OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

KEY $20.00 Put

KEY270115P00020000

Latest saved OI3,522Oct 23, 2026
Last change+4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
KEY $20.00 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. 3,5221,7610 2026-10-02: 3,509 OI2026-10-05: 3,510 OI2026-10-06: 3,512 OI2026-10-07: 3,512 OI2026-10-08: 3,512 OI2026-10-09: 3,513 OI2026-10-13: 3,518 OI2026-10-14: 3,518 OI2026-10-15: 3,518 OI2026-10-16: 3,518 OI2026-10-21: 3,518 OI2026-10-23: 3,522 OI Oct 02, 2026Oct 23, 2026

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

KEY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20263,522+4
Oct 21, 2026Viewing3,5180
Oct 16, 20263,5180
Oct 15, 20263,5180
Oct 14, 20263,5180
Oct 13, 20263,518+5
Oct 09, 20263,513+1
Oct 08, 20263,5120
Oct 07, 20263,5120
Oct 06, 20263,512+2
Oct 05, 20263,510+1
Oct 02, 20263,509No prior observation