OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

P $90.00 Put

P270521P00090000

Latest saved OI210Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
P $90.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2101050 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 50 OI2026-10-07: 50 OI2026-10-08: 50 OI2026-10-09: 50 OI2026-10-13: 50 OI2026-10-14: 210 OI2026-10-15: 210 OI2026-10-16: 210 OI2026-10-21: 210 OI2026-10-23: 210 OI Oct 02, 2026Oct 23, 2026

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

P contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2100
Oct 21, 20262100
Oct 16, 20262100
Oct 15, 20262100
Oct 14, 2026210+160
Oct 13, 2026500
Oct 09, 2026500
Oct 08, 2026500
Oct 07, 2026500
Oct 06, 202650+50
Oct 05, 202600
Oct 02, 20260No prior observation