 Is it time to run with the bulls? Writing from investment bank JPMorgan, quantitative strategist Marko Kolanovic says it is. You may remember Kolanovic, if you follow market news regularly; he was one of the few who correctly called the bottom back in March. Now he says that the near- to mid-term prospects remain bullish. He notes two points of particular importance for investors, economic support policies, and the ongoing COVID-19 epidemic.Regarding policy support, Kolanovic is quick to connect recovery in liquidity with the massive fiscal and monetary support put in place by Congress and the Federal Reserve. He reminds investors that liquidity has recovered meaningfully from the March lows.The second point is more subtle. Kolanovic writes, Higher COVID-19 incidence in mainly impacting younger populations, with drastically lower mortality rates and likely reflects high testing rates, recent protests, backlogs of hospital visits, and increased economic activity. In other words, as we return to normal life, more people are getting exposed to the virus but the people getting exposed are more resistant to the disease, and the death rates are dropping. The coronavirus crisis is turning out less dangerous than was originally feared, and that is good news especially for stock bulls.Kolanovics colleagues at JPM have run with his bullish view, and are pinpointing stocks that have great upside potential. Weve used the TipRanks database to pull the details on three of those stocks the upsides start at 22, but lets see what else makes them compelling to JPMs experts.Warner Music Group WMGAfter a nine-year run as a private company, Warner Music, the global music industrys third largest recording company, completed a new IPO just last month. The stock sale raised almost 2 billion, and was considered a smashing success. Music is a competitive industry, and Warner has some aces in the hole. The company owns recording rights to a slew of big-name artists, including Madonna, Prince, the Rolling Stones, and Metallica. This playbook is an enormous asset, and one that puts Warner on solid footing.With just one month of market trading behind it, WMG hasnt got a long history for analysts to review but it does have that playbook, and JPM analyst Alexia Quadrani is suitably impressed. Quadrani writes, As the only pure play music content company, WMG is well-positioned to benefit from the ongoing growth in paid music streaming globally. We believe WMG shares will maintain a premium valuation over the average of our large-cap media universe due to its higher growth profile, and our outlook reflects our confidence in the growth of streaming and WMGs execution.To this end, Quadrani rates WMG a Buy and suggests a 40 price target, which implies a robust upside of 36. To watch Quadranis track record, click hereIn its first month since the IPO, WMG shares have earned a Moderate Buy rating from the analyst consensus. Wall Streets stock watchers are divided 7 to 8 on Buys and Holds, mainly reflecting caution during the coronavirus crisis. The stocks 33.64 average price target indicates a one-year upside potential of 15 from the current share price of 33.64. See WMG stock analysis on TipRanksVaronis Systems, Inc. VRNSWith so many people moving to remote work, data security is at a greater premium than ever. Varonis Systems, a security software company, offers a platform that is perfect for the times. Using digital behavior analysis techniques, Varonis platform allows businesses to identify cyberattacks based on abnormal user behavior. Its an idea whose time has clearly come, and Varonis is running with it. The companys newest platform features remote work security capability.That doesnt mean the company was able to fully dodge the corona bullet. The broad declines in Q1 due to the social and economic lockdown policies put a hurt on VRNS. The company reported steep losses in earnings, seeing the net loss drop sequentially from 47 cents to 1.05. Revenue performed better, beating the forecast at 54.18 million.The stock, however, has performed better than the earnings, rising nearly 27 year-to-date.Sterling Auty, 5-star analyst with JPM, lays out a clear case to explain Varonis strong share appreciation: We believe Varonis represents one of those attractive situations as its subscription transition offers the opportunity for significant outperformance relative to revenue and margin estimates that we believe can deliver stock outperformance. This is aided by the growing need for data security solutions as cloud adoption increases and work-from-home setups drive usage of tools that create security challenges.Autys Buy rating on the stock is supported by his 130 price target, which indicates room for a potential 31 upside in the coming year. To watch Autys track record, click hereOverall, Varonis has a Strong Buy rating from the analyst consensus, based on 11 Buys versus just 2 Holds. The stocks recent share gains, however, have pushed the price almost up to the average price target. VRNS currently trades at 98.58; the average target is 100.36. See Varonis stock analysis on TipRanksMasonite International DOORLast on our list is a major name in the construction industry. Tampa-based Masonite, through its subsidiary companies, manufactures doors and their associated systems frames, screens, windows, and locks for both interiors and exteriors. Its a niche product, but an important one; even a small house can have two exterior doors and 8 or 10 interior ones.Masonite posted a strong Q1, despite the corona crisis. Net sales increased 4, reaching 551 million. EPS rose sharply, too, to 1.24. These gains came even as the company withdrew its full-year 2020 guidance due to COVID-19 concerns.JPMs Michael Rehaut likes what he sees in Masonite, noting, Not only did the company provide a positive sales update pointing to June sales down only mid single-digits with N. America Residential up modestly, following May down low teens but importantly, DOOR also pointed to some positive margin trends as well,We point to the companys pricing strategy, strong execution and longer term margin optimization efforts as positive differentiators, along with its attractive relative valuation trading at only roughly 8.5x and 7.3x our 2020E and 2021E EBITDA, respectively, the analyst concluded. In line with his comments, Rehaut puts a 95 price target and a Buy rating on DOOR shares. His target implies an upside of 22 for the next 12 months. To watch Rehauts track record, click hereDOOR is another stock with a Strong Buy consensus rating, in this case based on 6 Buys and 2 Holds. Shares are currently trading at 77.54, and the average price target of 85.38 suggests a one-year upside of 10. See Masonites stock-price forecast on TipRanksTo find good ideas for stocks trading at attractive valuations, visit TipRanks Best Stocks to Buy, a newly launched tool that unites all of TipRanks equity insights. 