How much cash should I keep in my portfolio

[Valuegrowth]

SBQ

I think even WB raise cash when he see extended value in stocks and then keep them until he find good investments. If I am correct,this time Berkshire have posted $35.5 B profits. But they have sold over $13 B in stocks.

https://money.usnews.com/investing/s...tt-just-bought

https://finance.yahoo.com/news/warre...092800591.html

https://edition.cnn.com/2023/05/16/i...%20term%20bets.