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Contract OI history

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Jan 21, 2028 EXPIRATION

BTDR $15.00 Put

BTDR280121P00015000

Latest saved OI443Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BTDR $15.00 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. 4432210 2026-10-09: 422 OI2026-10-13: 428 OI2026-10-14: 428 OI2026-10-15: 428 OI2026-10-16: 428 OI2026-10-21: 440 OI2026-10-23: 443 OI Oct 09, 2026Oct 23, 2026

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

BTDR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing443+3
Oct 21, 2026440+12
Oct 16, 20264280
Oct 15, 20264280
Oct 14, 20264280
Oct 13, 2026428+6
Oct 09, 2026422No prior observation