Yields in the U.S. bond market again touched their highest levels in roughly two decades and knocked U.S. stocks further from their record high. The S&P 500 fell 0.8% Monday. The Dow Jones Industrial Average dropped 0.7%, and the Nasdaq composite lost 0.9%. The yield on the 10-year Treasury briefly jumped above 5.27% and touched its highest level since 2007 following the latest swings for oil prices. Uncertainty continues about when the war with Iran will allow oil tankers to freely cross the Strait of Hormuz again. That more than offset a climb for Nvidia, which announced a historic stock buyback.