BOSTON ( TheStreet) -- Corporate profits are soaring, but that's not enough for investors.S&P 500 companies boosted second-quarter earnings by 34%, analysts surveyed by Bloomberg estimate, and almost two dozen will publish results this week. Investors, ultimately, are concerned about a double-dip recession. Here are three stocks that thrive on fear. They have outperformed stock-market indices in 2010 because they operate in industries that tend to do well regardless of the economic climate. 3. Vector Group ( VGR) sells cigarettes.