OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

P $50.00 Put

P280121P00050000

Latest saved OI84Oct 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 $50.00 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. 84420 2026-10-02: 83 OI2026-10-05: 83 OI2026-10-06: 83 OI2026-10-07: 83 OI2026-10-08: 83 OI2026-10-09: 83 OI2026-10-13: 83 OI2026-10-14: 83 OI2026-10-15: 83 OI2026-10-16: 84 OI2026-10-21: 84 OI2026-10-23: 84 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, 2026840
Oct 21, 2026Viewing840
Oct 16, 202684+1
Oct 15, 2026830
Oct 14, 2026830
Oct 13, 2026830
Oct 09, 2026830
Oct 08, 2026830
Oct 07, 2026830
Oct 06, 2026830
Oct 05, 2026830
Oct 02, 202683No prior observation