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Contract OI history

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May 21, 2027 EXPIRATION

BTBT $2.50 Call

BTBT270521C00002500

Latest saved OI634Oct 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
BTBT $2.50 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. 6373180 2026-10-09: 13 OI2026-10-13: 62 OI2026-10-14: 62 OI2026-10-15: 92 OI2026-10-16: 636 OI2026-10-21: 637 OI2026-10-23: 634 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, 2026Viewing634-3
Oct 21, 2026637+1
Oct 16, 2026636+544
Oct 15, 202692+30
Oct 14, 2026620
Oct 13, 202662+49
Oct 09, 202613No prior observation