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Contract OI history

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Jan 21, 2028 EXPIRATION

BIRK $30.00 Call

BIRK280121C00030000

Latest saved OI1,735Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BIRK $30.00 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. 1,7638810 2026-10-02: 1,763 OI2026-10-05: 1,763 OI2026-10-06: 1,763 OI2026-10-07: 1,763 OI2026-10-08: 1,763 OI2026-10-09: 1,761 OI2026-10-13: 1,761 OI2026-10-14: 1,761 OI2026-10-15: 1,761 OI2026-10-16: 1,761 OI2026-10-20: 1,735 OI2026-10-23: 1,735 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, 2026Viewing1,7350
Oct 20, 20261,735-26
Oct 16, 20261,7610
Oct 15, 20261,7610
Oct 14, 20261,7610
Oct 13, 20261,7610
Oct 09, 20261,761-2
Oct 08, 20261,7630
Oct 07, 20261,7630
Oct 06, 20261,7630
Oct 05, 20261,7630
Oct 02, 20261,763No prior observation