BlackRock CEO Larry Fink once told a story about having dinner with the investment manager of one of the world's largest sovereign-wealth funds. The fund's objectives, the manager said, were generational. "So how do you measure performance?" Fink asked.
"Quarterly," said the manager.
Even rational, level-headed investors probably check their portfolios too much. That can stress us out and give us a false sense of what "risk" truly is.
In this video, Fool analysts Morgan Housel and Matt Koppenheffer discuss how closely investors should follow their stocks.
