US stocks halted a five-day slide that dragged global equities into a bear market, as oil rebounded with its best day in seven years and bank shares jumped the most since 2011. Treasuries had the biggest drop of the year. The Standard & Poor’s 500 index’s rally trimmed its loss for the week to less than 1 percent amid data showing higher retail sales. Lenders rallied 4 percent after JPMorgan Chase & Co.’s Jamie Dimon said he bought more shares in the bank, while Commerzbank AG’s results helped European equities rebound from the lowest level since 2013. US and European shares finished a tumultuous week on a high note, as Commerzbank’s results eased concern that lenders won’t find ways to be profitable amid dwindling interest rates. At the same time, crude delivered its biggest rally in three weeks, providing a respite from a rout that took oil to the lowest settlement since 2003. Investors spent the first four days of the week selling riskier assets amid growing signs that central-bank policy tools were losing their stimulative effects. Federal Reserve Chair Janet Yellen signaled financial-market volatility could delay rate increases as the central bank assesses the impact of recent turmoil on domestic growth.