OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

BW $10.00 Put

BW280121P00010000

Latest saved OI278Oct 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 $10.00 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. 2841420 2026-10-02: 277 OI2026-10-05: 277 OI2026-10-06: 277 OI2026-10-07: 278 OI2026-10-08: 279 OI2026-10-09: 279 OI2026-10-13: 284 OI2026-10-14: 284 OI2026-10-15: 284 OI2026-10-16: 284 OI2026-10-20: 278 OI2026-10-23: 278 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, 2026Viewing2780
Oct 20, 2026278-6
Oct 16, 20262840
Oct 15, 20262840
Oct 14, 20262840
Oct 13, 2026284+5
Oct 09, 20262790
Oct 08, 2026279+1
Oct 07, 2026278+1
Oct 06, 20262770
Oct 05, 20262770
Oct 02, 2026277No prior observation