OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

KEYS $310.00 Put

KEYS261218P00310000

Latest saved OI217Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
KEYS $310.00 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. 2171080 2026-10-02: 209 OI2026-10-05: 209 OI2026-10-06: 209 OI2026-10-07: 209 OI2026-10-08: 210 OI2026-10-09: 210 OI2026-10-13: 210 OI2026-10-14: 213 OI2026-10-15: 216 OI2026-10-16: 216 OI2026-10-21: 217 OI2026-10-23: 217 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, 2026Viewing2170
Oct 21, 2026217+1
Oct 16, 20262160
Oct 15, 2026216+3
Oct 14, 2026213+3
Oct 13, 20262100
Oct 09, 20262100
Oct 08, 2026210+1
Oct 07, 20262090
Oct 06, 20262090
Oct 05, 20262090
Oct 02, 2026209No prior observation