# Yahoo Finance Institutional holdings API (yahoo_finance.institutional_holdings)

- Canonical page: https://everyinfra.com/en/yahoo-finance-api/institutional_holdings
- Endpoint: POST /api/v1/social with {"platform": "yahoo_finance", "action": "institutional_holdings", "params": {...}}
- Price: $0.008 per call ($8 per 1,000 requests); failed and empty results are not charged
- Returns: single object
- Mode: sync; add "mode": "async" for slow tasks

## Health

- Live health (24h percent, hourly and daily trends): https://api.everyinfra.com/api/v1/social/availability?platform=yahoo_finance&action=institutional_holdings

## Parameters

| name | type | required | default | description |
|---|---|---|---|---|
| keyword | not declared | yes | not declared | One US-listed ticker, such as `NVDA` or `BRK.B`; a leading $ is removed. Pass one symbol, not a company name or a list. Only US-listed tickers are covered. |

## Response fields (items in `results`)

| field | meaning |
|---|---|
| symbol | platform-native meaning |
| institutional_ownership_pct | platform-native meaning |
| shares_outstanding | platform-native meaning |
| holdings_value_usd | platform-native meaning |
| holders | platform-native meaning |
| shares_held | platform-native meaning |
| increased_holders | platform-native meaning |
| increased_shares | platform-native meaning |
| decreased_holders | platform-native meaning |
| decreased_shares | platform-native meaning |
| unchanged_holders | platform-native meaning |
| unchanged_shares | platform-native meaning |
| new_holders | platform-native meaning |
| new_shares | platform-native meaning |
| sold_out_holders | platform-native meaning |
| sold_out_shares | platform-native meaning |
| top_holders | platform-native meaning |
| platform | Source platform identifier, the same as platform in the request (for example xiaohongshu, tiktok). |

## Example

```bash
curl -X POST 'https://api.everyinfra.com/api/v1/social' \
  -H "Authorization: Bearer $EVERYINFRA_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "platform": "yahoo_finance",
  "action": "institutional_holdings",
  "params": {
    "keyword": "AAPL"
  }
}'
```

```python
import os
import requests

response = requests.post(
    "https://api.everyinfra.com/api/v1/social",
    headers={"Authorization": f"Bearer {os.environ['EVERYINFRA_API_KEY']}"},
    json={
        "platform": "yahoo_finance",
        "action": "institutional_holdings",
        "params": {
            "keyword": "AAPL",
        },
    },
    timeout=120,
)
print(response.status_code)
print(response.json())
```

## Response example

No real sample for these example parameters yet: structure only, every value is a placeholder (…).

```text
{
  "id": "req_…",
  "platform": "yahoo_finance",
  "action": "institutional_holdings",
  "results": {
    "symbol": …,
    "institutional_ownership_pct": …,
    "shares_outstanding": …,
    "holdings_value_usd": …,
    "holders": …,
    "shares_held": …,
    "increased_holders": …,
    "increased_shares": …,
    "decreased_holders": …,
    "decreased_shares": …,
    "unchanged_holders": …,
    "unchanged_shares": …,
    "new_holders": …,
    "new_shares": …,
    "sold_out_holders": …,
    "sold_out_shares": …,
    "top_holders": …,
    "platform": …
  },
  "billing": {
    "charged": …,
    "charged_usd": …,
    "balance_after_usd": …,
    …
  },
  "quota": { … }
}
```

## Also

- Capability catalog (no key): https://api.everyinfra.com/api/v1/social/catalog?platform=yahoo_finance
- OpenAPI: https://everyinfra.com/openapi.json · Agents guide: https://everyinfra.com/agents.md