OITracker Cboe delayed data

Contract OI history

Back to B

Mar 19, 2027 EXPIRATION

B $32.00 Put

B270319P00032000

Latest saved OI379Oct 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 $32.00 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. 3791890 2026-10-02: 360 OI2026-10-05: 375 OI2026-10-06: 375 OI2026-10-07: 378 OI2026-10-08: 378 OI2026-10-09: 378 OI2026-10-13: 378 OI2026-10-14: 378 OI2026-10-15: 378 OI2026-10-16: 379 OI2026-10-21: 379 OI2026-10-23: 379 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, 2026Viewing3790
Oct 21, 20263790
Oct 16, 2026379+1
Oct 15, 20263780
Oct 14, 20263780
Oct 13, 20263780
Oct 09, 20263780
Oct 08, 20263780
Oct 07, 2026378+3
Oct 06, 20263750
Oct 05, 2026375+15
Oct 02, 2026360No prior observation