Bank of America’s Mark Cabana just dropped a phrase that should make every fixed-income investor sit up straight: “textbook inflation credibility shock.” The strategist warned on August 3 that US Treasuries will resume their retreat unless the Federal Reserve gets significantly clearer about how it plans to bring inflation back to 2%.

Long-dated Treasury yields had already climbed to levels not seen in nearly 20 years the week prior.

The numbers behind the warning

Here’s the situation. Core PCE inflation, the Fed’s preferred gauge, clocked in at 3.3% in June. That’s well above the 2% target the Fed has been talking about hitting for what feels like an eternity.

The federal funds rate has been parked at 3.50-3.75% through July under Chair Kevin Warsh. And BofA now thinks that’s about to change in a big way.