The stock market marched past another milepost on its turbulent journey back from the Great Recession. The S&P 500 closed at a new high, three weeks after the Dow beat its record. The S&P capped its best quarter in a year, rising 10%, and the Dow had its best first quarter in 15 years, climbing 11%. Still, investors warned against getting too excited. ‘Getting back to where we were is an important step,’ said Howard Silverblatt, at S&P Dow Jones Indices. But ‘markets are volatile, and if you are a long-term investor you should expect declines.’ The S&P 500 has recovered all recession and financial crisis losses; it has climbed 132% since the bottom.