Get point-in-time float history
Get the point-in-time float history for a company — one sample per ET trade date (float shares, shares outstanding, and the source the float came from).
Unlike the latest-only /companies/{ticker}/float, this shows how float changed over time (e.g. across a dilution event).
This series is forward-only. It began accumulating in mid-2026 and is NOT backfilled, so an empty rows array is a normal result for a ticker with no samples yet — not an error and not a delisted company.
source is one of polygon, computed, sec_10k, fmp. Float quality varies by provider, so weigh rows accordingly rather than treating every source as equivalent.
Credit cost: 3
Request
- Base URL: https://api.signal8.ai/api/v1/public
- URL: https://api.signal8.ai/api/v1/public/companies/{ticker}/float-history
- Auth: API key in header X-Api-Key
Path parameters
Company ticker symbol (1-5 letters, case-insensitive)
Query parameters
Lookback window in trade dates. Default 90, clamped to 1-730.
Response
Point-in-time float history, ascending by date
Changes
No recorded changes to this operation across all 1 revision of this API.