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Contract OI history

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Jan 15, 2027 EXPIRATION

BLSH $35.00 Put

BLSH270115P00035000

Latest saved OI368Oct 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 $35.00 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. 3681840 2026-10-02: 255 OI2026-10-05: 255 OI2026-10-06: 257 OI2026-10-07: 257 OI2026-10-08: 257 OI2026-10-09: 257 OI2026-10-13: 264 OI2026-10-14: 283 OI2026-10-16: 276 OI2026-10-20: 368 OI2026-10-23: 368 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, 2026Viewing3680
Oct 20, 2026368+92
Oct 16, 2026276-7
Oct 14, 2026283+19
Oct 13, 2026264+7
Oct 09, 20262570
Oct 08, 20262570
Oct 07, 20262570
Oct 06, 2026257+2
Oct 05, 20262550
Oct 02, 2026255No prior observation