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Contract OI history

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Dec 18, 2026 EXPIRATION

VST $175.00 Put

VST261218P00175000

Latest saved OI298Oct 23, 2026
Last change+196vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
VST $175.00 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. 2981490 2026-10-02: 84 OI2026-10-05: 84 OI2026-10-06: 92 OI2026-10-07: 110 OI2026-10-08: 110 OI2026-10-09: 103 OI2026-10-14: 103 OI2026-10-15: 103 OI2026-10-16: 102 OI2026-10-21: 102 OI2026-10-23: 298 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, 2026298+196
Oct 21, 2026Viewing1020
Oct 16, 2026102-1
Oct 15, 20261030
Oct 14, 20261030
Oct 09, 2026103-7
Oct 08, 20261100
Oct 07, 2026110+18
Oct 06, 202692+8
Oct 05, 2026840
Oct 02, 202684No prior observation