OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

KEYS $310.00 Put

KEYS261120P00310000

Latest saved OI274Oct 23, 2026
Last change-34vs 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. 3081540 2026-10-02: 267 OI2026-10-05: 268 OI2026-10-06: 268 OI2026-10-07: 268 OI2026-10-08: 268 OI2026-10-09: 269 OI2026-10-13: 269 OI2026-10-14: 269 OI2026-10-15: 269 OI2026-10-16: 272 OI2026-10-21: 308 OI2026-10-23: 274 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, 2026Viewing274-34
Oct 21, 2026308+36
Oct 16, 2026272+3
Oct 15, 20262690
Oct 14, 20262690
Oct 13, 20262690
Oct 09, 2026269+1
Oct 08, 20262680
Oct 07, 20262680
Oct 06, 20262680
Oct 05, 2026268+1
Oct 02, 2026267No prior observation