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GET /v1/screener

Rank the universe by beta to a benchmark

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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/betadispersion-api

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Code snippets

curl "https://api.oanor.com/betadispersion-api/v1/screener" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/betadispersion-api/v1/screener", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/betadispersion-api/v1/screener");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/betadispersion-api/v1/screener",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "note": "Assets ranked by beta to SPY over window_days of daily returns. Beta > 1 amplifies the benchmark, < 1 dampens it, < 0 moves against it. correlation/R-squared show how reliable the beta is (a low R-squared beta is noisy). Read fresh per call, nothing cached.",
        "class": "all",
        "count": 21,
        "source": "Yahoo Finance",
        "results": [
            {
                "beta": 2.813,
                "name": "Ethereum",
                "rank": 1,
                "class": "crypto",
                "symbol": "ETH-USD",
                "available": true,
                "r_squared": 0.272,
                "correlation": 0.521,
                "observations": 252,
                "classification": "very high-beta (sharply amplifies)",
                "ann_volatility_pct": 66.49
            },
            {
                "beta": 1.758,
                "name": "Bitcoin",
                "rank": 2,
                "class": "crypto",
                "symbol": "BTC-USD",
                "available": true,
                "r_squared": 0.263,
                "correlation": 0.513,
                "observations": 252,
                "classification": "very high-beta (sharply amplifies)",
                "ann_volatility_pct": 42.23
            },
            {
                "beta": 1.595,
                "name": "Technology",
                "rank": 3,
                "class": "sector",
                "symbol": "XLK",
                "available": true,
                "r_squared": 0.761,
                "correlation": 0.872,
                "observations": 252,
                "classification": "very high-beta (sharply amplifies)",
                "ann_volatility_pct": 22.52
            },
            {
                "beta": 1.582,
                "name": "Silver",
                "rank": 4,
                "class": "commodity",
                "symbol": "SLV",
                "available": true,
                "r_squared": 0.106,
                "correlation": 0.326,
                "observations": 252,
                "classification": "very high-beta (sharply amplifies)",
                "ann_volatility_pct": 59.83
            },
            {
                "beta": 1.364,
                "name": "Emerging Markets",
                "rank": 5,
                "class": "equity",
                "symbol": "EEM",
                "available": true,
                "r_squared": 0.599,
                "correlation": 0.774,
                "observations": 252,
                "classification": "high-beta (amplifies the market)",
                "ann_volatility_pct": 21.71
            },
            {
                "beta": 1.335,
                "name": "US Small Caps",
                "rank": 6,
                "class": "equity",
                "symbol": "IWM",
                "available": true,
                "r_squared": 0.694,
                "correlation": 0.833,
                "observations": 252
…