Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Etsy (ETSY) upgraded to Outperform from Sector Perform at RBC Capital with analyst Shweta Khajuria saying she views the stock's risk/reward as attractive. 2. Herc Holdings (HRI) was double upgraded to Buy from Sell at Goldman Sachs while United Rentals (URI) was upgraded to Buy from Neutral. 3. Costco (COST) upgraded to Accumulate from Hold at Gordon Haskett with analyst Chuck Grom citing a meeting with CFO Richard Galanti that he called "bullish." 4. Aecom (ACM) upgraded to Buy from Hold at Argus with analyst John Staszak citing the company's transition to a "professional services business model," reducing its G&A costs by $225M by exiting from noncore markets, reducing its debt, and spinning off its management services division. 5. LiveRamp (RAMP) upgraded to Strong Buy from Outperform at First Analysis with analyst David Gearhart saying after hosting investor meetings with management, the analyst has greater appreciation for the company's offering and market position. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.