Greek Exposure

curl --request GET \
  --url https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "data": [
    {
      "call_charm": "102382359.5786",
      "call_delta": "227549667.4651",
      "call_gamma": "9356683.4241",
      "call_vanna": "152099632406.9564",
      "date": "2023-09-08T00:00:00.000Z",
      "put_charm": "-943028472.4815",
      "put_delta": "-191893077.7193",
      "put_gamma": "-12337386.0524",
      "put_vanna": "488921784213.1121"
    },
    {
      "call_charm": "81465130.0002",
      "call_delta": "210202465.3421",
      "call_gamma": "8456599.8505",
      "call_vanna": "161231587973.6811",
      "date": "2023-09-07T00:00:00.000Z",
      "put_charm": "-1054548432.6111",
      "put_delta": "-210881557.3003",
      "put_gamma": "-12703877.0243",
      "put_vanna": "488921784213.1121"
    }
  ]
}

{
  "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": "[email protected]",
  "token_url": "https://unusualwhales.com/dashboard/api"
}

{
  "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": "[email protected]",
  "token_url": "https://unusualwhales.com/dashboard/api"
}

{
  "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"
}

"Something went wrong"

Gex/Greeks

Greek Exposure

Greek Exposure is the assumed greek exposure that market makers are exposed to.

The most popular greek exposure is gamma exposure (GEX).

Investors and large funds lower risk and protect their money by selling calls and buying puts. Market makers provide the liquidity to facilitate these trades.

GEX assumes that market makers are part of every transaction and that the bulk of their transactions are buying calls and selling puts to investors hedging their portfolios.

If a market maker has one contract open with a gamma value of 0.05, then that market maker is exposed to 0.05 * [100 shares] of gamma. The total market maker exposure is calculated by summing up the exposure values of all open contracts determined by the daily open interest.

Market makers profit from the bid-ask spreads and as such, they constantly gamma hedge (they buy and sell shares to keep their positions delta neutral).

Long call positions are positive gamma - as the stock price increases and delta rises (approaches 1), market makers hedge by selling shares, and they buy shares if the stock price decreases and delta falls.

Short put positions are negative gamma - as the stock price increases and delta falls (approaches -1), market makers hedge by buying shares, and they sell shares if the stock price decreases and delta rises.

As such, in the event of large positive gamma, volatility is suppressed as market makers will hedge by buying as the stock price decreases and selling as the stock price increases. And in the event of large negative gamma, volatility is amplified as market makers will hedge by buying as the stock price increases and selling as the stock price decreases.

This data updates once per day at market open.

GET

api

stock

{ticker}

greek-exposure

Greek Exposure

curl --request GET \
  --url https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.unusualwhales.com/api/stock/{ticker}/greek-exposure")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "data": [
    {
      "call_charm": "102382359.5786",
      "call_delta": "227549667.4651",
      "call_gamma": "9356683.4241",
      "call_vanna": "152099632406.9564",
      "date": "2023-09-08T00:00:00.000Z",
      "put_charm": "-943028472.4815",
      "put_delta": "-191893077.7193",
      "put_gamma": "-12337386.0524",
      "put_vanna": "488921784213.1121"
    },
    {
      "call_charm": "81465130.0002",
      "call_delta": "210202465.3421",
      "call_gamma": "8456599.8505",
      "call_vanna": "161231587973.6811",
      "date": "2023-09-07T00:00:00.000Z",
      "put_charm": "-1054548432.6111",
      "put_delta": "-210881557.3003",
      "put_gamma": "-12703877.0243",
      "put_vanna": "488921784213.1121"
    }
  ]
}

{
  "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": "[email protected]",
  "token_url": "https://unusualwhales.com/dashboard/api"
}

{
  "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": "[email protected]",
  "token_url": "https://unusualwhales.com/dashboard/api"
}

{
  "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"
}

"Something went wrong"

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Path Parameters

ticker

string

required

A single ticker

Example:

"AAPL"

Query Parameters

date

string

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"

timeframe

string

default:1Y

The timeframe of the data to return. Can be one of the following formats:

YTD
1D, 2D, etc.
1W, 2W, etc.
1M, 2M, etc.
1Y, 2Y, etc.

Example:

"2M"

Response

call_charm

string

The sum of the charm values of all call transactions that executed multiplied by the open interest and the number of shares per contract (typically 100 shares per contract).

Example:

"102382359.5786"

call_delta

string

The sum of the delta values of all call transactions that executed multiplied by the open interest and the number of shares per contract (typically 100 shares per contract).

Example:

"227549667.4651"

call_gamma

string

The sum of the gamma values of all call transactions that executed multiplied by the open interest and the number of shares per contract (typically 100 shares per contract).

Example:

"9356683.4241"

call_vanna

string

The sum of the vanna values of all call transactions that executed multiplied by the open interest and the number of shares per contract (typically 100 shares per contract).

Example:

"152099632406.9564"

date

string

A trading date in ISO format.

Example:

"2023-09-08T00:00:00.000Z"

put_charm

string

The sum of the charm values of all put transactions that executed multiplied by the open interest and the number of shares per contract (typically 100 shares per contract).

Example:

"-943028472.4815"

put_delta

string

The sum of the delta values of all put transactions that executed multiplied by the open interest and the number of shares per contract (typically 100 shares per contract).

Example:

"-191893077.7193"

put_gamma

string

The sum of the gamma values of all put transactions that executed multiplied by the open interest and the number of shares per contract (typically 100 shares per contract).

Example:

"-12337386.0524"

put_vanna

string

The sum of the vanna values of all put transactions that executed multiplied by the open interest and the number of shares per contract (typically 100 shares per contract).

Example:

"488921784213.1121"

Last modified on September 29, 2026

Docs

Endpoints

Greek Exposure

Authorizations

Path Parameters

Query Parameters

Response