> ## Documentation Index
> Fetch the complete documentation index at: https://api.unusualwhales.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> API requests use the base URL https://api.unusualwhales.com and require a bearer token in the `Authorization` header (`Authorization: Bearer <API_KEY>`). Create and manage API tokens at https://unusualwhales.com/dashboard/api.
> For live market data inside an AI tool, use the Unusual Whales MCP server at https://unusualwhales.com/public-api/mcp.
> Instructions for agents using Unusual Whales tools: https://unusualwhales.com/skill.md

# Implied Volatility Term Structure Distribution

> Returns one row per expiry with the range of that expiry's at the money implied volatility over the
365 calendar days ending on `date`. Each row holds the minimum, first quartile, median, third quartile
and maximum of the daily values, the value on `date`, and the share of daily values at or below it.

The response covers expiries after `date` and at most 365 days after it. An expiry without a value on
`date` is omitted. Expiries listed recently have few daily values, so check `samples` before comparing
ranges. Rows are ordered by expiry from nearest to furthest. `date` defaults to the last trading day.




## OpenAPI

````yaml /openapi.yaml get /api/stock/{ticker}/volatility/term-structure/distribution
openapi: 3.0.0
info:
  description: >
    For API Support or any questions email: support@unusualwhales.com


    Documentation for the official [UnusualWhales](https://unusualwhales.com)
    api


    ## Startup Tier

    Building a product on our data? Get started immediately with our self-serve
    Startup tier at $750/mo — 500 req/min, 80K daily requests, 90-day lookback,
    and commercial use included. Annual plan available at $7,500/yr (2 months
    free) with 1,000 req/min and 10 concurrent requests for market-open bursts.
    [Start building
    →](https://unusualwhales.com/checkout?plan=enterprise_startup&interval=monthly)


    Need Kafka streaming? Our Startup + Kafka tier at $3,000/mo adds real-time
    Kafka cluster access. Annual plan available at $30,000/yr (2 months free)
    with the same 1,000 req/min burst allowance. [Start building
    →](https://unusualwhales.com/checkout?plan=enterprise_startup_kafka&interval=monthly)


    ## Enterprise/Professional Subscribers

    For custom enterprise pricing, redistribution licenses, or bespoke
    solutions, email [oskar@unusualwhales.com, enterprise@unusualwhales.com or
    nastja.petrovic@unusualwhales.com](mailto:oskar@unusualwhales.com?cc=enterprise@unusualwhales.com,nastja.petrovic@unusualwhales.com).


    ## Changelog


    # 2026.09.28

    - The websocket documentation moved to
    [https://api.unusualwhales.com/docs/websocket](https://api.unusualwhales.com/docs/websocket),
    with one page per channel. REST endpoints that serve the same data as a
    websocket channel link to that channel's page.


    # 2026.09.21

    - Added a new websocket channel
    [`stock_screener`](https://api.unusualwhales.com/docs/websocket/stock-screener).
    It streams the latest stock screener row of every ticker and is the live
    counterpart of
    [`/screener/stocks`](https://api.unusualwhales.com/docs/operations/PublicApi.ScreenerController.stock_screener).


    # 2026.09.12

    - Added a new websocket channel
    [`ta_1d_live:{TICKER}`](https://api.unusualwhales.com/docs/websocket/technical-analysis-indicators).
    The channel streams technical-analysis indicator values (moving averages,
    RSI, MACD, Bollinger bands, ADX, Aroon, ATR, CCI, MFI, OBV, stochastics and
    Williams %R) computed on daily candles for one ticker. During regular
    trading hours it resends the day that is still forming as the price moves,
    so the newest message for a `date` replaces the ones before it. An indicator
    reads as `null` until enough daily history exists to compute it. The `1d` in
    the name is the candle interval and `live` means the values track the open
    session.


    # 2026.09.04

    - Added new websocket channels [`quotes` and
    `quotes:{TICKER}`](https://api.unusualwhales.com/docs/websocket/stock-quotes).
    They stream the live best bid and ask - for every ticker at once, or for a
    single ticker - and are the live counterpart of
    [`/stock/:ticker/quote`](https://api.unusualwhales.com/docs/operations/PublicApi.StockQuoteController.show).


    # 2026.09.01

    - Added a global
    [`greeks`](https://api.unusualwhales.com/docs/websocket/greeks) websocket
    channel. It streams the same per-contract option greeks as
    `greeks:<TICKER>`, but for every underlying at once. This is a high volume
    firehose - prefer the per-ticker channel unless you need the full tape.


    # 2026.08.30

    - MCP now advertises build guidance: `instructions` on initialize; builder
    prompts `build_dashboard_app`, `build_confluence_alert`,
    `build_trading_bot`, `build_data_stream`, `start_from_example`, and
    `setup_api_project`; tools `get_build_recipe` and `get_api_examples`
    (scripts from
    [https://github.com/unusual-whales/api-examples](https://github.com/unusual-whales/api-examples));
    and `resources/list` / `resources/templates/list` / `resources/read` for
    playbooks and example files.


    # 2026.08.28

    - Added a new websocket channel
    [`risk_reversal_skew`](https://api.unusualwhales.com/docs/websocket/risk-reversal-skew).
    The channel streams live 25- and 10-delta risk reversal skew (put implied
    volatility minus call implied volatility) per expiry across every ticker,
    the live counterpart of
    [`/stock/:ticker/historical-risk-reversal-skew`](https://api.unusualwhales.com/docs/operations/PublicApi.TickerController.historical_risk_reversal_skew).
    The channel is global only; there is no per-ticker variant.


    # 2026.08.22

    - Updated
    [`/stock/:ticker/gex-levels`](https://api.unusualwhales.com/docs/operations/PublicApi.TickerController.gex_levels)
    to derive its levels from directionalized volume instead of a cumulative
    total over the static open-interest snapshot.

    - Added `date`, `time`, `source`, and `nearby_flips` to the
    [`/stock/:ticker/gex-levels`](https://api.unusualwhales.com/docs/operations/PublicApi.TickerController.gex_levels)
    response. `nearby_flips` lists the five zero-gamma crossings nearest spot,
    ordered by distance from it. `time` is when the underlying exposure snapshot
    was calculated.


    # 2026.08.21

    - Added new websocket channels [`interpolated_iv` and
    `interpolated_iv:TICKER`](https://api.unusualwhales.com/docs/websocket/interpolated-iv).
    The channels stream interpolated implied volatility and expected moves at
    fixed horizons (1-365 trading days), the live counterpart of
    [`/stock/:ticker/interpolated-iv`](https://api.unusualwhales.com/docs/operations/PublicApi.TickerController.interpolated_iv).

    - Added new websocket channels [`iv_term_structure` and
    `iv_term_structure:TICKER`](https://api.unusualwhales.com/docs/websocket/iv-term-structure).
    The channels stream ATM implied volatility and expected moves per real
    option expiry — the raw entries behind `interpolated_iv` — the live
    counterpart of
    [`/stock/:ticker/volatility/term-structure`](https://api.unusualwhales.com/docs/operations/PublicApi.TickerController.implied_volatility_term_structure).


    # 2026.04.30

    Added a new advanced-tier endpoint group. All routes below require API
    Advanced, Enterprise Startup, Enterprise Startup + Kafka, or Enterprise
    tier.


    ### Company fundamentals

    - Added
    [`/companies/:ticker/profile`](https://api.unusualwhales.com/docs/operations/PublicApi.CompaniesController.profile)
    for sector, industry, market cap, P/E, EPS, dividend yield, analyst targets,
    52-week range, moving averages, and the full analyst rating breakdown.

    - Added
    [`/companies/:ticker/dividends`](https://api.unusualwhales.com/docs/operations/PublicApi.CompaniesController.dividends)
    for historical dividend events.

    - Added
    [`/companies/:ticker/splits`](https://api.unusualwhales.com/docs/operations/PublicApi.CompaniesController.splits)
    for historical stock-split events.

    - Added
    [`/companies/:ticker/earnings-estimates`](https://api.unusualwhales.com/docs/operations/PublicApi.CompaniesController.earnings_estimates)
    for forward analyst earnings and revenue estimates by quarter and year.

    - Added
    [`/companies/:ticker/transcripts/:quarter`](https://api.unusualwhales.com/docs/operations/PublicApi.CompaniesController.transcript)
    for earnings-call transcripts with speakers, statements, and per-statement
    sentiment.

    - Added
    [`/companies/listings`](https://api.unusualwhales.com/docs/operations/PublicApi.IntelController.listings)
    for the master list of US-traded securities (active or delisted).


    ### Macro

    - Added
    [`/commodities/:name`](https://api.unusualwhales.com/docs/operations/PublicApi.CommoditiesController.show)
    for long-running price series across WTI, Brent, natural gas, copper,
    aluminum, wheat, corn, cotton, sugar, coffee, and the global commodities
    index.

    - Added
    [`/economy/:indicator`](https://api.unusualwhales.com/docs/operations/PublicApi.EconomyController.show)
    for US economic indicator series (GDP, GDP per capita, treasury yield, fed
    funds rate, CPI, inflation, retail sales, durables, unemployment, payrolls).


    ### Forex

    - Added
    [`/forex/rate`](https://api.unusualwhales.com/docs/operations/PublicApi.ForexController.rate)
    for live FX spot rates with bid and ask.

    - Added
    [`/forex/intraday`](https://api.unusualwhales.com/docs/operations/PublicApi.ForexController.intraday)
    for 1min through 60min FX OHLC bars.

    - Added
    [`/forex/history`](https://api.unusualwhales.com/docs/operations/PublicApi.ForexController.history)
    for daily, weekly, and monthly FX OHLC bars.


    ### Digital currencies

    - Added
    [`/digital-currencies/intraday`](https://api.unusualwhales.com/docs/operations/PublicApi.DigitalCurrenciesController.intraday)
    for intraday OHLC bars priced against a fiat market.

    - Added
    [`/digital-currencies/history`](https://api.unusualwhales.com/docs/operations/PublicApi.DigitalCurrenciesController.history)
    for daily, weekly, and monthly OHLC bars.


    ### Market intel and analytics

    - Added
    [`/market/movers`](https://api.unusualwhales.com/docs/operations/PublicApi.IntelController.movers)
    for pre-ranked top gainers, top losers, and most actively traded US tickers.

    - Added
    [`/calendar/ipo`](https://api.unusualwhales.com/docs/operations/PublicApi.IntelController.ipo_calendar)
    for upcoming IPOs over the next 3 months.

    - Added
    [`/analytics/window`](https://api.unusualwhales.com/docs/operations/PublicApi.IntelController.analytics_window)
    for fixed-window statistical analytics across baskets of tickers (mean,
    stddev, correlation, drawdown, autocorrelation, covariance, and more).

    - Added
    [`/analytics/sliding`](https://api.unusualwhales.com/docs/operations/PublicApi.IntelController.analytics_sliding)
    for sliding-window statistical analytics.


    ### Congressional unusual trades (scope `unusual-trades`)

    - Added
    [`/congress/unusual-trades`](https://api.unusualwhales.com/docs/operations/PublicApi.UnusualTradesController.recent)
    for unusual congressional trades filtered by reason tag (committee_conflict,
    first_person_to_trade, low_marketcap, unusual_industry,
    unusually_large_trade, fec_donation_conflict).

    - Added
    [`/congress/unusual-trades/by-tickers`](https://api.unusualwhales.com/docs/operations/PublicApi.UnusualTradesController.by_tickers)
    with ticker, transaction type, date range, and politician filters.

    - Added
    [`/congress/unusual-trades/chart-data`](https://api.unusualwhales.com/docs/operations/PublicApi.UnusualTradesController.chart_data)
    returning trade points with SPY benchmark closes.

    - Added
    [`/congress/unusual-trades/stats`](https://api.unusualwhales.com/docs/operations/PublicApi.UnusualTradesController.stats)
    for aggregate overview statistics.


    ### Private markets (scope `private-markets`)

    - Added
    [`/private-markets/companies`](https://api.unusualwhales.com/docs/operations/PublicApi.PrivateMarketsController.companies)
    for the full Nasdaq Private Markets company list with sector and name
    filters.

    - Added
    [`/private-markets/companies/:npm_ticker`](https://api.unusualwhales.com/docs/operations/PublicApi.PrivateMarketsController.company_profile)
    for the company profile with latest price, total funding, and investor
    count.

    - Added
    [`/private-markets/companies/:npm_ticker/funding`](https://api.unusualwhales.com/docs/operations/PublicApi.PrivateMarketsController.funding)
    for funding round history.

    - Added
    [`/private-markets/companies/:npm_ticker/investors`](https://api.unusualwhales.com/docs/operations/PublicApi.PrivateMarketsController.investors)
    for disclosed investors.

    - Added
    [`/private-markets/companies/:npm_ticker/management`](https://api.unusualwhales.com/docs/operations/PublicApi.PrivateMarketsController.management)
    for disclosed leadership.

    - Added
    [`/private-markets/companies/:npm_ticker/pricing`](https://api.unusualwhales.com/docs/operations/PublicApi.PrivateMarketsController.pricing)
    for historical implied per-share pricing.

    - Added
    [`/private-markets/investors`](https://api.unusualwhales.com/docs/operations/PublicApi.PrivateMarketsController.top_investors)
    for top investors ranked by distinct company count.

    - Added
    [`/private-markets/investors/:name`](https://api.unusualwhales.com/docs/operations/PublicApi.PrivateMarketsController.investor_profile)
    for an investor's portfolio.

    - Added
    [`/private-markets/search`](https://api.unusualwhales.com/docs/operations/PublicApi.PrivateMarketsController.search)
    for substring search across companies and investors.


    ### MCP

    - Added 5 premium MCP catalogs covering the new endpoints:
    `uw_companies_extras`, `uw_macro`, `uw_forex`, `uw_digital_currencies`,
    `uw_intel`. Plus `uw_unusual_trades` and `uw_private_markets` for the
    scope-gated catalogs above.

    - Premium MCP catalogs and individual premium commands
    (`uw_stock.ownership`, `uw_flow.full_tape`, `uw_politicians`) are now hidden
    by default. Operators opt in via `UW_ENABLE_PREMIUM_TOOLS=true` (all on) or
    `UW_PREMIUM_TOOLS=uw_companies_extras,uw_macro,...` (per-tool allowlist
    supporting `<catalog_id>` or `<catalog_id>.<command>` form).


    # 2026.04.29

    - Added MCP tool `get_short_volume_ratio_by_exchange` for
    [`/shorts/:ticker/volumes-by-exchange`](https://api.unusualwhales.com/docs/operations/PublicApi.ShortController.short_volume_by_exchange)
    data.

    - Added MCP tool `get_short_volume_ratio_by_ticker` for
    [`/shorts/:ticker/volume-and-ratio`](https://api.unusualwhales.com/docs/operations/PublicApi.ShortController.short_volume_and_ratio)
    data.

    - Added MCP tool `get_short_screener` for
    [`/short_screener`](https://api.unusualwhales.com/docs/operations/PublicApi.ShortController.short_screener)

    - Added MCP tool `get_short_data_by_ticker` for
    [`/shorts/:ticker/data`](https://api.unusualwhales.com/docs/operations/PublicApi.ShortController.short_data)


    # 2026.04.14

    - Enhanced MCP [`/api/mcp`](https://api.unusualwhales.com/docs) `tools/call`
    validation to reject unsupported arguments, missing required arguments, and
    invalid enum values before tool execution.

    - MCP tool errors now include retry guidance telling clients to inspect
    `tools/list` `inputSchema` and retry with supported arguments.


    # 2026.03.02

    - Added authenticated MCP endpoint
    [`/api/mcp`](https://api.unusualwhales.com/docs) to expose existing AI tools
    to API subscribers using the same `Authorization: Bearer <API_TOKEN>` flow.

    - Supports MCP `initialize`, `tools/list`, and `tools/call` methods backed
    by the existing internal tool registry and execution pipeline.


    # 2026.01.20

    - Updated interest-float endpoint with new version and deprecated old
    version

    -
    [`/shorts/:ticker/interest-float/v2`](https://api.unusualwhales.com/docs#/operations/PublicApi.ShortController.short_interest_and_float_v2)

    - Added interest-float search screener endpoint

    -
    [`/short_screener`](https://api.unusualwhales.com/docs#/operations/PublicApi.ShortController.short_screener)


    # 2025.09.23


    - Added new websocket channels
    [`lit_trades`](https://api.unusualwhales.com/docs/websocket/lit-trades) and
    [`off_lit_trades`](https://api.unusualwhales.com/docs/websocket/off-lit-trades)
    to stream live lit (exchange-based) and off-lit (dark pool) trades
    respectively.


    # 2025.09.22


    - Added `newer_than` and `older_than` time filtering parameters to
    [`/alerts`](https://api.unusualwhales.com/docs#/operations/PublicApi.AlertsController.alerts)
    endpoint with 14-day maximum lookback period for custom alerts queries


    # 2025.08.20


    - Added
    [`/market/top-net-impact`](https://api.unusualwhales.com/docs#/operations/PublicApi.MarketController.top_net_impact)
    endpoint to get the top tickers by net premium (split between bullish and
    bearish). Supports filtering by `issue_types[]`, `date`, and `limit`
    (default 20, max 100).


    # 2025.06.18


    - Added
    [`/market/:sector/sector-tide`](https://api.unusualwhales.com/docs#/operations/PublicApi.MarketController.sec_indst)
    endpoint to get the market tide for a specific sector


    # 2025.06.02


    - Added
    [`/stock/:ticker/interpolated-iv`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.interpolated_iv)
    endpoint to get the interpolated iv for various days



    # 2025.05.29


    - Added
    [`/option-contract/:id/volume-profile`](https://api.unusualwhales.com/docs#/operations/PublicApi.OptionContractController.volume_profile)
    endpoint to get the volume profile of an option contract (volume by fill
    price)


    # 2025.05.23


    - Added
    [`/option-contract/:id/intraday`](https://api.unusualwhales.com/docs#/operations/PublicApi.OptionContractController.intraday)
    endpoint to get the volume, premium & OHLC for a contract in 1min ticks for
    a given trading day


    # 2025.05.07


    - Added `prev_close_price` field to
    [`/stock/:ticker/stock-state`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.last_stock_state)
    endpoint to provide the previous close price.


    # 2025.04.30


    - Enhanced
    [`/option-trades/full-tape/{date}`](https://api.unusualwhales.com/docs#/operations/PublicApi.OptionTradeController.full_tape)
    to allow users with `websocket` scope to access the last two trading days of
    data


    # 2025.04.23


    - Added
    [`/net-flow/expiry`](https://api.unusualwhales.com/docs#/operations/PublicApi.NetFlowController.expiry)
    endpoint to track net premium flow by tide type, moneyness, and expiration
    categories. This powers charts like those found on the [zero-DTE
    dashboard](https://unusualwhales.com/zero-dte)


    # 2025.04.08


    - Enhanced
    [`/market/correlations`](https://api.unusualwhales.com/docs#/operations/PublicApi.MarketController.correlations)
    endpoint with new date filtering options: `start_date` and `end_date`
    parameters to specify custom date ranges, complementing the existing
    `interval` parameter


    # 2025.03.23

    - Updated
    [`/stock/{ticker}/net-prem-ticks`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.net_prem_ticks)
    endpoint to

    include `call_volume`, `put_volume`, `call_volume_bid_side`, 
    `put_volume_bid_side`, `call_volume_ask_side`,  `put_volume_ask_side` &
    `net_delta`.


    # 2025.03.10


    - Added
    [`/news/headlines`](https://api.unusualwhales.com/docs#/operations/PublicApi.NewsController.headlines)
    endpoint to access financial news headlines with filtering capabilities

    - Added Shorts API endpoints:
      - [`/shorts/:ticker/data`](https://api.unusualwhales.com/docs#/operations/PublicApi.ShortController.short_data)
      - [`/shorts/:ticker/volumes-by-exchange`](https://api.unusualwhales.com/docs#/operations/PublicApi.ShortController.short_volume_by_exchange)
      - [`/shorts/:ticker/ftds`](https://api.unusualwhales.com/docs#/operations/PublicApi.ShortController.failures_to_deliver)
      - [`/shorts/:ticker/interest-float`](https://api.unusualwhales.com/docs#/operations/PublicApi.ShortController.short_interest_and_float)
      - [`/shorts/:ticker/volume-and-ratio`](https://api.unusualwhales.com/docs#/operations/PublicApi.ShortController.short_volume_and_ratio)

    # 2025.02.19


    - The endpoint
    [`/stock/:ticker/spot-exposures/:expiry/strike`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.spot_exposures_by_strike_expiry)
    has been deprecated and been replaced by
    [`/stock/:ticker/spot-exposures/expiry-strike`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.spot_exposures_by_strike_expiry_v2)


    To migrate over replace all your
    `/api/stock/:ticker/spot-exposures/:expiry/strike` calls with
    `/api/stock/:ticker/spot-exposures/expiry-strike?expirations[]=expiry`


    # 2025.02.13

    - The endpoint `/congress/recent-reports` has been removed as it returns the
    same data as `/congress/recent-trades`.


    # 2025.02.05

    - Enhanced
    [`/market/fda-calendar`](https://api.unusualwhales.com/docs#/operations/PublicApi.MarketController.fda_calendar)
    with better FDA data, additional fields (notes, outcomes, sources), and
    filtering by company metrics


    # 2025.02.03

    - Updated dark pool/off lit endpoints to allow filtering for size, premium &
    consolidated volume


    # 2025.01.22

    - Added
    [`gex_strike_expiry:<TICKER>`](https://api.unusualwhales.com/docs/websocket/gex)
    channel to the websocket

    - Added `call_option_symbol` & `put_option_symbol` to
    [`/stock/{ticker}/greeks`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.greeks)


    # 2025.01.16

    - Added
    [`/stock/:ticker/spot-exposures/:expiry/strike`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.spot_exposures_by_strike_expiry)


    # 2024.12.11

    - Added
    [`/alerts/configuration`](https://api.unusualwhales.com/docs#/operations/PublicApi.AlertsController.configs)

    - Added
    [`/alerts`](https://api.unusualwhales.com/docs#/operations/PublicApi.AlertsController.alerts)


    This allows one to grab all the alerts that have been triggerd for any alert
    that one has configured. With an existing unusualwhales account you can view
    and configure alerts directly on the
    [website](https://unusualwhales.com/custom-alerts)


    # 2024.12.02

    - Added
    [`/stock/:ticker/oi-per-strike`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.oi_per_strike)

    - Added
    [`/stock/:ticker/oi-per-expiry`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.oi_per_expiry)


    # 2024.11.19

    - Improved all earnings endpoint


    # 2024.11.09

    - Added `perc_of_total` & `perc_of_share_value` to
    [`/institution/:name/holdings`](https://api.unusualwhales.com/docs#/operations/PublicApi.InstitutionController.holdings)


    # 2024.10.30

    - Added
    [`/stock/:ticker/nope`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.nope)


    # 2024.10.28

    - Added
    [`/group-flow/:flow_group/greek-flow`](https://api.unusualwhales.com/docs#/operations/PublicApi.GroupFlowController.greek_flow)

    - Added
    [`/group-flow/:flow_group/greek-flow/:expiry`](https://api.unusualwhales.com/docs#/operations/PublicApi.GroupFlowController.greek_flow_expiry)

    - Added
    [`/stock/:ticker/greek-flow`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.greek_flow)

    - Added
    [`/stock/:ticker/greek-flow/:epxiry`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.greek_flow_expiry)


    # 2024.10.16

    - Added etf inflow & outflow endpoint
    [`/etfs/:ticker/in_outflow`](PublicApi.EtfController.in_outflow)


    # 2024.10.15

    - Added institutional latest filings endpoint
    [`/institution/latest_filings`](PublicApi.InstitutionController.latest_filings)

    - Added institutional ownership endpoint
    [`/institution/:ticker/ownership`](PublicApi.InstitutionController.ownership)


    # 2024.10.14

    - Added 2 new fields: `days_of_oi_increases` & `days_of_vol_greater_than_oi`
    to [`/market/oi-change`](PublicApi.MarketController.oi_change)

    ```

    days_of_oi_increases: The number of consecutive days that the open interest
    has increased for this contract. If on any day the open interest decreases
    or does not change the count will reset.


    days_of_vol_greater_than_oi: The number of consecutive days that the volume
    has been greater than the open interest for this contract. If on any day the
    volume is less than or equal to the open interest the count will reset.

    ```


    <br/>


    # 2024.10.10

    - Added institutional activity endpoint
    [`/institution/:name/activity`](PublicApi.InstitutionController.activity)


    # 2024.10.09

    - Added institutional list endpoint
    [`institutions`](PublicApi.InstitutionController.list)

    - Added institutional holdings endpoint
    [`/institution/:name/holdings`](PublicApi.InstitutionController.holdings)

    - Added institutional sector exposure endpoint
    [`/institution/:name/sectors`](PublicApi.InstitutionController.sectors)


    # 2024.08.01

    - Added new flow per strike intraday endpoint
    [`/stock/:ticker/flow-per-strike-intraday`](PublicApi.TickerController.flow_per_strike_intraday)


    # 2024.07.11

    - Added new correlation endpoint
    [`/market/correlations?tickers=SPY,QQQ,JPM,BAC`](PublicApi.MarketController.correlations)


    # 2024.05.30

    - Added the ability to filter
    [`/darkpool/:ticker`](PublicApi.DarkPoolController.darkpool_ticker) by
    timestamps through the two new query parameters `older_than` and
    `newer_than`


    # 2024.05.21

    - Added directionalized volume fields to
    [`/stock/:ticker/spot-exposures`](PublicApi.TickerController.spot_exposures_one_minute)
    and
    [`/stock/:ticker/spot-exposures/strike`](PublicApi.TickerController.spot_exposures_by_strike)


    # 2024.05.17

    - Added the channels `gex:TICKER` & `gex_strike:TICKER` to the
    [websocket](https://api.unusualwhales.com/docs/websocket)


    # 2024.05.07

    - Added the ability to filter
    [`/option-trades/flow-alerts`](PublicApi.OptionTradeController.flow_alerts)
    by timestamps through the two new query parameters `older_than` and
    `newer_than`


    # 2024.05.06

    - Added endpoint
    [`/stock/:ticker/stock-state`](PublicApi.TickerController.last_stock_state)
    to retrieve the last stock price & volume

    - Added endpoint
    [`/stock/:ticker/volatility/realized`](PublicApi.TickerController.realized_volatility)
    to retrieve a stock's realized volatility


    # 2024.05.03

    - The data returned by /stock/:ticker/option-contracts has been limited to
    500 results


    # 2024.05.02

    - Added endpoint
    [`/market/:ticker/etf-tide`](PublicApi.MarketController.etf_tide)


    # 2024.05.01

    - Added endpoint
    [`/stock/:ticker/spot-exposures/strike`](PublicApi.TickerController.spot_exposures_by_strike)

    - Added new channel
    [`price:TICKER`](https://api.unusualwhales.com/docs/websocket) to the
    websocket. The channel will push live price updates for the given ticker.


    # 2024.04.25

    - Added endpoint
    [`/stock/:ticker/greek-exposure/strike`](PublicApi.TickerController.greek_exposure_by_strike)

    - Added endpoint
    [`/stock/:ticker/greek-exposure/expiry`](PublicApi.TickerController.greek_exposure_by_expiry)

    - Added endpoint
    [`/stock/:ticker/greek-exposure/strike-expiry`](PublicApi.TickerController.greek_exposure_by_strike_expiry)


    # 2024.03.28

    - Fixed field name volatility -> risk_reversal for endpoint
    [`/stock/:ticker/historical_risk_reversal_skew`](PublicApi.TickerController.historical_risk_reversal_skew)


    # 2024.03.26

    - Added endpoint
    [`/stock/:ticker/greeks`](PublicApi.TickerController.greeks)

    - Added endpoint
    [`/stock/:ticker/historical_risk_reversal_skew`](PublicApi.TickerController.historical_risk_reversal_skew)


    # 2024.03.23

    - BREAKING CHANGE:

    Previously `/option-contract/:id/flow` would return the data as a json list.
    This has been now changed so that the endpoint

    returns the data in the format `{"data": [], "date": "2024-03-22"}`.
    Secondly, the endpoint will now only return data for

    a single trading day.


    # 2024.03.06

    - Added endpoint
    [`/option-trades/flow-alerts`](PublicApi.OptionTradeController.flow_alerts)

    - Added flow-alerts streaming to the WebSocket.


    # 2024.03.04

    - Added endpoint
    [`/stock/:ticker/max-pain`](https://api.unusualwhales.com/docs#/operations/PublicApi.TickerController.max_pain)


    # 2024.02.16

    - Added new endpoint section
    [`Seasonality`](https://api.unusualwhales.com/docs#/operations/PublicApi.SeasonalityController.market_seasonality)
    with new endpoints:
        - [`/seasonality/market`](https://api.unusualwhales.com/docs#/operations/PublicApi.SeasonalityController.market_seasonality)
        - [`/seasonality/:month/performers`](https://api.unusualwhales.com/docs#/operations/PublicApi.SeasonalityController.month_performers)
        - [`/seasonality/:ticker/monthly`](https://api.unusualwhales.com/docs#/operations/PublicApi.SeasonalityController.monthly)
        - [`/seasonality/:ticker/year-month`](https://api.unusualwhales.com/docs#/operations/PublicApi.SeasonalityController.year_month)

    # 2024.02.07

    - Added endpoints
    [`/stock/:ticker/expiry-breakdown`](https://api.unusualwhales.com/docs#/operations/PublicApi.OptionContractController.expiry_breakdown)
    &
    [`/stock/:ticker/option-contracts`](https://api.unusualwhales.com/docs#/operations/PublicApi.OptionContractController.option_contracts).
    These 2 endpoints allow access to the data located here:
    [https://unusualwhales.com/stock/AAPL/option-chains](https://unusualwhales.com/stock/AAPL/option-chains)
  title: UnusualWhales Api
  version: '1.0'
servers:
  - url: https://api.unusualwhales.com
    variables: {}
security:
  - authorization: []
tags: []
paths:
  /api/stock/{ticker}/volatility/term-structure/distribution:
    get:
      tags:
        - volatility
      summary: Implied Volatility Term Structure Distribution
      description: >
        Returns one row per expiry with the range of that expiry's at the money
        implied volatility over the

        365 calendar days ending on `date`. Each row holds the minimum, first
        quartile, median, third quartile

        and maximum of the daily values, the value on `date`, and the share of
        daily values at or below it.


        The response covers expiries after `date` and at most 365 days after it.
        An expiry without a value on

        `date` is omitted. Expiries listed recently have few daily values, so
        check `samples` before comparing

        ranges. Rows are ordered by expiry from nearest to furthest. `date`
        defaults to the last trading day.
      operationId: PublicApi.VolatilityController.term_structure_distribution
      parameters:
        - description: ''
          in: path
          name: ticker
          required: true
          schema:
            $ref: '#/components/schemas/SingleTicker'
        - description: ''
          in: query
          name: date
          required: false
          schema:
            $ref: '#/components/schemas/Optional_Market_Date'
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: >-
                  #/components/schemas/Implied_Volatility_Term_Structure_Distribution
          description: ''
        '401':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Authentication_Error'
          description: Unauthorized
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Forbidden_Error'
          description: Forbidden
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error_Message'
          description: Unprocessable Entity
        '500':
          content:
            text/plain:
              schema:
                $ref: >-
                  #/components/schemas/Error_Message_on_an_internal_server_error.
          description: Internal Server Error
      callbacks: {}
components:
  schemas:
    SingleTicker:
      description: A single ticker
      example: AAPL
      title: SingleTicker
      type: string
    Optional_Market_Date:
      description: |
        A trading date in the format of YYYY-MM-DD.
        This is optional and by default the last trading date.
      example: '2024-01-18T00:00:00.000Z'
      title: Optional Market Date
      type: string
    Implied_Volatility_Term_Structure_Distribution:
      description: >-
        The range of one expiry's at the money implied volatility over the 365
        calendar days ending on `date`. Volatility values are annualized
        decimals, so `0.43` means 43%.
      properties:
        date:
          example: '2026-09-18T00:00:00.000Z'
          format: date
          type: string
        dte:
          description: The number of calendar days from `date` to `expiry`.
          example: 91
          type: integer
        expiry:
          example: '2026-12-18T00:00:00.000Z'
          format: date
          type: string
        first_date:
          description: The earliest trading day included in the lookback for the expiry.
          example: '2025-09-19T00:00:00.000Z'
          format: date
          type: string
        max:
          description: The highest daily value in the lookback.
          example: '0.595370292271564'
          type: string
        median:
          description: >-
            The median of the daily values, interpolated linearly and rounded to
            6 decimals.
          example: '0.491979'
          type: string
        min:
          description: The lowest daily value in the lookback.
          example: '0.4291603363676975'
          type: string
        percentile:
          description: >-
            The share of daily values at or below `volatility`, from 0 to 1. The
            value on `date` counts as one of the daily values.
          example: '0.0080'
          type: string
        q1:
          description: >-
            The first quartile of the daily values, interpolated linearly and
            rounded to 6 decimals.
          example: '0.474857'
          type: string
        q3:
          description: >-
            The third quartile of the daily values, interpolated linearly and
            rounded to 6 decimals.
          example: '0.548378'
          type: string
        samples:
          description: >-
            The number of daily values in the lookback, one per trading day with
            a value for the expiry.
          example: 251
          type: integer
        ticker:
          example: TSLA
          type: string
        volatility:
          description: >-
            The implied volatility of the expiry on `date`. It is the average of
            the latest call and put implied volatility at the at the money
            strike.
          example: '0.4295974677151735'
          type: string
      title: Implied Volatility Term Structure Distribution
      type: object
    Authentication_Error:
      description: >-
        Returned with HTTP 401 when a request carries no API token, or carries
        one the API cannot use. The response also carries a `WWW-Authenticate`
        header with the `Bearer` challenge. Branch on `reason` rather than on
        `message`, whose wording can change.
      example:
        code: authentication_required
        documentation_url: https://api.unusualwhales.com/docs
        expected_format: uuid
        message: >-
          The API token provided is not in the expected format. Unusual Whales
          API tokens are UUIDs, such as 123e4567-e89b-12d3-a456-426614174000.
        reason: malformed_token
        request_id: GNI_YTC1CRnw2LACGBvE
        retryable: false
        support_email: dev@unusualwhales.com
        token_url: https://unusualwhales.com/dashboard/api
      properties:
        code:
          description: Always `authentication_required`.
          enum:
            - authentication_required
          type: string
        documentation_url:
          description: Where to read this API documentation.
          type: string
        expected_format:
          description: >-
            Present only when `reason` is `malformed_token`. The format the
            token must take.
          enum:
            - uuid
          type: string
        message:
          description: A plain description of the failure, written for a person.
          type: string
        reason:
          description: >-
            Which authentication failure occurred. `missing_token` means the
            request carried no token. `malformed_token` means a token was
            supplied but is not a UUID. `unrecognized_token` means the token is
            a UUID that no active token matches, which happens after a token is
            revoked or regenerated, or when it belongs to a different account.
          enum:
            - missing_token
            - malformed_token
            - unrecognized_token
          type: string
        request_id:
          description: >-
            Identifies this request in Unusual Whales logs. Quote it when
            contacting support. It matches the `x-request-id` response header,
            and is absent when no request id was assigned.
          type: string
        retryable:
          description: >-
            Always `false`. Replaying the same request unchanged returns the
            same error. Retrying with a corrected token can succeed.
          enum:
            - false
          type: boolean
        support_email:
          description: Where to send questions about API access.
          type: string
        token_url:
          description: Where to create and manage API tokens.
          type: string
      title: Authentication Error
      type: object
    Forbidden_Error:
      description: >-
        Returned with HTTP 403 when the API token is valid and recognized, but
        is not entitled to what the request asked for. Branch on `code`, which
        names the entitlement that is missing; `message` is written for a person
        and its wording can change. Unlike a 401 this response carries no
        `WWW-Authenticate` header, because presenting different credentials for
        the same token does not change the outcome.


        Only `code` and `message` are guaranteed. The remaining fields are sent
        by some checks and not others, so treat every one of them as optional.


        A 403 whose body is not JSON, or is JSON without a `code` field, did not
        come from this API. Those are produced by Cloudflare in front of the
        API, or by a proxy on the caller's own network, and neither says
        anything about the token or the subscription.
      example:
        code: missing_access
        documentation_url: https://api.unusualwhales.com/docs
        message: >-
          The API token provided is valid but is not permitted to access this
          route.
        reason: route_not_permitted
        request_id: GNI_YTC1CRnw2LACGBvE
        retryable: false
        support_email: dev@unusualwhales.com
        token_url: https://unusualwhales.com/dashboard/api
      properties:
        code:
          description: >-
            Which entitlement is missing. `missing_access` means the token is
            restricted to a set of routes that excludes the requested one.
            `historic_data_access_missing` means a date in the request predates
            the earliest date the token may query. `advanced_tier_required`,
            `futures_access_required`, `politics_scope_required` and
            `volatility_scope_required` each mean the endpoint needs a
            subscription tier or data add-on the account does not have.
            `admin_required` means the endpoint is internal to Unusual Whales.
          enum:
            - missing_access
            - historic_data_access_missing
            - advanced_tier_required
            - futures_access_required
            - politics_scope_required
            - volatility_scope_required
            - admin_required
          type: string
        documentation_url:
          description: Where to read this API documentation.
          type: string
        message:
          description: >-
            A plain description of what is missing and how to obtain it, written
            for a person. Do not branch on this string.
          type: string
        reason:
          description: >-
            Present only when `code` is `missing_access`. Narrows the cause
            within that code.
          enum:
            - route_not_permitted
          type: string
        request_id:
          description: >-
            Identifies this request in Unusual Whales logs. Quote it when
            contacting support. It matches the `x-request-id` response header,
            and is absent when no request id was assigned.
          type: string
        retryable:
          description: >-
            When present, always `false`. Replaying the same request unchanged
            returns the same error. Changing the request, the token, or the
            subscription can succeed.
          enum:
            - false
          type: boolean
        support_email:
          description: Where to send questions about API access.
          type: string
        token_url:
          description: Where to create and manage API tokens.
          type: string
      required:
        - code
        - message
      title: Forbidden Error
      type: object
    Error_Message:
      description: A json object containing information on the error cause.
      example:
        msg: >-
          Invalid path input: MSFT12 (valid example: AAPL) - Invalid query
          input(s): date=2023-02-140 (valid example: date=2024-01-18)
        path: /api/darkpool/MSFT12
        query: date=2023-02-140
        url: localhost:4000/api/darkpool/MSFT12?date=2023-02-140
      properties:
        msg:
          description: An error message containing information about the faulty input.
          type: string
        path:
          description: The URL path segment.
          type: string
        query:
          description: The URL query segment.
          type: string
        url:
          description: The full URL causing the error.
          type: string
      title: Error Message
      type: object
    Error_Message_on_an_internal_server_error.:
      description: >-
        A plain message informing, that an internal server error occured. In
        this case please send a mail with the full URL that caused the issue to
        support@unusualwhales.com.
      example: Something went wrong
      title: Error Message on an internal server error.
      type: string
  securitySchemes:
    authorization:
      scheme: bearer
      type: http

````