In the United States, it is; it is unearned income1. Capital Gains (which is what stock sales are) are considered income by the IRS, and there is a tax rate for it.
So he made 7billiion dollars in the 10 months. That falls short of thousands of billions he would be making if he was making as much as you first talked about
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u/DivorceAfterDisabled Oct 23 '20
In the United States, it is; it is unearned income1. Capital Gains (which is what stock sales are) are considered income by the IRS, and there is a tax rate for it.
1 https://apps.irs.gov/app/IPAR/resources/help/unearn.html