Hurst, efficiency ratio and regime for one instrument

Codefragmenten

curl "https://api.oanor.com/hurst-api/v1/asset" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/hurst-api/v1/asset", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/hurst-api/v1/asset");
curl_setopt($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/hurst-api/v1/asset",
    headers={"x-oanor-key": "oanor_test_..."}
)

Voorbeeldrespons

Een echte respons van dit endpoint, vastgelegd bij de laatste health check.

{
    "data": {
        "name": "S&P 500",
        "note": "Hurst exponent via rescaled-range (R/S) analysis on log returns over window_days; efficiency ratio = net change / total path travelled on the close series. Hurst > 0.5 trends, < 0.5 mean-reverts. Read fresh per call, nothing cached.",
        "class": "equity",
        "hurst": 0.532,
        "reads": {
            "hurst": "trending — momentum/trend-following strategies have an edge",
            "efficiency": "noisy, directionless"
        },
        "regime": "trending (mildly persistent)",
        "source": "Yahoo Finance",
        "symbol": "SPY",
        "window_days": 252,
        "observations": 252,
        "efficiency_ratio": 0.138
    },
    "meta": {
        "timestamp": "2026-06-12T10:34:47.870Z",
        "request_id": "bb4595ae-bcbd-4861-9167-719c446c1018"
    },
    "status": "ok",
    "message": "Asset Hurst retrieved successfully",
    "success": true
}