‘Dumb Money,’ the movie based on the 2021 GameStop trading frenzy, comes up short

This post originally appeared in the Insider Today newsletter. When individual investors sent shares of so-called meme stocks skyrocketing in early 2021, putting billion-dollar hedge funds on their heels, one thing seemed obvious: This would make a helluva movie. More than two years later, we get to see for ourselves. “Dumb Money,” which opens for…