The Rhyme: Core PCE Re-Accelerates Into 5% Yields & Its 2005 Echo

"History doesn't repeat… but it rhymes." — Mark Twain

The Fed's preferred inflation gauge moved the wrong way this morning. August core PCE came in at 3.4% year-over-year, up from 3.3%, the first acceleration since May, while Q2 GDP was confirmed at a sluggish 1.5%. The 10-year Treasury yield, already sitting at 5.24%, is now one tick from its June 2007 peak of 5.26%. The last time the Fed chose to hike through an oil shock with the rate sitting at exactly 3.75%, the decision made sense for about eighteen months. Then it stopped making sense all at once.

Core PCE 3.4% YoY (prev. 3.3%)  |  GDP Q2 Final 1.5%  |  10Y Yield 5.24%  |  Brent $107  |  Fed Funds 3.75–4.00%

The phones at the Eccles Building started ringing well before dawn on September 20, 2005. Hurricane Katrina was three weeks old by then — twenty-two days since a Category 3 hurricane had torn across the Gulf Coast, drowned New Orleans, and shut down ninety percent of American offshore oil production in a single night. But the aftermath was still playing out at gas stations from Atlanta to Charlotte, where pumps had run dry and owners taped hand-written signs reading "NO GAS" to the handles and went home. West Texas Intermediate crude had spiked above $70 a barrel, a number that made front pages everywhere. Gasoline hit $3.07 a gallon nationally. In North Carolina, some stations charged nearly six dollars.

Inside the Fed's boardroom on Constitution Avenue, twelve people took their seats at nine in the morning to answer a question that should have been simple: do you raise interest rates three weeks after the worst natural disaster in American history? Alan Greenspan, in his final year as chairman, steered the room toward a single calculation — which mattered more, the growth hit or the inflation risk? The Gulf Coast refineries processed eight million barrels a day before the storm. Many were still dark. Oil and gas prices were feeding through to trucking costs, electricity bills, and everything else that moved. If the Fed paused, the market would read weakness. If the Fed hiked, it would read resolve.

They hiked. The vote was 9-to-1. Only Governor Mark Olson dissented, wanting more time to see how deep the damage went. The official statement was careful but blunt: Katrina's devastation was real, but it did not "pose a more persistent threat" to the economy. The fed funds rate went to 3.75%. Markets barely flinched. The Greenspan playbook said the economy could handle it, and in September 2005 almost everyone believed him.

What nobody in that room was watching — what almost nobody anywhere was watching — was the fine print in the mortgage market. Subprime loans had quietly climbed to twenty percent of new mortgage originations that year. A fund manager named Michael Burry had closed his first credit default swap against subprime mortgage bonds four months earlier, betting sixty million dollars with Deutsche Bank that the housing market was a fraud. He was early, and he was alone. In September 2005, home prices were still climbing, unemployment was low, and the only visible problem was at the gas pump.

Greenspan's Fed would go on to hike six more times, pushing the rate all the way to 5.25% by June 2006. Core PCE climbed from 2.0% to 2.4%. The 10-year Treasury yield touched 5.25%. And then the hidden thing broke. New Century Financial went bankrupt in April 2007. Bear Stearns' hedge funds blew up that June. Lehman Brothers collapsed in September 2008. The S&P 500 fell from 1,565 to 666 — fifty-seven percent — by March 2009.

The fed funds rate is the same. The playbook is the same. The Fed hikes through the oil shock because inflation scares it more than recession. The question is what's hiding underneath.

After Greenspan hiked through Katrina on September 20, 2005, markets were calm for a surprisingly long time. The S&P 500 kept climbing — steadily through 2006, on through the spring and summer of 2007 — eventually reaching 1,565 on October 9, 2007, more than two full years after the hurricane hike. If you owned stocks on September 20, 2005, you made money for twenty-five straight months before anything went wrong.

The timing matters. It took nine months for core PCE to peak at 2.4%, in June 2006. It took another ten months for the first major corporate casualty — New Century Financial filed for bankruptcy in April 2007 after its subprime portfolio disintegrated. Bear Stearns' hedge funds needed a $3.2 billion rescue by June. BNP Paribas froze three funds in August. And it was a full three years before Lehman Brothers died on September 15, 2008, sending the financial system into a crisis that rate cuts alone could not fix.

The uncomfortable lesson from 2005 is this: the Fed can be right about inflation and still cause a catastrophe. Greenspan's hikes did bring core PCE back down. But by then, the collateral damage in the mortgage market had spread so far that the cure was worse than the disease. Michael Burry wasn't betting on rates. He was betting on the structure underneath — the thing the consensus assumed was solid because nobody had bothered to look.

Today the structure is different, but the logic is identical. The Fed will keep hiking because the PCE data says it must. Inflation will likely slow eventually. But the thing that breaks won't announce itself in an inflation report. It will surface in a corner of the market where leverage is high, liquidity is thin, and everybody assumed someone else was watching.

In 2005 the signal wasn't the rate hike itself — it was the 9-to-1 vote, the lone dissenter who wanted to pause and got overruled. When the consensus is unanimous for tightening and only one voice says wait, the market treats the hike as safe. That consensus was wrong by about eighteen months. Watch for the first dissent in Warsh's FOMC. That's when the clock starts.

Thursday's ISM Manufacturing PMI for September drops at 10 AM. If it slips below 54, it would start to mirror the quiet post-Katrina fade that saw the manufacturing index drift from 56 to below 50 over the following eighteen months — a slowdown that nobody took seriously until the credit market confirmed it.