OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

ON $71.00 Put

ON261030P00071000

Latest saved OI104Oct 23, 2026
Last change+30vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $71.00 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. 104520 2026-10-09: 53 OI2026-10-13: 55 OI2026-10-14: 55 OI2026-10-15: 57 OI2026-10-16: 57 OI2026-10-21: 74 OI2026-10-23: 104 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, 2026Viewing104+30
Oct 21, 202674+17
Oct 16, 2026570
Oct 15, 202657+2
Oct 14, 2026550
Oct 13, 202655+2
Oct 09, 202653No prior observation