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Contract OI history

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Dec 18, 2026 EXPIRATION

ALK $55.00 Put

ALK261218P00055000

Latest saved OI10Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $55.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 91450 2026-10-02: 91 OI2026-10-05: 91 OI2026-10-06: 91 OI2026-10-07: 91 OI2026-10-08: 91 OI2026-10-09: 91 OI2026-10-13: 91 OI2026-10-14: 71 OI2026-10-15: 10 OI2026-10-16: 10 OI2026-10-21: 10 OI2026-10-23: 10 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, 2026Viewing100
Oct 21, 2026100
Oct 16, 2026100
Oct 15, 202610-61
Oct 14, 202671-20
Oct 13, 2026910
Oct 09, 2026910
Oct 08, 2026910
Oct 07, 2026910
Oct 06, 2026910
Oct 05, 2026910
Oct 02, 202691No prior observation