OITracker Cboe delayed data

Contract OI history

Back to VRTX

Dec 18, 2026 EXPIRATION

VRTX $440.00 Put

VRTX261218P00440000

Latest saved OI1,208Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
VRTX $440.00 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. 1,2086040 2026-10-09: 303 OI2026-10-14: 306 OI2026-10-15: 306 OI2026-10-16: 1,206 OI2026-10-21: 1,208 OI2026-10-23: 1,208 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, 2026Viewing1,2080
Oct 21, 20261,208+2
Oct 16, 20261,206+900
Oct 15, 20263060
Oct 14, 2026306+3
Oct 09, 2026303No prior observation