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Contract OI history

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Dec 18, 2026 EXPIRATION

ALK $32.50 Put

ALK261218P00032500

Latest saved OI1,370Oct 23, 2026
Last change+64vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $32.50 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. 1,3706850 2026-10-02: 1,283 OI2026-10-05: 1,286 OI2026-10-06: 1,286 OI2026-10-07: 1,288 OI2026-10-08: 1,293 OI2026-10-09: 1,294 OI2026-10-13: 1,292 OI2026-10-14: 1,273 OI2026-10-15: 1,315 OI2026-10-16: 1,319 OI2026-10-21: 1,306 OI2026-10-23: 1,370 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, 2026Viewing1,370+64
Oct 21, 20261,306-13
Oct 16, 20261,319+4
Oct 15, 20261,315+42
Oct 14, 20261,273-19
Oct 13, 20261,292-2
Oct 09, 20261,294+1
Oct 08, 20261,293+5
Oct 07, 20261,288+2
Oct 06, 20261,2860
Oct 05, 20261,286+3
Oct 02, 20261,283No prior observation