Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Eaton Vance (EV) downgraded to Underweight from Neutral at JPMorgan with analyst Kenneth Worthington saying the company's slowing organic growth will cut into its premium market valuation. 2. CME Group (CME) downgraded to Neutral from Buy at UBS with analyst Alex Kramm saying he believes the current valuation already reflects a higher volatility environment. 3. Ceragon Networks (CRNT) downgraded to Hold from Buy at Needham with analyst Alex Henderson saying the company has delivered "solid results" and that its stock has benefited from strong execution and expectations of further improvement from 5G build-outs, but believes its valuation reflects the positive news. 4. Cracker Barrel (CBRL) downgraded to Underperform from Hold at Gordon Haskett analyst Jeff Farmer saying the share price run-up of 22% over the last 8 weeks is outpacing the company's fundamental prospects. 5. YY (YY) downgraded to Neutral from Overweight at JPMorgan with analyst Alex Yao citing a lack of catalysts for his downgrade of the shares. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.