The war in Iran is stress-testing budget airlines, highlighting weaknesses in the model itself and raising fresh concerns for investors, travelers and policymakers. Jet fuel prices have roughly doubled since the U.S. and Israel attacked Iran on Feb. 28, and the pressure on airlines hasn’t been evenly felt. Airlines with more pricing power can just...

The Federal Reserve’s decision Wednesday to keep its benchmark interest rate steady is unlikely to budge mortgage rates for a couple of reasons.For starters, the Fed’s latest decision was about as surprising as your picky eater ordering chicken tenders off the kids’ menu. Mortgage markets saw it coming and already priced in a monetary policy...