OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BW $20.00 Call

BW261120C00020000

Latest saved OI3,567Oct 23, 2026
Last change+1vs 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. 3,5671,7830 2026-10-02: 3,565 OI2026-10-05: 3,565 OI2026-10-06: 3,565 OI2026-10-07: 3,565 OI2026-10-08: 3,565 OI2026-10-09: 3,565 OI2026-10-13: 3,566 OI2026-10-14: 3,566 OI2026-10-15: 3,566 OI2026-10-16: 3,566 OI2026-10-20: 3,566 OI2026-10-23: 3,567 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, 2026Viewing3,567+1
Oct 20, 20263,5660
Oct 16, 20263,5660
Oct 15, 20263,5660
Oct 14, 20263,5660
Oct 13, 20263,566+1
Oct 09, 20263,5650
Oct 08, 20263,5650
Oct 07, 20263,5650
Oct 06, 20263,5650
Oct 05, 20263,5650
Oct 02, 20263,565No prior observation