A portfolio should be diversified by limiting individual stock holdings to no more than 10 percent of the total portfolio value.

“I try not to have anything above 10% as a holding. Cash is my only variance that hey like that doesn't matter. But everything else I try not to keep it, you know, anything above 10%.”

Investors should be aware of market concentration risks and avoid piling into mega-cap stocks.

“it's being aware of this and not going out and piling into more Nvidia in a single stock basis, and trying to run that AI team even harder.”

Shawn O'Malley supports simplifying the portfolio by removing TransDigm and Copart to focus capital on higher-conviction bets like Amazon.

“And why not double down on that business when you have that feeling.”

Investors should avoid over-diversifying by splitting SIPs goal-wise because it leads to holding too many funds.

“if you end up splitting sips goalwise then unfortunately what will happen is you will add so many funds to your portfolio that you will end up over diversifying yourself”