-- Axcelis Technologies (ACLS) shares were up 8.6% in afternoon trading on Monday after B. Riley upgraded the company's stock to buy from neutral and raised the price target to $150 from $91.
Trading volume stood at around 809,000 shares, roughly the same number as the stock's daily average.
Price: $128.52, Change: $+9.79, Percent Change: +8.25%