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Contract OI history

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Nov 20, 2026 EXPIRATION

ALK $37.50 Call

ALK261120C00037500

Latest saved OI1,439Oct 23, 2026
Last change-377vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $37.50 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. 1,8169080 2026-10-02: 54 OI2026-10-05: 54 OI2026-10-06: 54 OI2026-10-07: 59 OI2026-10-08: 59 OI2026-10-09: 59 OI2026-10-13: 59 OI2026-10-14: 129 OI2026-10-15: 325 OI2026-10-16: 334 OI2026-10-21: 1,816 OI2026-10-23: 1,439 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, 2026Viewing1,439-377
Oct 21, 20261,816+1,482
Oct 16, 2026334+9
Oct 15, 2026325+196
Oct 14, 2026129+70
Oct 13, 2026590
Oct 09, 2026590
Oct 08, 2026590
Oct 07, 202659+5
Oct 06, 2026540
Oct 05, 2026540
Oct 02, 202654No prior observation