OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BIRK $32.50 Call

BIRK270115C00032500

Latest saved OI93Oct 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 $32.50 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. 112560 2026-10-02: 108 OI2026-10-05: 108 OI2026-10-06: 107 OI2026-10-07: 112 OI2026-10-08: 112 OI2026-10-09: 104 OI2026-10-13: 103 OI2026-10-14: 103 OI2026-10-15: 98 OI2026-10-16: 98 OI2026-10-20: 92 OI2026-10-23: 93 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, 2026Viewing93+1
Oct 20, 202692-6
Oct 16, 2026980
Oct 15, 202698-5
Oct 14, 20261030
Oct 13, 2026103-1
Oct 09, 2026104-8
Oct 08, 20261120
Oct 07, 2026112+5
Oct 06, 2026107-1
Oct 05, 20261080
Oct 02, 2026108No prior observation