'When things are lower, buy some' -CIO on stock prices
STORY: U.S. stocks were sharply lower on Tuesday afternoon, with Nasdaq down more than 2%, as a profit warning by Walmart dragged down retail shares and fueled fears about consumer spending.
"If there's an asset that you want to own and it's 20% cheaper than when you made the decision to buy it, then you certainly ought to buy some," said Hirtle.