Key TakeawaysThe S&P 500 slipped by less than 0.1% on Tuesday, Oct. 22, as the markets digested a mixed bag of corporate earnings reports.Weakness in international markets weighed on the results of auto parts distributor Genuine Parts, and its shares plummeted.Philip Morris shares surged after the tobacco giant beat quarterly estimates, boosted by demand for its smoke-free products. Major U.S. equities were mixed and little changed on Tuesday as investors reacted to an array of earnings reports and increasi ...