NEW YORK (AP) — U.S. stocks are inching further into record heights Thursday, as Wall Street continues to coast following its rocket ride on optimism about coming COVID-19 vaccines. The S&P 500 was up 0.3% in morning trading, a day after inching up to set another all-time high. A couple reports that were better than expected on the economy helped support stocks. One showed that growth in the U.S. services sector, including health care and retail, was stronger last month than economists expected. A separate report said fewer U.S. workers filed for unemployment benefits last week than forecast.