Corporate insiders and members of Congress see things the rest of us don’t. When they spend their own money buying shares in companies tied to their own decisions, it’s worth paying attention to — decades of academic research have found that clusters of insider buying, in particular, tend to precede stock outperformance more often than chance would suggest. That doesn’t make any single filing a signal to act on; it’s one data point, not a recommendation. It’s why we track every disclosure the moment it’s filed, instead of leaving it buried in SEC paperwork.

Today’s Signals