OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

DE $400.00 Put

DE270115P00400000

Latest saved OI415Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
DE $400.00 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. 4182090 2026-10-02: 418 OI2026-10-05: 418 OI2026-10-06: 418 OI2026-10-07: 416 OI2026-10-08: 416 OI2026-10-09: 416 OI2026-10-13: 416 OI2026-10-14: 416 OI2026-10-15: 416 OI2026-10-16: 416 OI2026-10-21: 415 OI2026-10-23: 415 OI Oct 02, 2026Oct 23, 2026

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

DE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4150
Oct 21, 2026415-1
Oct 16, 20264160
Oct 15, 20264160
Oct 14, 20264160
Oct 13, 20264160
Oct 09, 20264160
Oct 08, 20264160
Oct 07, 2026416-2
Oct 06, 20264180
Oct 05, 20264180
Oct 02, 2026418No prior observation