> ## 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

# Ticker

> A ticker symbol of any kind (stock, etf, index, option underlying, ...).

Message
fields**4**
used by[EtfInfo](/docs/kafka/types/EtfInfo.md)
used by[FlexConsolidation](/docs/kafka/types/FlexConsolidation.md)
used by[FlexOption](/docs/kafka/types/FlexOption.md)
used by[OptionChain](/docs/kafka/types/OptionChain.md)
used by[StockScreenerState](/docs/kafka/types/StockScreenerState.md)
used by[ThirteenFOptionHolding](/docs/kafka/types/ThirteenFOptionHolding.md)
used by[TickerDividend](/docs/kafka/types/TickerDividend.md)
used by[TickerEarnings](/docs/kafka/types/TickerEarnings.md)
used by[TickerInsiderVolume](/docs/kafka/types/TickerInsiderVolume.md)
used by[TickerOiStats](/docs/kafka/types/TickerOiStats.md)
used by[TickerPerformance](/docs/kafka/types/TickerPerformance.md)
used by[TickerShares](/docs/kafka/types/TickerShares.md)
used by[TickerVolatility](/docs/kafka/types/TickerVolatility.md)

**Proto definition**

```protobuf schema.proto theme={null}
message Ticker {
  int32 id = 1;
  string ticker = 2;
  optional IssueType issue_type = 3;
  bool first_time_options_today = 4;
}
```

## Fields

The number on the right of each row is the protobuf field number.

id
int32
1

Unique id of the ticker.

ticker
string
2

Ticker symbol, e.g. AAPL or SPXW.

issue\_type
[IssueType](/docs/kafka/types/IssueType.md)
optional
3

Issue type (stock, etf, index, ...). Absent when not yet classified.

first\_time\_options\_today
bool
4

True when options appear for this ticker for the first time, i.e. it had no other active (non-expired) chains loaded when this chain was created.