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Contract OI history

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Dec 18, 2026 EXPIRATION

ALK $42.50 Call

ALK261218C00042500

Latest saved OI2,277Oct 23, 2026
Last change+9vs 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. 2,2771,1380 2026-10-02: 2,237 OI2026-10-05: 2,242 OI2026-10-06: 2,242 OI2026-10-07: 2,252 OI2026-10-08: 2,252 OI2026-10-09: 2,249 OI2026-10-13: 2,250 OI2026-10-14: 2,252 OI2026-10-15: 2,262 OI2026-10-16: 2,264 OI2026-10-21: 2,268 OI2026-10-23: 2,277 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, 2026Viewing2,277+9
Oct 21, 20262,268+4
Oct 16, 20262,264+2
Oct 15, 20262,262+10
Oct 14, 20262,252+2
Oct 13, 20262,250+1
Oct 09, 20262,249-3
Oct 08, 20262,2520
Oct 07, 20262,252+10
Oct 06, 20262,2420
Oct 05, 20262,242+5
Oct 02, 20262,237No prior observation