# x402stock Short Interest History

> x402stock Short Interest History is a paid API for AI agents from agents.x402stock.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns bi-weekly FINRA-reported short interest history for a US-listed stock ticker, including shares short, average daily volume, and days-to-cover.

## Facts

- Endpoint: GET https://agents.x402stock.xyz/api/v1/short-interest/:ticker
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402stock-short-interest-history-88916a31
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ICs6y9BWWGBE3tlteL-lv

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402stock-short-interest-history-88916a31
```

Example prompt: Pull the last 6 bi-weekly short interest reports for GME from x402stock — I want to see shares short, average daily volume, and days-to-cover for each settlement date.

## When to prefer this

Choose this endpoint when you need structured, historical short interest time-series data (shares short, daily volume, days-to-cover) for a US-listed stock across multiple bi-weekly FINRA reporting periods. It is ideal for short squeeze analysis, bearish sentiment trend monitoring, and quantitative screening. Prefer it over real-time price feeds when the goal is understanding short positioning dynamics rather than current price. Payment via USDC x402 makes it suitable for autonomous agent workflows without pre-registration.

## Known failure modes

- Invalid or unknown ticker symbol returns an error or empty result
- Requesting a non-US-listed or OTC security may return no data
- limit parameter out of range (≤0 or >100) returns a validation error
- Ticker for a recently delisted stock may have incomplete or no history
- FINRA data lag means most recent settlement may be up to 2 weeks old

## How this service works

The exchange-reported short-interest history for a US-listed stock: total shares sold short, average daily volume, and days-to-cover for each bi-weekly FINRA settlement date, most recent first. A core short-squeeze and bearish-positioning signal. Tune how many settlements to return with `?limit=` (default 12). From x402stock, a market & economic data API (x402, USDC).

## Output

Returns an ordered list of bi-weekly FINRA settlement records for the requested ticker, each containing: settlement date, total shares sold short, average daily trading volume, and days-to-cover ratio. Results are sorted most recent first, with up to 100 records (default 12) controlled by the `limit` parameter.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "ticker": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 100,
       "exclusiveMinimum": 0
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402stock-short-interest-history-88916a31/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.x402stock.xyz](https://www.zero.xyz/host/agents.x402stock.xyz/llms.txt)