US Market volatility could spike short term -CIO

STORY: She adds this possibility could lead to short term changes to economic indicators making it hard for the Federal Reserve to accurately gauge the health of the U.S. economy in the months to come.

"So you're pulling people out of the labor force. And then you've got the potential for a government shutdown. And with those combined, you could get some really muddy data. So then the markets could fret about whether or not the Fed is going to have clear enough data to actually make a good call in the November meeting."