Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Starbucks (SBUX) downgraded on more cautious U.S. comp sales outlook at BMO Capital with analyst Andrew Strelzik saying he's "more cautious" on the outlook for the company's U.S. comparable sales, partly due to increased cannibalization of stores, increased competition, "throughput headwinds," and the possibility that "contributions from beverage innovation and food growth may have peaked." 2. Albemarle (ALB) downgraded to Hold from Buy at SunTrust with analyst James Sheehan citing recent share strength. 3. Dean Foods (DF) downgraded to Market Perform from Outperform at Wells Fargo with analyst John Baumgartnerm citing the second quarter miss and "big" guidance reduction. 4. Air Lease (AL) downgraded to Neutral from Buy at BofA/Merrill with analyst Kristine Liwag citing valuation. 5. AIG (AIG) downgraded to Neutral from Overweight at Atlantic Equities. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.