OITracker Cboe delayed data

Contract OI history

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Feb 19, 2027 EXPIRATION

KEYS $310.00 Put

KEYS270219P00310000

Latest saved OI111Oct 23, 2026
Last change+28vs 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. 111550 2026-10-02: 28 OI2026-10-05: 28 OI2026-10-06: 28 OI2026-10-07: 28 OI2026-10-08: 28 OI2026-10-09: 28 OI2026-10-13: 28 OI2026-10-14: 28 OI2026-10-15: 28 OI2026-10-16: 28 OI2026-10-21: 83 OI2026-10-23: 111 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, 2026Viewing111+28
Oct 21, 202683+55
Oct 16, 2026280
Oct 15, 2026280
Oct 14, 2026280
Oct 13, 2026280
Oct 09, 2026280
Oct 08, 2026280
Oct 07, 2026280
Oct 06, 2026280
Oct 05, 2026280
Oct 02, 202628No prior observation