---
title: "Short Interest"
method: GET
path: "/api/v1/index/short_interest"
tags: ["Short Interest"]
---

# Short Interest

`GET /api/v1/index/short_interest`

Unlock a detailed view of short interest activity for securities worldwide. This endpoint provides rich and actionable insights into short interest metrics, offering you a clear perspective on market behavior for a given day.

This API returns data for multiple stocks in an index for the specified date.

### Available Data Points:

*   **Date:** The specific date for which the data is retrieved (`YYYY-MM-DD` format).
*   **Operating MIC:** The operating Market Identifier Code of the security.
*   **Ticker:** The ticker symbol associated with the security.
*   **Exchange:** Symbol of the exchange where the security trades.
*   **Company:** The name of the company issuing the security.
*   **FIGI** The Financial Instrument Global Identifier.
*   **Share Class FIGI:** The Financial Instrument Global Identifier for the share class.

*   **Short Interest Shares:** A precise estimation of shares currently shorted.
*   **Percentage of Free Float:** The estimated percentage of short interest relative to the security's free float.
*   **Short Interest Value in USD:** Calculated as (`shortInterestShares` \* closing price in USD).
*   **Short Score:** ORTEX composite score (0–100) indicating relative short-selling pressure.

**Try it out!** You can test the API with the **trial key** `TEST`. Simply include it in your request headers; either here, or add the header `"Ortex-Api-Key": "TEST"` to your http request.

**Trial key restrictions:** A list of randomly selected rows will be returned

**Get full access!** Get a key at [app.ortex.com/apis](https://app.ortex.com/apis)

## Query parameters

- `date` string, date
- `format` 'csv' | 'json'
- `index` 'Europe Top 600' | 'UK Top 100' | 'US-N 100' | 'US-S 500'
- `page` integer
- `page_size` integer
- `portfolio_name` string

## Response `200`

- PaginatedShortInterestIndexV1APIList
  - `paginationLinks` object
  - `length` integer, required
  - `rows` ShortInterestIndexV1API[], required
    - `date` string, date, required
    - `operatingMic` string
    - `exchange` string, required
    - `ticker` string, required
    - `company` string, required
    - `figi` string, required
    - `shareClassFigi` string
    - `siShares` integer
    - `siPctFreeFloat` number, double
    - `shortInterestValueUsd` integer
    - `shortScore` number, double

## Other responses

- `400` — Invalid request parameters
- `403` — Not authorized
- `404` — Data not found
- `429` — Rate limit exceeded
- `500` — Internal server error

---

[API](https://skmtc.dev/ortex/apis/ortex-apis.md) · [All operations](https://skmtc.dev/ortex/apis/ortex-apis/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/ortex/ortex-apis/revisions/2629fc613cdc/schema)