U.S. stocks Wednesday at the open trading solidly higher, with the main benchmarks attempting a fresh assault on all-time highs, as investors tried to shake off worries about an Asian flu outbreak. Chinese authorities assured the public it was taking steps to contain what investors had feared might become a coronavirus pandemic that could threaten economic growth in the region and possibly spill over to other parts of the globe if the virus spread. However, investors appeared to react positively to assurances from President Donald Trump on the sidelines of the World Economic Forum in Davos, Switzerland. “It’s going to be just fine,” the president told CNBC in an interview at the annual conference. The Dow Jones Industrial Average gained about 92 points, or 0.3%, at 29,288, the S&P 500 index gained 0.4% to 3,332, while the Nasdaq Composite Index advanced 0.5% to 9,415. The S&P 500 and the Nasdaq both touched intraday records near Wednesday’s start. Market Pulse Stories are Rapid-fire, short news bursts on stocks and markets as they move. Visit MarketWatch.com for more information on this news.