OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

KEYS $300.00 Put

KEYS261120P00300000

Latest saved OI231Oct 23, 2026
Last change+20vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
KEYS $300.00 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. 2311150 2026-10-02: 92 OI2026-10-05: 135 OI2026-10-06: 196 OI2026-10-07: 197 OI2026-10-08: 198 OI2026-10-09: 198 OI2026-10-13: 198 OI2026-10-14: 198 OI2026-10-15: 199 OI2026-10-16: 203 OI2026-10-21: 211 OI2026-10-23: 231 OI Oct 02, 2026Oct 23, 2026

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

KEYS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing231+20
Oct 21, 2026211+8
Oct 16, 2026203+4
Oct 15, 2026199+1
Oct 14, 20261980
Oct 13, 20261980
Oct 09, 20261980
Oct 08, 2026198+1
Oct 07, 2026197+1
Oct 06, 2026196+61
Oct 05, 2026135+43
Oct 02, 202692No prior observation