- The S&P 500 ended lower on Friday after data showed weaker jobs growth than expected in September, yet investors still expected the Federal Reserve to begin tapering asset purchases this year.Wall Street’s three main indexes were mixed for much of the session before losing ground toward the end. All three indexes posted weekly gains.Comcast Corp tumbled after Wells Fargo cut its price target on the media company, while Charter Communications Inc fell after Wells Fargo downgraded that cable op