Dow, S&P 500 post best month since 1987

US stocks slipped on Thursday after data showed that another 3.8 million Americans filed for unemployment last week.
Still, both the Dow Jones industrial average and the S&P 500 completed their best months since 1987.
Shares of Tesla and Facebook surged in early trading after the companies reported earnings.
Tesla closed lower after David Einhorn again called the company's accounting into question on Twitter.
Oil prices surged on early signals of a global demand recovery.
Read more on Busine