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Contract OI history

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Nov 13, 2026 EXPIRATION

BLSH $28.00 Put

BLSH261113P00028000

Latest saved OI204Oct 23, 2026
Last change+35vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $28.00 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. 2041020 2026-10-02: 0 OI2026-10-05: 103 OI2026-10-06: 103 OI2026-10-07: 103 OI2026-10-08: 104 OI2026-10-09: 104 OI2026-10-13: 104 OI2026-10-14: 104 OI2026-10-16: 107 OI2026-10-20: 169 OI2026-10-23: 204 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, 2026Viewing204+35
Oct 20, 2026169+62
Oct 16, 2026107+3
Oct 14, 20261040
Oct 13, 20261040
Oct 09, 20261040
Oct 08, 2026104+1
Oct 07, 20261030
Oct 06, 20261030
Oct 05, 2026103+103
Oct 02, 20260No prior observation