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Contract OI history

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Dec 18, 2026 EXPIRATION

VST $155.00 Put

VST261218P00155000

Latest saved OI1,737Oct 23, 2026
Last change-17vs 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. 1,7548770 2026-10-02: 1,189 OI2026-10-05: 1,189 OI2026-10-06: 1,203 OI2026-10-07: 1,199 OI2026-10-08: 1,199 OI2026-10-09: 1,645 OI2026-10-14: 1,654 OI2026-10-15: 1,690 OI2026-10-16: 1,687 OI2026-10-21: 1,754 OI2026-10-23: 1,737 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, 20261,737-17
Oct 21, 2026Viewing1,754+67
Oct 16, 20261,687-3
Oct 15, 20261,690+36
Oct 14, 20261,654+9
Oct 09, 20261,645+446
Oct 08, 20261,1990
Oct 07, 20261,199-4
Oct 06, 20261,203+14
Oct 05, 20261,1890
Oct 02, 20261,189No prior observation