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Contract OI history

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Jan 21, 2028 EXPIRATION

BLSH $20.00 Call

BLSH280121C00020000

Latest saved OI202Oct 23, 2026
Last change+2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $20.00 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. 2021010 2026-10-02: 192 OI2026-10-05: 192 OI2026-10-06: 192 OI2026-10-07: 192 OI2026-10-08: 194 OI2026-10-09: 194 OI2026-10-13: 194 OI2026-10-14: 194 OI2026-10-16: 196 OI2026-10-20: 200 OI2026-10-23: 202 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, 2026Viewing202+2
Oct 20, 2026200+4
Oct 16, 2026196+2
Oct 14, 20261940
Oct 13, 20261940
Oct 09, 20261940
Oct 08, 2026194+2
Oct 07, 20261920
Oct 06, 20261920
Oct 05, 20261920
Oct 02, 2026192No prior observation