Symbol information ratio

GET/v1/symbols/{symbol}/information-ratioPromised whole

Return above the benchmark per unit of the drift it took to get there.

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.

symbolactiveReturntrackingErrorinformationRatio

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/information-ratio" \
  -H "Authorization: Bearer $MASSARI_TOKEN"

Example response

{
  "symbol": "AAPL",
  "activeReturn": 16.560884734639213,
  "trackingError": 36.779510143934225,
  "informationRatio": 0.4502747499852301
}

A real response from the live API, captured August 18, 2026. Nothing was dropped, so this is the whole shape. Either way it is valid JSON.