On The Fly: Top five analyst upgrades

Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Disney (DIS) upgraded to Overweight from Equal Weight at Barclays with analyst Kannan Venkateshwar saying the stock is likely to become a "core holding" again. 2. Dentsply Sirona (XRAY) double upgraded to Buy from Sell at Goldman Sachs with analyst Nathan Rich saying he now believes consensus estimates are achievable and that Dentsply's valuation is attractive relative to Medtech peers. 3. PayPal (PYPL) upgraded to Buy from Neutral at BTIG with analyst Mark Palmer saying the company's Venmo monetization progress was the deciding factor in his rating change. 4. Roku (ROKU) upgraded to Outperform from Sector Perform at RBC Capital with analyst Mark Mahaney saying the company's valuation has become more attractive following a 25% pullback in its stock price but believes Roku offers the "best opportunity for upwards estimates revisions." 5. O'Reilly Automotive (ORLY) upgraded to Overweight from Neutral at JPMorgan with analyst Christopher Horvers saying he sees "strong" fundamentals with "structurally positive industry factors." This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.