One thing worth knowing is how the greatest investor of all time, Warren Buffett, is sitting on a massive cash pile, despite the market being at an ATH.

To be exact, through Berkshire Hathaway, it now sits at $397 billion, up 4x since 2022.
Most people interpret this as a top signal, without understanding the context.
The cash pile doesn't have a single reason behind it.
Yes, he has stated that valuations are stretched and finding large-caps at reasonable prices is getting harder. Buffett described the current market as a "pond that's been overfished."
But people forget that Berkshire is a holding company, not an asset manager.
It needs to cover structural necessities. A portion of the cash is needed to back Berkshire's insurance operations like GEICO against catastrophic events.
And at their size, sustainability takes priority over aggression. They park their cash in Treasury bills because the current rate environment makes it a perfectly sensible trade.
So no, it's not fear. It's a combination of structural needs and the nature of Berkshire as a holding company.
Don't run away and exit the market. If anything, this is one of the best times to invest, with Bitcoin at a relatively cheap valuation compared to the S&P 500.