OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

D $52.50 Put

D280121P00052500

Latest saved OI241Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
D $52.50 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. 2411200 2026-10-02: 112 OI2026-10-05: 112 OI2026-10-06: 112 OI2026-10-07: 112 OI2026-10-08: 112 OI2026-10-09: 112 OI2026-10-13: 112 OI2026-10-14: 112 OI2026-10-15: 106 OI2026-10-16: 131 OI2026-10-21: 241 OI2026-10-23: 241 OI Oct 02, 2026Oct 23, 2026

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

D contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2410
Oct 21, 2026241+110
Oct 16, 2026131+25
Oct 15, 2026106-6
Oct 14, 20261120
Oct 13, 20261120
Oct 09, 20261120
Oct 08, 20261120
Oct 07, 20261120
Oct 06, 20261120
Oct 05, 20261120
Oct 02, 2026112No prior observation