Check out the companies making headlines after the bell:
Shares of H&R Block fell more than 4 percent during after-hours trading. The tax preparation company reported a first quarter loss that was in-line with expectations. The results reflect the seasonality of the business, CFO Tony Bowen said in a statement. However, H&R Block beat revenue expectations.
AeroVironment's stock surged more than 9 percent during extended trading after the company's bottom line topped Wall Street expectations. The company a loss of 19 cents a share, compared with a loss of 34 cents a share expected by analysts polled by Thomson Reuters. The company's top line also topped analysts' estimates.
Ollie's Bargain Outlet shares fell about 2 percent despite beating second quarter earnings and revenue expectations. The retailer attributed the results to a 4.5 percent increase in comparable sales.
Bank of America's stock barely budged after Warren Buffet's Berkshire Hathaway announced it has become the bank's largest shareholder. Berkshire announced it acquired 700 million shares at a steep discount just after the bell.