Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Dollar General (DG) upgraded to Outperform from Underperform at Wells Fargo with analyst Edward Kelly saying performance at the company has improved recently, and the momentum should accelerate in 2018. 2. Dick's Sporting (DKS) upgraded to Positive from Neutral at Susquehanna with analyst Sam Poser saying he believes earnings results should surprise to the upside given a low bar and weather that was not as bad as expected, which drove better sales trends. 3. Caterpillar (CAT) upgraded to Buy from Neutral at Seaport Global with analyst Michael Shlisky citing fourth quarter dealer checks and discussions with the company and competitors. 4. ResMed (RMD) upgraded to Hold from Underperform at Needham with analyst Mike Matson saying he now believes the company can sustain higher revenue growth over the next few years and is positioned to drive sustained operating leverage. 5. HP Enterprise (HPE) upgraded to Overweight from Equal Weight at Morgan Stanley with analyst Katy Huberty saying she believes that declines at the legacy Enterprise Group will moderate in 2018 and be offset by upward trending IT budgets and near-term growth from hyperconverged, flash and network security. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage,
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