OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BW $5.00 Put

BW261120P00005000

Latest saved OI4,044Oct 23, 2026
Last change+108vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BW $5.00 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. 4,0442,0220 2026-10-02: 3,257 OI2026-10-05: 3,336 OI2026-10-06: 3,359 OI2026-10-07: 3,363 OI2026-10-08: 3,393 OI2026-10-09: 3,394 OI2026-10-13: 3,909 OI2026-10-14: 3,909 OI2026-10-15: 3,917 OI2026-10-16: 3,918 OI2026-10-20: 3,936 OI2026-10-23: 4,044 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, 2026Viewing4,044+108
Oct 20, 20263,936+18
Oct 16, 20263,918+1
Oct 15, 20263,917+8
Oct 14, 20263,9090
Oct 13, 20263,909+515
Oct 09, 20263,394+1
Oct 08, 20263,393+30
Oct 07, 20263,363+4
Oct 06, 20263,359+23
Oct 05, 20263,336+79
Oct 02, 20263,257No prior observation