OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

ON $85.00 Put

ON261120P00085000

Latest saved OI174Oct 23, 2026
Last change-9vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $85.00 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. 186930 2026-10-09: 180 OI2026-10-13: 186 OI2026-10-14: 186 OI2026-10-15: 184 OI2026-10-16: 184 OI2026-10-21: 183 OI2026-10-23: 174 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, 2026Viewing174-9
Oct 21, 2026183-1
Oct 16, 20261840
Oct 15, 2026184-2
Oct 14, 20261860
Oct 13, 2026186+6
Oct 09, 2026180No prior observation