The Dow Jones Industrial Average increased 210.22 points, or 0.61 percent, to 34,502.51. The S&P 500 rose 5.70 points, or 0.13 percent, to 4,297.50. The Nasdaq Composite Index fell 24.38 points, or 0.17 percent, to 14,503.95.
Six of the 11 primary S&P 500 sectors ended in green, with energy up 1.31 percent, leading the gainers. Real estate slipped 0.76 percent, the worst-performing group.
U.S.-listed Chinese companies traded mostly lower with six of the top 10 stocks by weight in the S&P U.S. Listed China 50 index ending the day on a downbeat note.
On the economic front, private companies in the United States added 692,000 jobs in June, payroll data company Automatic Data Processing (ADP) reported Wednesday, beating market expectations. However, the May total of jobs added was revised down from 978,000 to 886,000.
"While payrolls are still nearly 7 million short of pre-COVID-19 levels, job gains have totaled about 3 million since the beginning of 2021," said Nela Richardson, chief economist at ADP.
"Service providers, the hardest hit sector, continue to do the heavy lifting, with leisure and hospitality posting the strongest gain as businesses begin to reopen to full capacity across the country," Richardson said.
The more closely-watched monthly employment report released by the Department of Labor is slated for Friday, which will include employment data from both the private sector and the government.