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Contract OI history

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Dec 18, 2026 EXPIRATION

ALK $40.00 Call

ALK261218C00040000

Latest saved OI288Oct 23, 2026
Last change+21vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $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. 2881440 2026-10-02: 150 OI2026-10-05: 154 OI2026-10-06: 154 OI2026-10-07: 153 OI2026-10-08: 153 OI2026-10-09: 164 OI2026-10-13: 166 OI2026-10-14: 171 OI2026-10-15: 178 OI2026-10-16: 189 OI2026-10-21: 267 OI2026-10-23: 288 OI Oct 02, 2026Oct 23, 2026

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

ALK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing288+21
Oct 21, 2026267+78
Oct 16, 2026189+11
Oct 15, 2026178+7
Oct 14, 2026171+5
Oct 13, 2026166+2
Oct 09, 2026164+11
Oct 08, 20261530
Oct 07, 2026153-1
Oct 06, 20261540
Oct 05, 2026154+4
Oct 02, 2026150No prior observation