If they own small-cap index funds, chances are they are exposed, but they have a de minimis impact on investment returns, says Morningstar.

Since 2015, Fidelity has been defaulting client cash in retail brokerage accounts to their U.S. government money market fund. Today, they took the opportunity to compare that default cash yield to competitors'.

Educating sponsors is an essential first step.

ETFs are largely passively managed, but the index providers they rely on vary, even within the same markets.

Many advisors have trained their clients to expect the kind of market volatility seen Monday. And while most aren’t making any sudden movements, some are tweaking asset allocations.