OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

B $36.00 Put

B261023P00036000

Latest saved OI138Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $36.00 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. 138690 2026-10-02: 133 OI2026-10-05: 133 OI2026-10-06: 133 OI2026-10-07: 134 OI2026-10-08: 134 OI2026-10-09: 134 OI2026-10-13: 135 OI2026-10-14: 135 OI2026-10-15: 137 OI2026-10-16: 137 OI2026-10-21: 138 OI2026-10-23: 138 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1380
Oct 21, 2026138+1
Oct 16, 20261370
Oct 15, 2026137+2
Oct 14, 20261350
Oct 13, 2026135+1
Oct 09, 20261340
Oct 08, 20261340
Oct 07, 2026134+1
Oct 06, 20261330
Oct 05, 20261330
Oct 02, 2026133No prior observation