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Contract OI history

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Jan 21, 2028 EXPIRATION

BLSH $50.00 Call

BLSH280121C00050000

Latest saved OI559Oct 23, 2026
Last change+1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $50.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5592790 2026-10-02: 455 OI2026-10-05: 450 OI2026-10-06: 450 OI2026-10-07: 451 OI2026-10-08: 451 OI2026-10-09: 451 OI2026-10-13: 453 OI2026-10-14: 454 OI2026-10-16: 461 OI2026-10-20: 558 OI2026-10-23: 559 OI Oct 02, 2026Oct 23, 2026

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

BLSH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing559+1
Oct 20, 2026558+97
Oct 16, 2026461+7
Oct 14, 2026454+1
Oct 13, 2026453+2
Oct 09, 20264510
Oct 08, 20264510
Oct 07, 2026451+1
Oct 06, 20264500
Oct 05, 2026450-5
Oct 02, 2026455No prior observation