Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Oshkosh (OSK) downgraded to Sector Weight from Overweight at KeyBanc with analyst Steve Barger saying that while he thinks Oshkosh is a better story than some other machinery names given solid execution and the potential for some growth or at least stability from its non- Access segments, he sees more room for negative catalysts than positive due to the deceleration in macro data, a growing view that AWP will be flat-to-down next year, and order and backlog contraction against a tough comp from FY19. 2. Square (SQ) downgraded to Underperform from Outperform at Evercore ISI. 3. Adaptimmune (ADAP) downgraded to Neutral from Buy at Guggenheim with analyst Michael Schmidt saying he believes visibility into the opportunity for the company's pipeline remains limited, particularly following discontinuation of the MAGEA10 program, reports of 3 new patient deaths, and resignation of the company's CMO. 4. Hilton Grand Vacations (HGV) downgraded to Underweight from Neutral at JPMorgan with analyst Brandt Montour saying he expects poor sentiment to weigh on shares until the company's contract sales reaccelerate in a consistent way, which he feels is not likely until 2020. 5. Valaris (VAL) downgraded to Market Perform from Outperform at Wells Fargo with analyst Coleman Sullivan saying he reduced his EBITDA forecasts through 2021 to account for revised rig startup assumptions, more conservative utilization and dayrate assumptions on floaters and revised cost assumptions. Sullivan, who continues to be disappointed by the lack of contracts at rates peers are able to achieve, sees the company's outlook having more inherent risk going forward. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.