Catch up on today’s top five analyst upgrades with this list compiled by The Fly: 1. Northrop Grumman (NOC) remains best positioned in the group, says Goldman Sachs with analyst Noah Poponak saying he continues to view Northrop Grumman as the best positioned Defense company following strong operating results and raised outlook. 2. Buffalo Wild Wings (BWLD) upgraded to Buy from Neutral at Dougherty with analyst Jeremy Hamblin saying expectations for a recovery remain low but sees margin improvement as a critical component to future success and views share risk/reward as favorable. 3. Western Gas Partners (WES) upgraded to Buy from Hold at Stifel with analyst Selman Akyol noting its transactions to strengthen its capital structure and citing his expectations for strong growth into 2018 and beyond. 4. Crane (CR) upgraded to Buy from Neutral at Seaport Global with analyst Wait Liptak citing improving sector growth rates as evidenced new orders and backlog trends. 5. Lear (LEA) upgraded to Outperform from Sector Perform at RBC Capital with analyst Joseph Spak saying third quarter results should give greater confidence into the resiliency of the company’s margins. This list is just a portion of The Fly’s full analyst coverage. To see The Fly’s full Street Research coverage, (click here.):(http://thefly.com/streetResearch.php)