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Contract OI history

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Jan 21, 2028 EXPIRATION

BKKT $40.00 Call

BKKT280121C00040000

Latest saved OI211Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BKKT $40.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 2111050 2026-10-02: 211 OI2026-10-05: 211 OI2026-10-06: 211 OI2026-10-07: 211 OI2026-10-08: 211 OI2026-10-09: 211 OI2026-10-13: 211 OI2026-10-14: 211 OI2026-10-16: 211 OI2026-10-20: 211 OI Oct 02, 2026Oct 20, 2026

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

BKKT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing2110
Oct 16, 20262110
Oct 14, 20262110
Oct 13, 20262110
Oct 09, 20262110
Oct 08, 20262110
Oct 07, 20262110
Oct 06, 20262110
Oct 05, 20262110
Oct 02, 2026211No prior observation