A nasty little comeback
US inflation hit 4.2% in May, up from 2.4% before the Iran conflict started. That’s not exactly the kind of comeback investors were hoping for — more “sequel nobody asked for” than victory lap.
Why it matters
The culprit here is energy, and specifically the closure of the Strait of Hormuz, which has thrown a wrench into oil and fuel flows. When energy gets pricier, it doesn’t just hit your gas bill — it can seep into shipping, manufacturing, airline costs, and basically every other corner of the economy like glitter at a craft party.
The market takeaway
Three straight monthly increases is the part that should make markets sit up a little straighter. It suggests inflation isn’t just a one-off blip; it may be getting re-energized by a real external shock.
That matters because sticky inflation can keep the Fed on a tighter leash for longer, which is usually bad news for duration-heavy assets and rate-sensitive names.
Big picture: if energy stays elevated, inflation could keep acting like that one friend who says they’re leaving the party but somehow keeps the music going.