Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Dollar Tree (DLTR) upgraded to Buy from Hold at Loop Capital with analyst Anthony Chukumba saying the core segment is performing well while management will find a way to create shareholder value from the struggling Family Dollar segment. 2. Cypress Semiconductor (CY) upgraded to Overweight from Equal Weight at Barclays with analyst Blayne Curtis citing the likely USB-C wins at Apple (AAPL) for the upcoming iPhone 8 cycle. Apple is moving to USB-C connectors for its chargers and including silicon in the iPhones/iPads to enable fast charging, Curtis tells investors in a research note. The analyst believes the content win is accretive to Cypress' gross margins and should also help boost fab utilization. He also views the company's core business as strong. Curtis raised his price target for the shares to $18 from $14. 3. Expedia (EXPE) upgraded to Buy from Neutral at Citi with analyst Mark May saying owning "strong Internet franchises" during periods of positive growth inflection points is typically a good formula. 4. UMC (UMC) upgraded to Buy from Neutral at UBS. 5. Koppers Holdings (KOP) upgraded to Buy from Hold at Wunderlich with analyst Liam Burke citing a more positive outlook for the company's Carbon Materials and Chemicals unit. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.