NEW YORK (AP) — Stocks are rising on Wall Street Friday at the start of a shortened trading session. The S&P 500 rose 0.3%, led by gains in technology companies. Stocks are set to end the abbreviated trading week with a gain, with investors encouraged by progress in getting a vaccine distributed and halting the pandemic’s grip on the global economy. Meanwhile, retailers are hoping that their slumping sales can get a boost from shoppers on Black Friday. The Dow Jones Industrial Average, which earlier this week crossed 30,000 for the first time, rose 0.4%. U.S. markets close at 1 pm Eastern after being shut for the Thanksgiving holiday.