OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

BW $2.50 Put

BW280121P00002500

Latest saved OI736Oct 23, 2026
Last change+28vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BW $2.50 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. 7363680 2026-10-02: 692 OI2026-10-05: 692 OI2026-10-06: 692 OI2026-10-07: 692 OI2026-10-08: 692 OI2026-10-09: 696 OI2026-10-13: 704 OI2026-10-14: 704 OI2026-10-15: 704 OI2026-10-16: 706 OI2026-10-20: 708 OI2026-10-23: 736 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, 2026Viewing736+28
Oct 20, 2026708+2
Oct 16, 2026706+2
Oct 15, 20267040
Oct 14, 20267040
Oct 13, 2026704+8
Oct 09, 2026696+4
Oct 08, 20266920
Oct 07, 20266920
Oct 06, 20266920
Oct 05, 20266920
Oct 02, 2026692No prior observation