OITracker Cboe delayed data

Contract OI history

Back to BIRK

Jan 15, 2027 EXPIRATION

BIRK $35.00 Call

BIRK270115C00035000

Latest saved OI232Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BIRK $35.00 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. 2391190 2026-10-02: 201 OI2026-10-05: 203 OI2026-10-06: 201 OI2026-10-07: 199 OI2026-10-08: 199 OI2026-10-09: 209 OI2026-10-13: 214 OI2026-10-14: 214 OI2026-10-15: 214 OI2026-10-16: 239 OI2026-10-20: 231 OI2026-10-23: 232 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BIRK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing232+1
Oct 20, 2026231-8
Oct 16, 2026239+25
Oct 15, 20262140
Oct 14, 20262140
Oct 13, 2026214+5
Oct 09, 2026209+10
Oct 08, 20261990
Oct 07, 2026199-2
Oct 06, 2026201-2
Oct 05, 2026203+2
Oct 02, 2026201No prior observation