Symbol volatility

GET/v1/symbols/{symbol}/volatilityPromised whole

Annualised volatility, and how it moved through the window.

Parameters

symbolpathrequired
Ticker symbol, case-insensitive.

Response contract

Every field in the response is part of the contract.

Response fields

The top level keys a live response actually returned, read off the API rather than written down here.

symbolewmaVolSeriesrealizedVolSeriesannualizedVolatility

How this was verified

Called against 3 different subjects on the live API. Every field it returned, at every level, was compared with the contract above. Last checked August 18, 2026.

Request

curl "https://api.massari.ai/v1/symbols/AAPL/volatility" \
  -H "Authorization: Bearer $MASSARI_TOKEN"

Example response

{
  "symbol": "AAPL",
  "ewmaVolSeries": [
    {
      "date": "1993-02-01",
      "value": 46.591846987301075
    },
    {
      "date": "1993-02-02",
      "value": 45.62690128123495
    }
  ],
  "realizedVolSeries": [
    {
      "date": "1993-03-02",
      "value": 28.219574107834504
    },
    {
      "date": "1993-03-03",
      "value": 25.9384334529969
    }
  ],
  "annualizedVolatility": 42.058034081148456
}

A real response from the live API, captured August 18, 2026. This one is CUT: long arrays, wide objects and long strings were trimmed to keep it readable, so treat it as a sample of the shape rather than all of it. Either way it is valid JSON.