OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

OPEN $5.00 Put

OPEN261218P00005000

Latest saved OI392Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OPEN $5.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4222110 2026-10-09: 422 OI2026-10-13: 390 OI2026-10-14: 390 OI2026-10-15: 391 OI2026-10-16: 393 OI2026-10-21: 392 OI2026-10-23: 392 OI Oct 09, 2026Oct 23, 2026

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

OPEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3920
Oct 21, 2026392-1
Oct 16, 2026393+2
Oct 15, 2026391+1
Oct 14, 20263900
Oct 13, 2026390-32
Oct 09, 2026422No prior observation