They didn't just outperform "normal" congress critters.. they also outperformed nearly every hedge fund on the planet. But they (meaning, of course, just one person and their spouse) are obviously geniuses.
Hedge funds suck though. They don’t invest in FAANG, they do risky stuff that doesn’t pay off, you are still comparing incomparable things.
I’m obviously a genius because 90% of my stock is in tech, most of us on HN are geniuses in your opinion?
Hedge funds’ goals are often not to maximize profit, but to provide returns uncorrelated with the rest of some benchmark market. This is useful for the wealthy as it means you can better survive market crashes.