Financial stocks in the have taken a beating this year, performing the worst out of 10 S&P macro sectors. But the drop provides a window to snatch up financial stocks at cheap prices, an analyst said on Thursday.

"We'd use this selloff as an opportunity to really pick up a number of highest-quality businesses at great prices," David Katz, president and chief investment officer of Matrix Asset Advisors, said in an interview on CNBC's "Street Signs."