OITracker Cboe delayed data

Contract OI history

Back to BIRK

Jan 15, 2027 EXPIRATION

BIRK $40.00 Call

BIRK270115C00040000

Latest saved OI537Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BIRK $40.00 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. 5372680 2026-10-02: 505 OI2026-10-05: 505 OI2026-10-06: 505 OI2026-10-07: 505 OI2026-10-08: 505 OI2026-10-09: 505 OI2026-10-13: 505 OI2026-10-14: 505 OI2026-10-15: 505 OI2026-10-16: 527 OI2026-10-20: 527 OI2026-10-23: 537 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, 2026Viewing537+10
Oct 20, 20265270
Oct 16, 2026527+22
Oct 15, 20265050
Oct 14, 20265050
Oct 13, 20265050
Oct 09, 20265050
Oct 08, 20265050
Oct 07, 20265050
Oct 06, 20265050
Oct 05, 20265050
Oct 02, 2026505No prior observation