US equity indexes closed lower Monday after President Donald Trump suggested a plan to reinstate a blockade on Iranian ships and charge a toll for providing security to cargo vessels crossing the Strait of Hormuz, sending crude oil prices higher.
* "We are reinstating the IRANIAN BLOCKADE," Trump said in a Truth Social post on Monday, following a weekend of attacks on Iran. He added that the US will protect vessels crossing the Strait and charge 20% of the cargo's cost as expense reimbursement.
* August West Texas Intermediate crude oil rose $6.23 to settle at $77.64 per barrel, while September Brent crude, the global benchmark, was last seen up $6.90 at $82.91.
* Valero Energy (VLO) stock was up 5.4%, and Phillips 66 (PSX) was 5.3% higher, among the top gainers on the S&P 500, after crude oil prices rose following clashes between the US and Iran.
* Alphabet's (GOOG, GOOGL) Google is one of the biggest buyers of Nvidia's (NVDA) AI server chips, but it has also been expanding its in-house AI chip business in a move that could challenge Nvidia's dominance, The Information reported. Alphabet shares were down 1.3%, and Nvidia fell 3.5%, the worst performer on the Dow.