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Contract OI history

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Apr 16, 2027 EXPIRATION

BIRK $40.00 Call

BIRK270416C00040000

Latest saved OI1,031Oct 23, 2026
Last change+8vs 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. 1,0315150 2026-10-02: 1,023 OI2026-10-05: 1,023 OI2026-10-06: 1,023 OI2026-10-07: 1,023 OI2026-10-08: 1,023 OI2026-10-09: 1,023 OI2026-10-13: 1,023 OI2026-10-14: 1,023 OI2026-10-15: 1,023 OI2026-10-16: 1,023 OI2026-10-20: 1,023 OI2026-10-23: 1,031 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, 2026Viewing1,031+8
Oct 20, 20261,0230
Oct 16, 20261,0230
Oct 15, 20261,0230
Oct 14, 20261,0230
Oct 13, 20261,0230
Oct 09, 20261,0230
Oct 08, 20261,0230
Oct 07, 20261,0230
Oct 06, 20261,0230
Oct 05, 20261,0230
Oct 02, 20261,023No prior observation