September proved to be impressive for Wall Street despite being historically the worst month for stocks. The month saw the Dow and the S&P 500 hit new record closing highs. However, volatility has returned to Wall Street in October as fresh concerns over the economy’s health have dented investors’ sentiment.Given the ongoing volatility, it would be ideal to invest in defensive stocks like utilities and consumer staples like American Electric Power Company, Inc. (AEP) , American Water Works Company, Inc. (AW ...