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Contract OI history

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Sep 17, 2027 EXPIRATION

VST $155.00 Put

VST270917P00155000

Latest saved OI108Oct 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 $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. 108540 2026-10-02: 103 OI2026-10-05: 103 OI2026-10-06: 104 OI2026-10-07: 104 OI2026-10-08: 104 OI2026-10-09: 107 OI2026-10-14: 107 OI2026-10-15: 107 OI2026-10-16: 107 OI2026-10-21: 107 OI2026-10-23: 108 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, 2026Viewing108+1
Oct 21, 20261070
Oct 16, 20261070
Oct 15, 20261070
Oct 14, 20261070
Oct 09, 2026107+3
Oct 08, 20261040
Oct 07, 20261040
Oct 06, 2026104+1
Oct 05, 20261030
Oct 02, 2026103No prior observation