OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

ASC $20.00 Put

ASC261120P00020000

Latest saved OI513Oct 21, 2026
Last change+1vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ASC $20.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 5142570 2026-10-02: 512 OI2026-10-05: 512 OI2026-10-06: 512 OI2026-10-07: 512 OI2026-10-08: 514 OI2026-10-09: 514 OI2026-10-13: 514 OI2026-10-14: 512 OI2026-10-16: 512 OI2026-10-21: 513 OI Oct 02, 2026Oct 21, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ASC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing513+1
Oct 16, 20265120
Oct 14, 2026512-2
Oct 13, 20265140
Oct 09, 20265140
Oct 08, 2026514+2
Oct 07, 20265120
Oct 06, 20265120
Oct 05, 20265120
Oct 02, 2026512No prior observation