The S&P 500 has been on a steady upward climb for the last nine and a half years. As the market climbs higher and higher the smart investor needs to know how to spot overpriced investments. Ideally, one has bought low at the beginning of the bull market and can sell high before the market or individual stocks correct. The S&P 500 index is four times greater than it was in February of 2009. However, this year the vast majority of gains within the S&P 500 group have come from a handful of well-known tech stocks. CNBC noted that just […]