A market state, its historical analogs, and what followed

Supply a stock symbol and optionally a completed session (YYYY-MM-DD). Omit date for the latest built session, not a real-time quote. Returns the state, tape, historical analog sample, outcome ranges, and comparable historical state transitions across stocks in one call. Preserve status, sample sizes, dates, and informative receipts. Excess-return ranges are empirical observations in percentage points relative to a date-matched liquid-stock baseline; they are not automatically calibrated forecasts. Empty or weak evidence is not a directional signal. Advanced lane options remain compatibility-only.