OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

VRTX $500.00 Put

VRTX261218P00500000

Latest saved OI316Oct 23, 2026
Last change-8vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
VRTX $500.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3241620 2026-10-09: 315 OI2026-10-14: 315 OI2026-10-15: 315 OI2026-10-16: 315 OI2026-10-21: 324 OI2026-10-23: 316 OI Oct 09, 2026Oct 23, 2026

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

VRTX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing316-8
Oct 21, 2026324+9
Oct 16, 20263150
Oct 15, 20263150
Oct 14, 20263150
Oct 09, 2026315No prior observation