Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Kellogg (K) upgraded to Outperform from Neutral at Credit Suisse with analyst Robert Moskow saying he believes Kellogg's portfolio changes and reinvestment spending over the past two years will provide sustainable revenue growth, margin expansion, and high-single-digit earnings growth. 2. Micron (MU) upgraded to Outperform from Market Perform at Cowen with analyst Karl Ackerman saying his work indicates DRAM fundamentals may improve earlier than expected. 3. Square (SQ) upgraded to Buy from Neutral at BofA with analyst Jason Kupferberg saying sentiment on the shares remains mixed following the significant underperformance in 2019. 4. Akamai (AKAM) upgraded to Buy from Neutral at Guggenheim with analyst Robert Gutman saying he believes the company's traffic trends remained strong in Q4 and that it remains well positioned in 2020. 5. FireEye (FEYE) upgraded to Buy from Hold at SunTrust with analyst Joel Fishbein saying recent events in Iran and Iraq have put the spotlight on cybersecurity and will lead to increased government and private sector spending in both fiscal 2020 and 2021. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.