OITracker Cboe delayed data

Contract OI history

Back to VLO

Dec 18, 2026 EXPIRATION

VLO $400.00 Put

VLO261218P00400000

Latest saved OI4,067Oct 23, 2026
Last change+12vs 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. 4,0672,0330 2026-10-02: 144 OI2026-10-05: 154 OI2026-10-06: 154 OI2026-10-07: 254 OI2026-10-08: 254 OI2026-10-09: 277 OI2026-10-14: 1,949 OI2026-10-15: 1,956 OI2026-10-16: 1,962 OI2026-10-21: 4,055 OI2026-10-23: 4,067 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, 2026Viewing4,067+12
Oct 21, 20264,055+2,093
Oct 16, 20261,962+6
Oct 15, 20261,956+7
Oct 14, 20261,949+1,672
Oct 09, 2026277+23
Oct 08, 20262540
Oct 07, 2026254+100
Oct 06, 20261540
Oct 05, 2026154+10
Oct 02, 2026144No prior observation