Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. NetApp (NTAP) upgraded to Buy from Hold at Argus by analyst Jim Kelleher, who established a $46 price target on shares following recent weakness from a recent peak above $45. Kelleher believes NetApp is positioned to drive revenue and earnings growth for at least a year, driven by improving product sales and sees potential for multiyear growth as service and maintenance revenues begin to benefit from an increase in the installed base. 2. Advance Auto Parts (AAP) upgraded to Equal Weight from Underweight at Barclays by analyst Matthew McClintock saying valuation presents more balanced risk/reward for the potential benefits of a turnaround. 3. Century Aluminum (CENX) upgraded to Overweight from Neutral at JPMorgan, with analyst Michael Gambardella noting that the firm's commodities research team raised its aluminum price forecast for 2018 by 7%. 4. Estee Lauder (EL) upgraded to Market Perform from Underperform at BMO Capital. 5. lululemon (LULU) upgraded to Buy from Neutral at BofA/Merrill. 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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