Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Universal Display (OLED) upgraded to Buy from Hold at Gabelli with analyst Hendi Susanto saying he views the negative market response to a Bloomberg report that Apple (AAPL) is designing and producing MicroLED display prototypes as an overreaction and a buying opportunity. 2. Oneok (OKE) upgraded to Buy from Hold at Jefferies with analyst Christopher Sighinolfi saying he is confident in Oneok's ability to hit target returns on $4.2B of its current projects following a recent meeting with management. 3. PPG (PPG) upgraded to Buy from Hold at Deutsche Bank with analyst David Begleiter saying he believes the company's capital deployment and "valuation discount" are attractive. 4. Roku (ROKU) upgraded to Perform from Underperform at Oppenheimer with analyst Jason Helfstein upgraded Roku (ROKU) to Perform citing valuation and the company's opportunity in virtual multichannel video programming distribution. 5. Arena Pharmaceuticals (ARNA) upgraded to Buy from Hold at Needham with analyst Alan Carr citing the company's "impressive results" from its Phase 2 Ulcerative Colitis study, noting that the the safety and tolerability data components are also "encouraging." This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.

Get caught up quickly on the top news and calls moving stocks with these five Top Five lists.  1... To see the rest of the story go to thefly.com. See Story Here

Get caught up quickly on the top news and calls moving stocks with these five Top Five lists.  1... To see the rest of the story go to thefly.com. See Story Here

Check out this evening's top movers from around Wall Street, compiled by The Fly. HIGHER AFTER EARNINGSSnap (SNAP) up... To see the rest of the story go to thefly.com. See Story Here

Pre-earnings options volume in Roku is 1.7x normal with calls leading puts 3:2. Implied volatility suggests the market is anticipating a move near 12.6%, or $7.87, after results are released. Median move over the past eight quarters is 17.1%.