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Contract OI history

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Dec 18, 2026 EXPIRATION

BLSH $30.00 Call

BLSH261218C00030000

Latest saved OI535Oct 23, 2026
Last change+27vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $30.00 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. 5352670 2026-10-02: 487 OI2026-10-05: 491 OI2026-10-06: 496 OI2026-10-07: 495 OI2026-10-08: 498 OI2026-10-09: 499 OI2026-10-13: 499 OI2026-10-14: 499 OI2026-10-16: 497 OI2026-10-20: 508 OI2026-10-23: 535 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, 2026Viewing535+27
Oct 20, 2026508+11
Oct 16, 2026497-2
Oct 14, 20264990
Oct 13, 20264990
Oct 09, 2026499+1
Oct 08, 2026498+3
Oct 07, 2026495-1
Oct 06, 2026496+5
Oct 05, 2026491+4
Oct 02, 2026487No prior observation