OITracker Cboe delayed data

Contract OI history

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Apr 16, 2027 EXPIRATION

ON $65.00 Put

ON270416P00065000

Latest saved OI207Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $65.00 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. 2071030 2026-10-09: 202 OI2026-10-13: 204 OI2026-10-14: 204 OI2026-10-15: 205 OI2026-10-16: 205 OI2026-10-21: 206 OI2026-10-23: 207 OI Oct 09, 2026Oct 23, 2026

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

ON contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing207+1
Oct 21, 2026206+1
Oct 16, 20262050
Oct 15, 2026205+1
Oct 14, 20262040
Oct 13, 2026204+2
Oct 09, 2026202No prior observation