Not sure if this is the answer you want, but the answer is diversification.Question is why the excessive liquidity that allows this.
Is it really due to fundamentals like earnings growth?
it has only been in mega caps, while the rest of the market has not broken through. So only the top 7-10 stocks in the S&P.
When the liquidity stops, then what??
To me, that starts with your home (gotta have a place to live) and includes conservative investments and even a few riskier ones.
IMO, it's all about being prepared. Play the long game. Protect your portfolio as you age!
In the meantime most of America is enjoying their 401K accounts.