Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Chipotle (CMG) downgraded to Sector Perform from Outperform at RBC Capital with analyst David Palmer citing valuation. 2. Ryder (R) downgraded to Equal Weight from Overweight at Stephens. 3. Express Scripts (ESRX) downgraded to Hold from Buy at Edward Jones. 4. Nielsen (NLSN) downgraded to Market Perform from Outperform at Telsey Advisory with analyst Tom Eagan saying Nielsen reported mixed results with the Buy division reported weaker than expected sales and is concerned structural issues pressuring this segment will continue. 5. SAP (SAP) downgraded to Sell from Hold at Stifel with analyst Brad Reback citing valuation and the company's weaker than expected margins last quarter. 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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