Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. VMware (VMW) upgraded to Buy from Hold at Stifel with analyst Brad Reback upgraded the stock based on what he calls "a series of strong earnings results" by the company. 2. CDK Global (CDK) upgraded to Outperform from Market Perform at Wells Fargo with the firm saying it is upbeat on the company's business plan and its ability to raise its margins. Wells thinks that the company's margins can reach 35% in fiscal 2018 and 40% over the longer term. It calls the stocks valuation attractive. 3. AGCO (AGCO) upgraded to Neutral from Sell at UBS with analyst Steven Fisher citing improved business conditions. The analyst said valuation remains expensive relative to history, but he no longer sees a near-term downside catalyst and believes the company could raise its European forecast. Fisher raised his price target to $68 from $52 on AGCO shares. 4. PayPal (PYPL) upgraded to Overweight from Sector Weight at Pacific Crest with analyst Josh Beck saying its Choice and Venmo strategies are moving from investment to "harvesting mode." 5. Oneok (OKE) upgraded to Buy from Hold at Argus with analyst David Coleman citing valuation. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage click here.