Sell the risky stock that has inflated in value from hype cycle exuberance and re-invest proceeds into lower risk asset classes not driven by said exuberance. "Taking money off the table." An example would be taking ISO or RSU proceeds and reinvesting in VT (Vanguard Total World Stock Index Fund ETF) or other diversified index funds.

Taking money off the table - https://news.ycombinator.com/item?id=45763769 - October 2025 (108 comments)

(not investing advice)

What tomuchtodo said. When I left Sun in 1995 I had 8,000 shares, which in 1998 would have paid off my house, and when I sold them when Oracle bought Sun after a reverse 3:1 split, the total would not even buy a new car. Can be a painful lesson, certainly it leaves an impression.