OITracker Cboe delayed data

Contract OI history

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Nov 06, 2026 EXPIRATION

B $30.00 Put

B261106P00030000

Latest saved OI6Oct 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 $30.00 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. 730 2026-10-02: 0 OI2026-10-05: 2 OI2026-10-06: 2 OI2026-10-07: 3 OI2026-10-08: 4 OI2026-10-09: 4 OI2026-10-13: 5 OI2026-10-14: 7 OI2026-10-15: 7 OI2026-10-16: 7 OI2026-10-21: 6 OI2026-10-23: 6 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, 2026Viewing60
Oct 21, 20266-1
Oct 16, 202670
Oct 15, 202670
Oct 14, 20267+2
Oct 13, 20265+1
Oct 09, 202640
Oct 08, 20264+1
Oct 07, 20263+1
Oct 06, 202620
Oct 05, 20262+2
Oct 02, 20260No prior observation