OITracker Cboe delayed data

Contract OI history

Back to ASST

Jan 19, 2029 EXPIRATION

ASST $40.00 Put

ASST290119P00040000

Latest saved OI151Oct 23, 2026
Last change+10vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ASST $40.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 151750 2026-10-09: 135 OI2026-10-13: 140 OI2026-10-14: 140 OI2026-10-15: 140 OI2026-10-16: 141 OI2026-10-21: 141 OI2026-10-23: 151 OI Oct 09, 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, 2026Viewing151+10
Oct 21, 20261410
Oct 16, 2026141+1
Oct 15, 20261400
Oct 14, 20261400
Oct 13, 2026140+5
Oct 09, 2026135No prior observation