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Contract OI history

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Nov 20, 2026 EXPIRATION

VST $155.00 Put

VST261120P00155000

Latest saved OI1,966Oct 23, 2026
Last change+388vs 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. 1,9669830 2026-10-02: 402 OI2026-10-05: 502 OI2026-10-06: 513 OI2026-10-07: 479 OI2026-10-08: 479 OI2026-10-09: 1,121 OI2026-10-14: 1,164 OI2026-10-15: 1,208 OI2026-10-16: 1,572 OI2026-10-21: 1,578 OI2026-10-23: 1,966 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, 2026Viewing1,966+388
Oct 21, 20261,578+6
Oct 16, 20261,572+364
Oct 15, 20261,208+44
Oct 14, 20261,164+43
Oct 09, 20261,121+642
Oct 08, 20264790
Oct 07, 2026479-34
Oct 06, 2026513+11
Oct 05, 2026502+100
Oct 02, 2026402No prior observation