...and that's not a good thing When people hear the phrase "investing crowd," they tend to think of Main Street investors. Usually dipping their toe in the water after the trend has been underway for quite some time, they are typically seen as the "more cautious" types than Wall Street pros. Of course, there is a flip side to that "cautiousness": The "investing crowd" is known for panic-selling near market bottoms and going "all in" near major market tops. What's more, Main Street investors are not alone in their "crowd" behavior. It actually permeates most of the investment world, including the professionals.