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Contract OI history

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Dec 18, 2026 EXPIRATION

BTDR $21.00 Call

BTDR261218C00021000

Latest saved OI3,449Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BTDR $21.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3,4491,7240 2026-10-09: 2,439 OI2026-10-13: 2,439 OI2026-10-14: 2,439 OI2026-10-15: 3,449 OI2026-10-16: 3,449 OI2026-10-21: 3,449 OI2026-10-23: 3,449 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, 2026Viewing3,4490
Oct 21, 20263,4490
Oct 16, 20263,4490
Oct 15, 20263,449+1,010
Oct 14, 20262,4390
Oct 13, 20262,4390
Oct 09, 20262,439No prior observation