單純看你上麵這句不能股票賣掉去抵carryover的loss

股票收入是capital gain Capital gains are typically portfolio and not passive

rent losses are passive losses, they can only offset passive income. Wages, capital gains, retirement income, and investment income can't be offset with passive income. 

如果上麵的例子是 A disposition   if the taxpayer’s entire interest in the activity is disposed of in a fully taxable transaction to an unrelated party 

Disposing of an Activity to Release Suspended Passive Losses

https://www.thetaxadviser.com/issues/2008/may/disposingofanactivitytoreleasesuspendedpassivelosses.html#:~:text=A%20disposition%20generally%20occurs%20if,469(g)(1)).