The S&P 500 index broke a four-day losing streak thanks to gains in banks and health care companies, but a drop in Boeing pulled the Dow Jones Industrial Average slightly lower, the AP reports. Wells Fargo rose 1.1% Thursday and AbbVie, which is buying fellow drugmaker Allergan, rose 2.9%. Boeing slumped 2.9%. The airplane maker is facing further delays in getting its grounded 737 MAX back in service. Investors are looking ahead to a weekend meeting on trade between US President Donald Trump and Chinese leader Xi Jinping. The S&P 500 rose 11 points, or 0.4% to 2,924. With one day left of trading in June it's up 6.3% for the month. The Dow fell 10 points, less than 0.1%, to 26,526. The Nasdaq added 57 points, or 0.7%, to 7,967. (More stock market stories.)