OITracker Cboe delayed data

Contract OI history

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Aug 20, 2027 EXPIRATION

ON $75.00 Put

ON270820P00075000

Latest saved OI1,294Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $75.00 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. 1,2946470 2026-10-09: 764 OI2026-10-13: 1,294 OI2026-10-14: 1,294 OI2026-10-15: 1,294 OI2026-10-16: 1,294 OI2026-10-21: 1,294 OI2026-10-23: 1,294 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, 2026Viewing1,2940
Oct 21, 20261,2940
Oct 16, 20261,2940
Oct 15, 20261,2940
Oct 14, 20261,2940
Oct 13, 20261,294+530
Oct 09, 2026764No prior observation