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Contract OI history

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Nov 20, 2026 EXPIRATION

ALK $42.50 Call

ALK261120C00042500

Latest saved OI626Oct 23, 2026
Last change+16vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $42.50 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. 6263130 2026-10-02: 137 OI2026-10-05: 279 OI2026-10-06: 279 OI2026-10-07: 288 OI2026-10-08: 290 OI2026-10-09: 307 OI2026-10-13: 311 OI2026-10-14: 328 OI2026-10-15: 332 OI2026-10-16: 337 OI2026-10-21: 610 OI2026-10-23: 626 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, 2026Viewing626+16
Oct 21, 2026610+273
Oct 16, 2026337+5
Oct 15, 2026332+4
Oct 14, 2026328+17
Oct 13, 2026311+4
Oct 09, 2026307+17
Oct 08, 2026290+2
Oct 07, 2026288+9
Oct 06, 20262790
Oct 05, 2026279+142
Oct 02, 2026137No prior observation