OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

ASST $18.00 Put

ASST261120P00018000

Latest saved OI470Oct 23, 2026
Last change-51vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
ASST $18.00 put open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 5212600 2026-10-15: 0 OI2026-10-16: 50 OI2026-10-21: 521 OI2026-10-23: 470 OI Oct 15, 2026Oct 23, 2026

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

ASST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing470-51
Oct 21, 2026521+471
Oct 16, 202650+50
Oct 15, 20260No prior observation