The markets opened higher with the Dow climbing 67 points to 16,414 after last week's disastrous collapse. Nasdaq rose 10 points to 4,654.
On the upside
Thermo Fisher Scientific (NYSE: TMO) will pay a premium of approximately $1.3 billion in cash to acquire Affymetrix (Nasdaq: AFFX).
Acorn International (NYSE: ATV) will repurchase up to $2 million in American depositary shares.
Anavex Life Sciences (Nasdaq: AVXL) reported a positive dose-response relationship in an ongoing Phase 2a trial of its Alzheimer's disease treatment ANAVEX 2-73.
On the downside
Motley Fool identified Freeport-McMoRan (NYSE: FCX) as one of two worst dividend stocks of 2015.
Shares of Fitbit (NYSE: FIT) extended its losses over growing concerns that the company's Blaze watch will not be able to compete against the smart watches.
McKesson (NYSE: MCK) trimmed its full year earnings outlook.
In the broad market, advancing issues outpaced decliners by a margin of 9 to 7 on the NYSE and by more than 7 to 5 on Nasdaq. The broader S&P 500 rose 3 points to 1,925. Bitcoin slipped $1 to $444.
