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A comment on Travis Kalanick Is Exiting His Uber Holdings Uber Quickly. Parent comment

Re:Travis Kalanick Is Exiting His Uber Holdings Uber Quickly by perl4ever on Monday December 16, 2019 @11:11PM (#21810477)
Diversification can mean different things to different people.

If you mean that >30 stocks is pointless, I agree. How much different is the Dow than the S&P 500 or the whole market, even though its methodology is atrocious?

If you mean that even with a large edge, you should take positions that are >20%, I don't agree.

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Re:Travis Kalanick Is Exiting His Uber Holdings Uber Quickly by manigandham on Monday December 16, 2019 @11:47PM (#21810695)
Then we don't agree. The concentration of a position depends on the confidence of the investment and direction. 20% isn't a magical rule, no point in following it blindly.
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Re:Travis Kalanick Is Exiting His Uber Holdings Uber Quickly by perl4ever on Tuesday December 17, 2019 @08:37PM (#21820962)
I mean, it's like sticking a knife in an electrical socket. Can you get away with it, possibly? Sure. That doesn't mean there's a significant downside to a rule of not doing it.
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