Key TakeawaysU.S. equities bounced back from Wednesday's declines with gains at midday Thursday, Dec. 21, 2023, after several companies reported better-than-expected results.Wholesale market vehicle sales rose at CarMax, and shares of the used car giant took off.Paychex shares tumbled after it said macroeconomic pressure on small- and mid-sized businesses hurt demand.U.S. equities brushed off Wednesday’s selloff and went back to their winning ways at midday on Thursday after several companies reported bette ...