OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BW $12.50 Put

BW261120P00012500

Latest saved OI0Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BW $12.50 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. 2481240 2026-10-02: 248 OI2026-10-05: 248 OI2026-10-06: 248 OI2026-10-07: 243 OI2026-10-08: 243 OI2026-10-09: 243 OI2026-10-13: 0 OI2026-10-14: 0 OI2026-10-15: 0 OI2026-10-16: 0 OI2026-10-20: 0 OI2026-10-23: 0 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, 2026Viewing00
Oct 20, 202600
Oct 16, 202600
Oct 15, 202600
Oct 14, 202600
Oct 13, 20260-243
Oct 09, 20262430
Oct 08, 20262430
Oct 07, 2026243-5
Oct 06, 20262480
Oct 05, 20262480
Oct 02, 2026248No prior observation