CFTC Commitments of Traders (COT) — weekly futures positioning for a market (free/keyless). Match a market by name (e.g. 'E-MINI S&P', 'GOLD', 'CRUDE OIL', 'BITCOIN'). Each weekly report: open interest, large speculators (non-commercial) long/short/spread, commercials (hedgers) long/short, small (non-reportable) traders, and week-over-week changes. For positioning/sentiment analysis.