Benzinga's Top Upgrades

Analysts at Deutsche Bank upgraded Prologis

from Hold to Buy. The price target for Prologis has been raised from $43 to $46. Prologis' shares closed at $42.68 yesterday. Analysts at Stifel Nicolaus upgraded The Advisory Board Company

from Hold to Buy. The price target for Advisory Board is set to $47. Advisory Board Company's shares closed at $37.76 yesterday. Morgan Stanley upgraded Staples

from Underweight to Equal-weight. The price target for Staples has been raised from $13 to $14.50. Staples' shares closed at $14.82 yesterday. Analysts at Noble Financial upgraded Gastar Exploration

from Hold to Buy. Gastar Exploration's shares closed at $2.58 yesterday.