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Contract OI history

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May 21, 2027 EXPIRATION

BTBT $3.50 Call

BTBT270521C00003500

Latest saved OI4,647Oct 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 $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. 4,7382,3690 2026-10-09: 4,595 OI2026-10-13: 4,718 OI2026-10-14: 4,718 OI2026-10-15: 4,738 OI2026-10-16: 4,738 OI2026-10-21: 4,647 OI2026-10-23: 4,647 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, 2026Viewing4,6470
Oct 21, 20264,647-91
Oct 16, 20264,7380
Oct 15, 20264,738+20
Oct 14, 20264,7180
Oct 13, 20264,718+123
Oct 09, 20264,595No prior observation