OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BW $7.50 Put

BW261120P00007500

Latest saved OI1,138Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BW $7.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,1435710 2026-10-02: 1,142 OI2026-10-05: 1,142 OI2026-10-06: 1,142 OI2026-10-07: 1,142 OI2026-10-08: 1,142 OI2026-10-09: 1,142 OI2026-10-13: 1,142 OI2026-10-14: 1,142 OI2026-10-15: 1,143 OI2026-10-16: 1,140 OI2026-10-20: 1,139 OI2026-10-23: 1,138 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BW contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,138-1
Oct 20, 20261,139-1
Oct 16, 20261,140-3
Oct 15, 20261,143+1
Oct 14, 20261,1420
Oct 13, 20261,1420
Oct 09, 20261,1420
Oct 08, 20261,1420
Oct 07, 20261,1420
Oct 06, 20261,1420
Oct 05, 20261,1420
Oct 02, 20261,142No prior observation