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bfg_9k | 4 months ago

Because stock trading isn't zero sum.

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laterium|4 months ago

Yes, it is negative sum after transaction costs and taxes.

bfg_9k|4 months ago

No, it's not. Person A buys stock 1, stock one goes from $10 to $15. Person A makes $5. Person B buys it at $15 and then it pays a $1 dividend, person B makes $1. It's not zero sum, everyone can win.