Portfolio Positions - Delek US Holdings (DK): Disclaimer: This is not investment advice. The author holds a position in Delek US Holdings shares at the time of writing. Invesment in these shares is risky and may result in the loss of capital. Author can buy, sell or hold any share at any time. His views may be biased and the information in this post incorrect and his historic performance is oil-related stocks is mediocre at best. Please do your own research!