OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

VST $320.00 Call

VST270115C00320000

Latest saved OI456Oct 23, 2026
Last change0vs 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. 4562280 2026-10-02: 444 OI2026-10-05: 447 OI2026-10-06: 453 OI2026-10-07: 453 OI2026-10-08: 453 OI2026-10-09: 453 OI2026-10-14: 453 OI2026-10-15: 453 OI2026-10-16: 453 OI2026-10-21: 456 OI2026-10-23: 456 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, 2026Viewing4560
Oct 21, 2026456+3
Oct 16, 20264530
Oct 15, 20264530
Oct 14, 20264530
Oct 09, 20264530
Oct 08, 20264530
Oct 07, 20264530
Oct 06, 2026453+6
Oct 05, 2026447+3
Oct 02, 2026444No prior observation