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Contract OI history

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Oct 23, 2026 EXPIRATION

BLSH $31.00 Put

BLSH261023P00031000

Latest saved OI121Oct 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 $31.00 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. 3111550 2026-10-02: 305 OI2026-10-05: 309 OI2026-10-06: 309 OI2026-10-07: 311 OI2026-10-08: 311 OI2026-10-09: 124 OI2026-10-13: 124 OI2026-10-14: 124 OI2026-10-16: 121 OI2026-10-20: 121 OI2026-10-23: 121 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, 2026Viewing1210
Oct 20, 20261210
Oct 16, 2026121-3
Oct 14, 20261240
Oct 13, 20261240
Oct 09, 2026124-187
Oct 08, 20263110
Oct 07, 2026311+2
Oct 06, 20263090
Oct 05, 2026309+4
Oct 02, 2026305No prior observation