Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Ormat Technologies (ORA) upgraded to Overweight from Neutral at JPMorgan with analyst Paul Coster saying he believes the company is well positioned to continue posting revenue growth and margin expansion over the next few years. 2. Tenet (THC) upgraded to Outperform from Market Perform at Leerink. 3. Cott Corp. (COT) and Dr Pepper Snapple (DPS) were upgraded to Outperform from Market Perform at BMO Capital. 4. Sun Life Financial (SLF) upgraded to Outperform from Sector Perform at RBC Capital with analyst Darko Mihelic saying net flows and Assets Under Management at the company's MFS unit have improved over the last two months. He also notes that the stock has fallen about 12% since February. 5. Valvoline (VVV) upgraded to Buy from Neutral at Seaport Global with analyst Michael Harrison saying he expects the oil market to return to looser supply/demand and pricing to decline in the summer once Motiva completes its Port Arthur, TX turnaround in June, which would be a positive for Valvoline margins. 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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