OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BWMN $40.00 Put

BWMN261120P00040000

Latest saved OI12Oct 23, 2026
Last change+2vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BWMN $40.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1260 2026-10-09: 2 OI2026-10-13: 8 OI2026-10-14: 8 OI2026-10-16: 10 OI2026-10-20: 10 OI2026-10-23: 12 OI Oct 09, 2026Oct 23, 2026

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

BWMN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing12+2
Oct 20, 2026100
Oct 16, 202610+2
Oct 14, 202680
Oct 13, 20268+6
Oct 09, 20262No prior observation