Enphase Energy is one of the worst stocks to own in September in the last 10 yearsSeptember is, historically, the most bearish month of the year for stocks. There are a number of stocks that consistently underperform the rest of the market during this time. Schaeffer's Senior Quantitative Analyst Rocky White compiled a list of the worst 25 of them, with data going back 10 years. To see the list of the best stocks to own, click here. Enphase Energy Inc (NASDAQ:ENPH) is a standout on this list, marking Septem ...