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Contract OI history

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Mar 19, 2027 EXPIRATION

VST $170.00 Put

VST270319P00170000

Latest saved OI586Oct 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 $170.00 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. 5862930 2026-10-02: 541 OI2026-10-05: 541 OI2026-10-06: 540 OI2026-10-07: 533 OI2026-10-08: 533 OI2026-10-09: 553 OI2026-10-14: 584 OI2026-10-15: 584 OI2026-10-16: 586 OI2026-10-21: 586 OI2026-10-23: 586 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, 20265860
Oct 21, 2026Viewing5860
Oct 16, 2026586+2
Oct 15, 20265840
Oct 14, 2026584+31
Oct 09, 2026553+20
Oct 08, 20265330
Oct 07, 2026533-7
Oct 06, 2026540-1
Oct 05, 20265410
Oct 02, 2026541No prior observation