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Contract OI history

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Mar 19, 2027 EXPIRATION

VLO $400.00 Put

VLO270319P00400000

Latest saved OI494Oct 23, 2026
Last change+5vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
VLO $400.00 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. 4942470 2026-10-02: 476 OI2026-10-05: 475 OI2026-10-06: 476 OI2026-10-07: 478 OI2026-10-08: 478 OI2026-10-09: 478 OI2026-10-14: 486 OI2026-10-15: 486 OI2026-10-16: 486 OI2026-10-21: 489 OI2026-10-23: 494 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, 2026Viewing494+5
Oct 21, 2026489+3
Oct 16, 20264860
Oct 15, 20264860
Oct 14, 2026486+8
Oct 09, 20264780
Oct 08, 20264780
Oct 07, 2026478+2
Oct 06, 2026476+1
Oct 05, 2026475-1
Oct 02, 2026476No prior observation