Mid-Afternoon Market Update: Dow Surges Over 100 Points; NextGen Healthcare Shares Plunge

Toward the end of trading Thursday, the Dow traded up 0.34% to 34,439.88 while the NASDAQ rose 0.23% to 13,770.24. The S&P also rose, gaining 0.23% to 4,205.48.
The U.S. has…