The Biggest Loser: Martin Marietta Materials Drops 2.9%

Martin Marietta Materials ( MLM ) tumbled to the bottom of the S&P 500 today after the Republican's failure to pass the health-care bill called into question the Trump administrations ability to enact its agenda. Martin Marietta Materials, which makes gravel for roads and other infrastructure products, dropped 2.9% to $207.24, while the S&P 500 dipped 0.1% to 2,343.98. Vulcan Materials ( VMC ), another infrastructure play...