OITracker Cboe delayed data

Contract OI history

Back to VST

Dec 17, 2027 EXPIRATION

VST $320.00 Call

VST271217C00320000

Latest saved OI598Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
VST $320.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5992990 2026-10-02: 594 OI2026-10-05: 594 OI2026-10-06: 594 OI2026-10-07: 596 OI2026-10-08: 596 OI2026-10-09: 597 OI2026-10-14: 597 OI2026-10-15: 597 OI2026-10-16: 597 OI2026-10-21: 599 OI2026-10-23: 598 OI Oct 02, 2026Oct 23, 2026

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

VST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing598-1
Oct 21, 2026599+2
Oct 16, 20265970
Oct 15, 20265970
Oct 14, 20265970
Oct 09, 2026597+1
Oct 08, 20265960
Oct 07, 2026596+2
Oct 06, 20265940
Oct 05, 20265940
Oct 02, 2026594No prior observation