What's the Marginal Buyer?

i'm pretty favorable in health cure, a at the current time. But i don't really like financials either. Thethey're kind of neutral for meo,. That's great. Now, this next chartist is em us equity ations. And so what that chart shows right now is that americans have never had a higher percentage of their assets in equities as they do right now. They're the highest ever equity ation they've had. So basiclly, we have to ask ourselves, where is the marginal buyer going to come from?