Below are the top large-cap steel & iron stocks on the NYSE and the NASDAQ in terms of PEG ratio. Tenaris SA (NYSE: TS ) has a PEG ratio of 0.79. Tenaris' trailing-twelve-month revenue is $10.83 billion. Gerdau SA (NYSE: GGB ) has a PEG ratio of 1.76. Gerdau's trailing-twelve-month