OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

VRTX $500.00 Put

VRTX261120P00500000

Latest saved OI100Oct 23, 2026
Last change-13vs 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. 150750 2026-10-09: 147 OI2026-10-14: 150 OI2026-10-15: 147 OI2026-10-16: 144 OI2026-10-21: 113 OI2026-10-23: 100 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, 2026Viewing100-13
Oct 21, 2026113-31
Oct 16, 2026144-3
Oct 15, 2026147-3
Oct 14, 2026150+3
Oct 09, 2026147No prior observation