Stocks that traded heavily or had substantial price changes Thursday:

       WD-40 Co., up $1.26 to $261.80.

       The maintenance and cleaning product company reported strong fiscal third-quarter financial results.

       Helen of Troy Ltd., down $14.01 to $218.51.

       Investors were disappointed by the personal and household products company's financial forecast.

       Kansas City Southern, down $22.46 to $262.79.

       The Biden administration is reportedly pushing regulators to focus on anticompetitive practices in the railroad and shipping industries.

       Amgen Inc., up $1.06 to $244.28.

       The FDA is giving priority review to a potential asthma treatment, which was jointly developed with AstraZeneca.

       PulteGroup Inc., down $2.40 to $52.71.

       Homebuilders slipped over concerns about the Federal Reserve eventually easing bond purchases, which helps keep interest rates low.

       M&T Bank Corp., down $3.95 to $137.55.

       Bank stocks fell as bond yields, which are used to set interest rates on loans, continued slipping.

       Biogen Inc., up $13.72 to $369.05.

       The company updated the label for its Alzheimer’s disease drug to specify its use for “mild” stages of the disease.

       Freeport-McMoRan Inc., down $1.52 to $34.69.

       Falling copper prices weighed on the mining company's stock.