Doubts over Iran tensions ease as US stocks surge to best day since spring

US stocks surged to their best day since last spring, with the Dow Jones Industrial Average rising 1,125 points, driven by renewed hopes for a deal on Iran as mixed signals kept oil prices steady. Asian stocks were mostly lower due to concerns over economic recovery and inflation. The surge in US stocks was also fueled by gains in technology and healthcare sectors. Investors are cautiously optimistic about the prospect of a US-Iran nuclear deal coming together.