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Contract OI history

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Jan 21, 2028 EXPIRATION

BLSH $30.00 Put

BLSH280121P00030000

Latest saved OI447Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $30.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4472230 2026-10-02: 313 OI2026-10-05: 313 OI2026-10-06: 313 OI2026-10-07: 313 OI2026-10-08: 447 OI2026-10-09: 447 OI2026-10-13: 447 OI2026-10-14: 447 OI2026-10-16: 447 OI2026-10-20: 447 OI2026-10-23: 447 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, 2026Viewing4470
Oct 20, 20264470
Oct 16, 20264470
Oct 14, 20264470
Oct 13, 20264470
Oct 09, 20264470
Oct 08, 2026447+134
Oct 07, 20263130
Oct 06, 20263130
Oct 05, 20263130
Oct 02, 2026313No prior observation