# Bulk Short Interest & Daily Short Volume - Nasdaq + FINRA (`automia-admin/short-interest-bulk-scraper`) Actor

Short interest for hundreds of US tickers in one run instead of one ticker per run. Merges Nasdaq bimonthly short interest - shares short, days to cover, average daily volume, percent change - with the FINRA daily short volume file. Pass a ticker list or scan every Nasdaq-listed symbol.

- **URL**: https://apify.com/automia-admin/short-interest-bulk-scraper.md
- **Developed by:** [Andrés Santiso](https://apify.com/automia-admin) (community)
- **Categories:** Developer tools, AI
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $9.00 / 1,000 short interest records

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event

## What's an Apify Actor?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
The best way to integrate Actors is as follows.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).

# README

## Bulk Short Interest & Daily Short Volume — Nasdaq + FINRA

Get short interest for **hundreds of US tickers in one run** instead of one ticker per run, and merge it with the **FINRA daily short volume** that comes out *every trading day* — not just twice a month.

Most short-interest tools take **one ticker per run**. This one takes a **list**, or the **entire market**, and adds the daily short-volume signal that sits between the official bimonthly releases.

### What you get

Two record types in one dataset, told apart by `recordType`:

**`shortInterest`** — official Nasdaq bimonthly short interest, one row per settlement date:

| field | meaning |
|---|---|
| `symbol` | ticker |
| `settlementDate` | settlement date (ISO `YYYY-MM-DD`) |
| `shortInterest` | shares sold short |
| `avgDailyShareVolume` | average daily share volume for the period |
| `daysToCover` | short interest ÷ average daily volume |
| `percentChangeVsPrior` | % change in short interest vs the prior settlement date |

**`shortVolume`** — FINRA consolidated daily short volume, one row per trading day:

| field | meaning |
|---|---|
| `symbol` | ticker |
| `date` | trading day (ISO `YYYY-MM-DD`) |
| `shortVolume` | consolidated short volume |
| `shortExemptVolume` | short exempt volume |
| `totalVolume` | total consolidated volume |
| `shortVolumePercent` | `shortVolume / totalVolume × 100` |
| `markets` | reporting facilities |

### How to use it

- **A list of tickers** → put them in `tickers`. Each gets its short interest and its recent daily short volume.
- **The whole market's daily short volume** → turn on `scanEntireMarketShortVolume`. One run returns every US symbol's short volume for the latest trading day(s) — about 12,000 rows per day, from a single file.
- **Short interest for every Nasdaq-listed stock** → turn on `allNasdaqListed` (bounded by `maxTickers`).

Use `shortVolumeDays` to pull more than one day of short volume, and `settlementRows` to cap the short-interest history per ticker.

### Scope and limits (please read)

- **Short interest is only available for Nasdaq-listed stocks.** This is a Nasdaq restriction, not a limitation of this Actor. NYSE-listed stocks and ETFs return no short interest and are **reported as skipped and never charged** — they still get FINRA short volume, which covers them.
- **FINRA publishes on trading days only.** Weekends, holidays, and the current day before publication have no file; the Actor automatically walks back to the most recent available day(s).
- No API key, no browser, no proxy required.

### Pricing

Pay-per-event. **An empty result is free**, and skipped tickers are never charged.

| event | when |
|---|---|
| Run start | once per run |
| Short interest record | per settlement-date row returned |
| Daily short volume row | per trading-day short-volume row returned |

### No personal data

The output is symbols and volumes. There is not a single person in it, by design.

# Actor input Schema

## `tickers` (type: `array`):

US stock symbols to pull short interest and daily short volume for, e.g. AAPL, TSLA, GME. Short interest is only available for Nasdaq-listed stocks; NYSE stocks and ETFs are reported as skipped and never charged (they still get FINRA short volume). Leave everything empty to run a small demo.

## `includeShortInterest` (type: `boolean`):

Bimonthly official short interest per ticker: shares short, average daily share volume, days to cover, and percent change vs the prior settlement date.

## `includeShortVolume` (type: `boolean`):

Daily consolidated short volume per ticker from the FINRA RegSHO file: short volume, short exempt volume, total volume and short-volume percent.

## `shortVolumeDays` (type: `integer`):

Number of most recent trading days of FINRA short volume to include per ticker. Weekends and holidays are skipped automatically.

## `settlementRows` (type: `integer`):

Cap the number of settlement-date rows returned per ticker (newest first). Leave at 0 to return the full available history (about 12 months).

## `scanEntireMarketShortVolume` (type: `boolean`):

Emit the FINRA daily short volume for EVERY US symbol (about 12,000 rows per day) in one run - no ticker list needed. This is the true whole-market pull; it fetches one file per day, not one request per ticker.

## `allNasdaqListed` (type: `boolean`):

Enumerate every Nasdaq-listed symbol from the Nasdaq screener and pull short interest for each. Warning: short interest is one request per ticker, so a full scan of ~4,000 symbols takes time. Use the Max tickers cap to bound it.

## `maxTickers` (type: `integer`):

Upper bound on how many symbols the all-Nasdaq-listed scan will process.

## `useApifyProxy` (type: `boolean`):

Off by default: Nasdaq and FINRA answer fine from Apify without it. Turn it on only if you hit rate limits on a very large scan.

## Actor input object example

```json
{
  "tickers": [
    "AAPL",
    "TSLA",
    "MSTR"
  ],
  "includeShortInterest": true,
  "includeShortVolume": true,
  "shortVolumeDays": 1,
  "settlementRows": 0,
  "scanEntireMarketShortVolume": false,
  "allNasdaqListed": false,
  "maxTickers": 500,
  "useApifyProxy": false
}
```

# Actor output Schema

## `results` (type: `string`):

No description

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "tickers": [
        "AAPL",
        "TSLA",
        "MSTR"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("automia-admin/short-interest-bulk-scraper").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "tickers": [
        "AAPL",
        "TSLA",
        "MSTR",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("automia-admin/short-interest-bulk-scraper").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "tickers": [
    "AAPL",
    "TSLA",
    "MSTR"
  ]
}' |
apify call automia-admin/short-interest-bulk-scraper --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,automia-admin/short-interest-bulk-scraper"
        }
    }
}

```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/wswjELDifrxzNcULy/builds/YTcmoRMjypXtYtY1B/openapi.json