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Contract OI history

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Nov 20, 2026 EXPIRATION

BLSH $30.00 Put

BLSH261120P00030000

Latest saved OI412Oct 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. 4122060 2026-10-02: 67 OI2026-10-05: 70 OI2026-10-06: 71 OI2026-10-07: 71 OI2026-10-08: 94 OI2026-10-09: 378 OI2026-10-13: 379 OI2026-10-14: 379 OI2026-10-16: 382 OI2026-10-20: 412 OI2026-10-23: 412 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, 2026Viewing4120
Oct 20, 2026412+30
Oct 16, 2026382+3
Oct 14, 20263790
Oct 13, 2026379+1
Oct 09, 2026378+284
Oct 08, 202694+23
Oct 07, 2026710
Oct 06, 202671+1
Oct 05, 202670+3
Oct 02, 202667No prior observation