Forum Discussion
time2roll
Mar 07, 2020Nomad
mich800 wrote:If there are 10 people in a room and each has 100 shares and 1,000 dollars..... You can trade with each other all day long in any combination. The room still has a net total 1,000 shares (10 x 100) and $10,000 in cash (10 x $1,000) Yes some will win, some will lose. Net sum is zero because within the room as a whole the total is unchanged. Zero sum. QED
You may need to rerun the math. Person in my example made $400. And I would be even unless I sold at the end of trading day. Why are you assuming there is a buyer and seller that coincidentally have the exact cost basis?
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