U.S. markets started Monday higher after last week's slaughter that left the benchmark S&P 500 with its worst weekly drop in more than two years. Michael Kors (KORS) reported earnings that beat Wall Street's expectations by 10 cents a share. The luxury goods maker also saw revenue well above forecasts. Warren's Buffett's Berkshire Hathaway (BRK.A) (BRK.B) also beat estimates on both the top and bottom lines, profit also jumped 41% from a year earlier. McDonald's (MCD) is hoping to get back to serving a full menu at its restaurants in China. The fast-food chain faced a shortage of meat after cutting ties with a Shanghai supplier for allegedly selling them expired meat. Earnings after the bell include AIG (AIG), Jamba (JMBA) and Marathon Oil (MRO). TheStreet's Susannah Lee reports from Wall Street.