The catalyst: semiconductor equipment sector selloff.

A number of stocks fell in the afternoon session after surging crude oil prices and a jump in benchmark Treasury yields stoked renewed concerns over inflation and prolonged corporate borrowing costs. Oil prices surged after the U.S. military said it was striking Iranian targets, pressuring bonds as a global rout raised borrowing costs, the Wall Street Journal said. The 10-year Treasury yield climb

As reported: “Entegris, Penguin Solutions, Teradyne, Applied Materials, and KLA Corporation Stocks Trade Down, What You Need To Know” — Yahoo Finance, 2026-09-01.