The S&P 500 opened strong and finished strong, and Thursday’s close above 2120 was a new closing high for the index. The index has yet to hit an intraday high, but the trends are up and new intraday highs should follow. The rally was pretty broad-based, but the gains were relatively modest. IWM, SPY and DIA gained around 1%, while QQQ led with a 1.5% gain. The energy sector was the clear…