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Contract OI history

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Mar 19, 2027 EXPIRATION

ALK $42.50 Call

ALK270319C00042500

Latest saved OI1,064Oct 23, 2026
Last change-282vs 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. 1,3466730 2026-10-02: 642 OI2026-10-05: 636 OI2026-10-06: 636 OI2026-10-07: 636 OI2026-10-08: 636 OI2026-10-09: 838 OI2026-10-13: 838 OI2026-10-14: 841 OI2026-10-15: 843 OI2026-10-16: 1,339 OI2026-10-21: 1,346 OI2026-10-23: 1,064 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, 2026Viewing1,064-282
Oct 21, 20261,346+7
Oct 16, 20261,339+496
Oct 15, 2026843+2
Oct 14, 2026841+3
Oct 13, 20268380
Oct 09, 2026838+202
Oct 08, 20266360
Oct 07, 20266360
Oct 06, 20266360
Oct 05, 2026636-6
Oct 02, 2026642No prior observation