OITracker Cboe delayed data

Contract OI history

Back to B

Jan 15, 2027 EXPIRATION

B $50.00 Put

B270115P00050000

Latest saved OI485Oct 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 $50.00 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. 4872430 2026-10-02: 473 OI2026-10-05: 473 OI2026-10-06: 473 OI2026-10-07: 473 OI2026-10-08: 487 OI2026-10-09: 487 OI2026-10-13: 487 OI2026-10-14: 487 OI2026-10-15: 487 OI2026-10-16: 487 OI2026-10-21: 485 OI2026-10-23: 485 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, 2026Viewing4850
Oct 21, 2026485-2
Oct 16, 20264870
Oct 15, 20264870
Oct 14, 20264870
Oct 13, 20264870
Oct 09, 20264870
Oct 08, 2026487+14
Oct 07, 20264730
Oct 06, 20264730
Oct 05, 20264730
Oct 02, 2026473No prior observation