Memory and CPU stocks rallied last night, carrying the S&P to new all time highs. For me, the memory sector is so overbought and I'm not risking entering at such high levels. The smart thing however is to continue investing into SPY for the long term as the average double digit growth a year compounds sweetly and safely over the years. Like what Buffet once said, it is almost impossible for anyone to beat the S&P500 over a long term.