Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

How do top investors pull out 20% ROI?
That is absolute rubbish.  Warren Buffet follows simple value and GARP tenants that literally anyone could follow if they had the discipline to do so.  I have never once heard of an investment made by Warren Buffet that wasn't rooted in fundamentals and easy to understand.  The concept is fairly simple as is the math, buying great companies trading at discounts to what they are worth due to market fluctuations, emotionality, or overreactions to key sectors etc.  If I buy ABC corp at $10 knowing it is worth $20, it could go down or trade sideways for FIVE YEARS doing seemingly nothing and then one day catch up with its worth due to any number of factors.  In that case, my 100% return which took five years to actualize accounts for an average 20% return per year.  Also (and this should be obvious), but diversification is a double edged sword.  Every year, hundreds of stocks individually beat the market return.  Owning any one of these stocks as your only holding would mean that YOU beat the market.  As you buy more stocks and diversify your return will get closer and closer to that of an index or mutual fund.  My advice is to stick to fundamentals like value and GARP investing, learn to separate when the market is being silly from when it is responding to a genuine concern, do your own homework and analysis on the stocks you buy, BE PATIENT after buying stock that your analysis gives you confidence in, and don't over diversify.  If you do these things, congrats.  YOU ARE Warren Buffet.