(Bloomberg) -- JPMorgan Chase & Co.’s credit grade was raised one notch by S&P Global Ratings, which pointed to the bank’s ability to weather economic shifts after years of wresting market share from rivals.Most Read from BloombergUnder Trump, Prepare for New US Transportation PrioritiesZimbabwe City of 700,000 at Risk of Running Dry by Year-EndSaudi Neom Gets $3 Billion Loan Guarantee From Italy Export Credit Agency SaceThe Urban-Rural Divide Over Highway Expansion and EmissionsS&P boosted the