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Contract OI history

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Jan 21, 2028 EXPIRATION

BTBT $3.50 Call

BTBT280121C00003500

Latest saved OI1,625Oct 23, 2026
Last change+27vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BTBT $3.50 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. 1,6258120 2026-10-09: 1,430 OI2026-10-13: 1,549 OI2026-10-14: 1,549 OI2026-10-15: 1,550 OI2026-10-16: 1,557 OI2026-10-21: 1,598 OI2026-10-23: 1,625 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, 2026Viewing1,625+27
Oct 21, 20261,598+41
Oct 16, 20261,557+7
Oct 15, 20261,550+1
Oct 14, 20261,5490
Oct 13, 20261,549+119
Oct 09, 20261,430No prior observation