On Tuesday, US stock futures advanced, with S&P 500 contracts climbing by 0.8%, Nasdaq 100 improving by 1.1%, and Dow Jones futures increasing by over 300 points. This rise extends gains from the prior session as hostilities in the Middle East showed a temporary reprieve. President Trump declared a ceasefire between Israel and Iran, which both parties seemingly accepted; however, the truce remains unstable, with accusations from Israel regarding Iran's breach of the agreement. Traders are also keenly observing Federal Reserve Chair Powell's testimony before Congress today, seeking more clarity on the Fed's economic and monetary policy stance. In the corporate sphere, Nvidia shares increased approximately 1% in premarket trading as the company's CEO initiated the sale of his shares under a newly implemented trading strategy that could result in up to $865 million in stock being sold by the end of 2025. Other major tech stocks were on the rise before the market opened, with Apple gaining 1.4%, Microsoft 0.6%, Amazon 1.5%, Meta 0.8%, and Alphabet 1.2%.