Stocks have been on rampage since they hit their lows in 2009. Just in 2013 alone, the stock market gained 30%. And because of the recent gains, more individual investors have been getting into the market. And if you are one of the new investors, you will probably make a few mistakes before finally figuring out how stock investing works. Here are six of the biggest mistakes that new investors make in the stock market. I am guilty of all of these mistakes when I first started investing in stocks.