OITracker Cboe delayed data

Contract OI history

Back to B

Nov 20, 2026 EXPIRATION

B $45.00 Put

B261120P00045000

Latest saved OI57Oct 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 $45.00 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. 75370 2026-10-02: 42 OI2026-10-05: 42 OI2026-10-06: 42 OI2026-10-07: 42 OI2026-10-08: 42 OI2026-10-09: 42 OI2026-10-13: 72 OI2026-10-14: 75 OI2026-10-15: 75 OI2026-10-16: 75 OI2026-10-21: 57 OI2026-10-23: 57 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, 2026Viewing570
Oct 21, 202657-18
Oct 16, 2026750
Oct 15, 2026750
Oct 14, 202675+3
Oct 13, 202672+30
Oct 09, 2026420
Oct 08, 2026420
Oct 07, 2026420
Oct 06, 2026420
Oct 05, 2026420
Oct 02, 202642No prior observation