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Contract OI history

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Dec 18, 2026 EXPIRATION

ALK $35.00 Put

ALK261218P00035000

Latest saved OI429Oct 23, 2026
Last change+80vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $35.00 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. 4292140 2026-10-02: 238 OI2026-10-05: 238 OI2026-10-06: 238 OI2026-10-07: 237 OI2026-10-08: 252 OI2026-10-09: 256 OI2026-10-13: 258 OI2026-10-14: 283 OI2026-10-15: 295 OI2026-10-16: 295 OI2026-10-21: 349 OI2026-10-23: 429 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, 2026Viewing429+80
Oct 21, 2026349+54
Oct 16, 20262950
Oct 15, 2026295+12
Oct 14, 2026283+25
Oct 13, 2026258+2
Oct 09, 2026256+4
Oct 08, 2026252+15
Oct 07, 2026237-1
Oct 06, 20262380
Oct 05, 20262380
Oct 02, 2026238No prior observation