Stocks rushed higher worldwide, and oil prices eased Wednesday as hopes built that the war with Iran could end soon. That’s even though some of the signals investors saw as hopeful are already under dispute, and several earlier bouts of optimism in financial markets quickly got undercut by continued, fierce fighting in the war.

The Standard & Poor’s 500 rose 0.7% and added to its leap from the day before, which was its best since last spring. That followed even bigger gains for stock markets across Europe and Asia, including an 8.4% surge in South Korea, which were catching up to Wall Street’s rally from Tuesday.

The Dow Jones industrial average climbed 224 points, or 0.5%, and the Nasdaq composite rallied 1.2%.

Oil prices also…