OITracker Cboe delayed data

Contract OI history

Back to B

Oct 23, 2026 EXPIRATION

B $41.00 Call

B261023C00041000

Latest saved OI506Oct 23, 2026
Last change-103vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $41.00 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. 6093040 2026-10-02: 14 OI2026-10-05: 127 OI2026-10-06: 127 OI2026-10-07: 150 OI2026-10-08: 213 OI2026-10-09: 219 OI2026-10-13: 235 OI2026-10-14: 236 OI2026-10-15: 276 OI2026-10-16: 340 OI2026-10-21: 609 OI2026-10-23: 506 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, 2026Viewing506-103
Oct 21, 2026609+269
Oct 16, 2026340+64
Oct 15, 2026276+40
Oct 14, 2026236+1
Oct 13, 2026235+16
Oct 09, 2026219+6
Oct 08, 2026213+63
Oct 07, 2026150+23
Oct 06, 20261270
Oct 05, 2026127+113
Oct 02, 202614No prior observation