Value Line Investment Survey This link opens in a new windowValue Line evaluates the investment prospects of 1,700 large, mid, and small-capitalization stocks traded on the U.S. exchanges. Graphs and tables illustrate their long term returns, ratios, earnings, and debt. Narrative analysis discusses company prospects. Stocks are ranked for timeliness, safety, and technical factors. Value Line also contains 1-page analyses of 100 industries.