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Contract OI history

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Jan 21, 2028 EXPIRATION

VST $155.00 Put

VST280121P00155000

Latest saved OI372Oct 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 $155.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3781890 2026-10-02: 376 OI2026-10-05: 376 OI2026-10-06: 375 OI2026-10-07: 378 OI2026-10-08: 378 OI2026-10-09: 373 OI2026-10-14: 373 OI2026-10-15: 372 OI2026-10-16: 372 OI2026-10-21: 372 OI2026-10-23: 372 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, 20263720
Oct 21, 2026Viewing3720
Oct 16, 20263720
Oct 15, 2026372-1
Oct 14, 20263730
Oct 09, 2026373-5
Oct 08, 20263780
Oct 07, 2026378+3
Oct 06, 2026375-1
Oct 05, 20263760
Oct 02, 2026376No prior observation