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Contract OI history

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Dec 18, 2026 EXPIRATION

VLO $320.00 Put

VLO261218P00320000

Latest saved OI15,900Oct 23, 2026
Last change-32vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
VLO $320.00 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. 15,9327,9660 2026-10-02: 15,915 OI2026-10-05: 15,921 OI2026-10-06: 15,917 OI2026-10-07: 15,897 OI2026-10-08: 15,897 OI2026-10-09: 15,915 OI2026-10-14: 15,921 OI2026-10-15: 15,908 OI2026-10-16: 15,907 OI2026-10-21: 15,932 OI2026-10-23: 15,900 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, 2026Viewing15,900-32
Oct 21, 202615,932+25
Oct 16, 202615,907-1
Oct 15, 202615,908-13
Oct 14, 202615,921+6
Oct 09, 202615,915+18
Oct 08, 202615,8970
Oct 07, 202615,897-20
Oct 06, 202615,917-4
Oct 05, 202615,921+6
Oct 02, 202615,915No prior observation