Learn more about whether Quaker Chemical Corporation or The Scotts Miracle-Gro Company is a better investment based on AAII's A+ Investor grades, which compare both companies' key financial metrics.

Shares of Air Products & Chemicals Inc. shed 5.39% to $310.44 Friday, on what proved to be an all-around grim trading session for the stock market, with the S&P 500 Index falling 0.95% to 6,025.99 and ...