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A comment on Building AI Trading Systems. Parent comment

Re:Building AI Trading Systems by powvans on Friday June 26, 2020 @10:40PM (#23659090)
Warren Buffett doesn't buy stocks on Robinhood because they couldn't handle his volume. I saw him quoted somewhere not long ago saying that if he was working with a "small portfolio", a few hundred thousand dollars or maybe it was even a few million, that he was quite certain he could return in excess of 100% annually.

But yes, picking stocks is probably not as effective for most people as buying an index fund.

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Re:Building AI Trading Systems by xmaayyy on Friday June 26, 2020 @11:04PM (#23659183)
He said the bit about returning 100% in a very old Berkshire meeting (90s). He's recently commented that the market has become either too volatile or crowded to allow the same type of value investing that got him to where he is
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Re:Building AI Trading Systems by teruakohatu on Saturday June 27, 2020 @01:06AM (#23659643)
He could probably use BH to manipulate the market so his mini-portfolio would have crazy returns. This is one of the theories behind the infamous Medallion fund.

I doubt he could without using or BH insider info.

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