Regional U.S. banks were back in the spotlight in mid-October – prompting market fears about deteriorating credit. Zions Bancorp’s $50m charge-off from a loan issued by a wholly owned subsidiary, claiming fraudulent behavior by the borrower, followed by Western Alliance confirming exposure to the same borrower credit escalated concerns. This comes weeks after bankruptcies of Tricolor, a subprime auto lender, and First Brands, an auto parts supplier. However, early evidence suggests these cases are isolated and not a broader systemic issue, believes Garrett Melson, Portfolio Strategist, Natixis Investment Managers Solutions. “On net, banks have been tightening standards across commercial real estate, commercial and industrial loans (see chart), and consumer loans for going on three years now,” said Melson.