Asian stock markets advanced broadly, buoyed by hopes for a diplomatic resolution to international tensions. The iShares MSCI Japan ETF (EWJ) tracked gains as Japan's Nikkei 225 index surged 2.68%. Regional markets followed the upward trend. While signals from U.S.-Iran negotiations were mixed, leading to a rebound in oil prices, the overall market sentiment was driven by optimism that potential diplomatic efforts could ease conflicts, propelling the widespread rally across Asian equities.