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Contract OI history

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Feb 19, 2027 EXPIRATION

BTBT $1.50 Put

BTBT270219P00001500

Latest saved OI419Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BTBT $1.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4192090 2026-10-09: 398 OI2026-10-13: 398 OI2026-10-14: 398 OI2026-10-15: 419 OI2026-10-16: 419 OI2026-10-21: 419 OI2026-10-23: 419 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BTBT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4190
Oct 21, 20264190
Oct 16, 20264190
Oct 15, 2026419+21
Oct 14, 20263980
Oct 13, 20263980
Oct 09, 2026398No prior observation