OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

BW $20.00 Call

BW280121C00020000

Latest saved OI778Oct 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 $20.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7783890 2026-10-02: 754 OI2026-10-05: 744 OI2026-10-06: 744 OI2026-10-07: 744 OI2026-10-08: 744 OI2026-10-09: 744 OI2026-10-13: 758 OI2026-10-14: 758 OI2026-10-15: 758 OI2026-10-16: 758 OI2026-10-20: 778 OI2026-10-23: 778 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, 2026Viewing7780
Oct 20, 2026778+20
Oct 16, 20267580
Oct 15, 20267580
Oct 14, 20267580
Oct 13, 2026758+14
Oct 09, 20267440
Oct 08, 20267440
Oct 07, 20267440
Oct 06, 20267440
Oct 05, 2026744-10
Oct 02, 2026754No prior observation