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Contract OI history

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Dec 18, 2026 EXPIRATION

VLO $310.00 Put

VLO261218P00310000

Latest saved OI780Oct 23, 2026
Last change+10vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
VLO $310.00 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. 7803900 2026-10-02: 730 OI2026-10-05: 733 OI2026-10-06: 725 OI2026-10-07: 733 OI2026-10-08: 733 OI2026-10-09: 733 OI2026-10-14: 753 OI2026-10-15: 760 OI2026-10-16: 760 OI2026-10-21: 770 OI2026-10-23: 780 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

VLO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing780+10
Oct 21, 2026770+10
Oct 16, 20267600
Oct 15, 2026760+7
Oct 14, 2026753+20
Oct 09, 20267330
Oct 08, 20267330
Oct 07, 2026733+8
Oct 06, 2026725-8
Oct 05, 2026733+3
Oct 02, 2026730No prior observation