---
title: "Put/call ratio"
method: GET
path: "/options/pcr"
tags: ["Options"]
---

# Put/call ratio

`GET /options/pcr`

## Request

- Base URL: `https://docs.backquant.com/v2`
- URL: `https://docs.backquant.com/v2/options/pcr`
- Auth: API key in header `X-API-Key`

OI-weighted put/call ratio. `?granularity=intraday` returns the rolling intraday series; `daily` returns one value per UTC day.

## Query parameters

- `symbol` 'BTCUSDT' | 'ETHUSDT' | 'SOLUSDT' | 'HYPEUSDT': Trading symbol: BTCUSDT, ETHUSDT, SOLUSDT, or HYPEUSDT.
- `granularity` 'intraday' | 'daily': `intraday` returns the rolling intraday series; `daily` returns one row per UTC day.
- `days` integer: Trim window for daily mode

## Headers

- `X-API-Key` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `401`: Invalid or missing API key
- `404`: No data available for the requested resource
- `422`: Validation error on query parameters
- `429`: Rate limit exceeded

---

[API](https://skmtc.dev/backquant/apis/backquant-api-v2.md) · [All operations](https://skmtc.dev/backquant/apis/backquant-api-v2/llms.txt) · [OpenAPI document](https://skmtc.dev/backquant/apis/backquant-api-v2/revisions/3c1c96b3cc24?raw)