US stock markets experienced a significant rally, with major indexes like the Dow and Nasdaq posting record gains as falling oil prices eased inflation concerns. The optimism surrounding U.S.-Iran diplomatic efforts played a key role in this market surge. The Dow closed at a new high, marking its first record close in nearly a month, while tech stocks, particularly Amazon, also saw substantial increases. As Wall Street anticipates another week of key earnings reports, the overall sentiment remains positive, with traders focusing on continued positive developments in the Middle East.