OITracker Cboe delayed data

Contract OI history

Back to B

Dec 18, 2026 EXPIRATION

B $39.00 Call

B261218C00039000

Latest saved OI577Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $39.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6903450 2026-10-02: 385 OI2026-10-05: 387 OI2026-10-06: 387 OI2026-10-07: 387 OI2026-10-08: 413 OI2026-10-09: 439 OI2026-10-13: 442 OI2026-10-14: 442 OI2026-10-15: 690 OI2026-10-16: 575 OI2026-10-21: 575 OI2026-10-23: 577 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, 2026Viewing577+2
Oct 21, 20265750
Oct 16, 2026575-115
Oct 15, 2026690+248
Oct 14, 20264420
Oct 13, 2026442+3
Oct 09, 2026439+26
Oct 08, 2026413+26
Oct 07, 20263870
Oct 06, 20263870
Oct 05, 2026387+2
Oct 02, 2026385No prior observation