OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

FAST $42.50 Put

FAST261120P00042500

Latest saved OI2,182Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FAST $42.50 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. 2,1821,0910 2026-10-09: 614 OI2026-10-13: 605 OI2026-10-14: 605 OI2026-10-15: 599 OI2026-10-16: 599 OI2026-10-21: 2,179 OI2026-10-23: 2,182 OI Oct 09, 2026Oct 23, 2026

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

FAST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,182+3
Oct 21, 20262,179+1,580
Oct 16, 20265990
Oct 15, 2026599-6
Oct 14, 20266050
Oct 13, 2026605-9
Oct 09, 2026614No prior observation