Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Disney (DIS) upgraded to Neutral from Sell at BTIG with analyst Richard Greenfield saying the rating change was prompted more by the commentary from CEO Bob Iger on CNBC than by the company's investor day presentation unveiling Disney+. 2. Western Digital (WDC) upgraded to Buy from Neutral at Longbow with analyst Nikolay Todorov saying NAND fundamentals are bottoming and "there is a line of sight to cyclical recovery." 3. Dow Inc. (DOW), Huntsman (HUN), LyondellBasell (LYB), and Eastman Chemical (EMN) upgraded to Buy from Neutral at Nomura Instinet, while Olin (OLN) and Westlake Chemical (WLK) were upgraded to Neutral from Reduce. 4. Waste Management (WM) upgraded to Buy from Hold at Stifel with analyst Michael Hoffman saying even with potential divestitures to get the deal approved, adding Advanced Disposal "dramatically lowers" Waste Management's cost of capital, reduces capital spending, converts more of the fleet to CNG, and stimulates tuck-in activity that should all drive sustainable free cash flow growth. 5. Sony (SNE) upgraded to Buy from Hold at Jefferies. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.