Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. KeyCorp (KEY) upgraded to Outperform from Market Perform at Keefe Bruyette with analyst Brian Klock saying he sees valuation expansion as the market further appreciates the company's leading return on assets and stable earnings. 2. Exxon Mobil (XOM) and Imperial Oil (IMO) were upgraded to Overweight from Equal Weight at Barclays. 3. Westar Energy (WR) was upgraded to Outperform from In Line at Evercore ISI and to Overweight from Neutral at JPMorgan. 4. STMicroelectronics (STM) upgraded to Overweight from Neutral at JPMorgan with analyst Sandeep Deshpande citing the stock's underperformance over the past three months. 5. J.M. Smucker (SJM) upgraded to Long-Term Buy on valuation at Hilliard Lyons with analyst Jeffrey Thomison citing the recent decline in shares and maintained a $140 price target. 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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