neroden
Model S Owner and Frustrated Tesla Fan
In the actual interview he said that he believes that you should limit your investments to 2-3 investments because that's the limit of of what you can understand really well.
Yeah, my limit of diversification due to *ability to research* seems to be roughly 7 investments right now. Though two are easy (one is a fire-and-forget merger arb, where I only had to do the research once and it either works or it doesn't; one is a super-stable non-leveraged real estate fund, kept as diversification against general stock market downturns other than the sort which happened in 2008, and yes, I do read the actual list of what buildings they own). And I suspect I'm not paying enough attention to two of them.
My grandmother could usually handle 10 investments at a time but I think that is really the limit for almost anyone. And that counts separate positions in "baskets" separately, which is probably not correct in terms of attention: if you're trying to span an industry because you know the industry is good but you don't know which company will win out most, and you buy the 3 stocks in the industry which you think are most likely to do best, you're really only doing one set of research.
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