At Insider Monkey we scour multiple sources to uncover the next great investment idea. For example, We take a look at lists like the top 15 defense contractors in the world to identify the compounders that are likely to deliver double digit returns. We interview hedge fund managers and ask them about their best ideas. We read hedge fund investor letters and listen to stock pitches at hedge fund conferences. For example we are checking out stocks recommended/scorned by legendary Bill Miller. Our best call in 2020 was shorting the market when the S&P 500 was trading at 3150 in February after realizing the coronavirus pandemic's significance before most investors. Now let's check out the key hedge fund action surrounding GoPro Inc (NASDAQ: GPRO ).