Plunging U.S. interest rates this year have fired up momentum stocks, which have dramatically outperformed stocks that are driven soley by fundamentals. Instead, investors seeking big gains might look at stocks with two characteristics: they are inexpensive and also show recent price momentum. McKesson’s, AT&T, and D.R. Horton’s foreword PE are 9.3, 10.3 and 10.9, respectively, per Yahoo Finance, dramatically below the S&P 500, which traded at around 16.7 at the end of last week.