OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

OM $2.50 Put

OM261120P00002500

Latest saved OI449Oct 23, 2026
Last change+57vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
OM $2.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 4492240 2026-10-08: 392 OI2026-10-09: 392 OI2026-10-13: 392 OI2026-10-14: 392 OI2026-10-16: 392 OI2026-10-20: 392 OI2026-10-23: 449 OI Oct 08, 2026Oct 23, 2026

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

OM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing449+57
Oct 20, 20263920
Oct 16, 20263920
Oct 14, 20263920
Oct 13, 20263920
Oct 09, 20263920
Oct 08, 2026392No prior observation