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Contract OI history

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Nov 20, 2026 EXPIRATION

BLSH $35.00 Put

BLSH261120P00035000

Latest saved OI1,140Oct 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. 1,1405700 2026-10-02: 1,130 OI2026-10-05: 1,131 OI2026-10-06: 1,134 OI2026-10-07: 1,134 OI2026-10-08: 1,134 OI2026-10-09: 1,134 OI2026-10-13: 1,132 OI2026-10-14: 1,133 OI2026-10-16: 1,133 OI2026-10-20: 1,140 OI2026-10-23: 1,140 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, 2026Viewing1,1400
Oct 20, 20261,140+7
Oct 16, 20261,1330
Oct 14, 20261,133+1
Oct 13, 20261,132-2
Oct 09, 20261,1340
Oct 08, 20261,1340
Oct 07, 20261,1340
Oct 06, 20261,134+3
Oct 05, 20261,131+1
Oct 02, 20261,130No prior observation