Washington — The U.S. Bureau of Economic Analysis delivered a double shock to financial markets Friday morning, releasing the long-delayed advance estimate for fourth-quarter 2025 gross domestic product alongside December personal consumption expenditures inflation data — and neither reading pleased investors already navigating a turbulent start to 2026.

Real GDP grew at an annualized rate of just 1.4% in the final three months of last year, a dramatic deceleration from the blistering 4.4% pace recorded in the third quarter and well below the Wall Street consensus forecast of approximately 2.8% to 3.0%. The Commerce Department attributed the slowdown primarily to a sharp contraction in government spending — the result of the six-week federal government shutdown that shuttered agencies from October through mid-November — which subtracted an estimated 1.0 percentage point from headline growth. Exports also declined materially after surging 9.6% in Q3. For full-year 2025, the U.S. economy grew 2.2%, down from 2.8% in 2024.

Compounding investor anxiety, the simultaneously released PCE price index for December came in hotter than anticipated. Headline PCE rose 2.9% year-over-year, topping forecasts by 0.1 percentage point, while core PCE — stripping out volatile food and energy — accelerated to 3.0% from 2.8% in November, exceeding expectations of a 2.9% reading. Both monthly measures rose 0.4%, above the 0.3% consensus, with broad-based price pressures evident across both goods and services categories.

The pairing of sluggish growth and rising inflation creates what analysts are describing as a "stagflation-lite" scenario — one that significantly complicates the Federal Reserve's policy calculus. The Fed, which cut its benchmark rate three times in late 2025 before pausing in January, currently holds the federal funds rate at 3.50%–3.75%. Markets had been pricing in two 25-basis-point cuts for 2026, with the first expected in July, but Friday's data reinforced expectations that any easing will require a sustained decline in inflation before officials act.

"The government shutdown clearly sent the economy careening off its strong growth path in the fourth quarter," said Chris Rupkey, chief economist at Fwdbonds. "But the inflation story is harder to explain away. A core PCE at 3% is not the kind of reading that gives the Fed the confidence to ease." President Donald Trump, who previewed the soft GDP number on social media Friday morning, blamed the miss entirely on Democratic opposition and called on the Fed to lower rates immediately.

Underlying demand metrics offered some reassurance. Final sales to private domestic purchasers — a closely watched proxy for organic economic momentum — rose 2.4% in the quarter, suggesting that consumers and businesses remain in reasonably good shape despite the headline weakness. Business investment in artificial intelligence infrastructure continued to act as a bright spot, with data-center construction and software investment sustaining double-digit growth trajectories through Q4. Consumer spending rose 2.4%, though that was down notably from the prior quarter's 3.5% gain.

The S&P 500 fell approximately 0.27% in midday trading, with rate-sensitive sectors including financials, real estate, and consumer discretionary leading declines. Treasury yields were modestly lower, with the 10-year note hovering near 4.08%, as traders balanced the stagflationary inflation signal against the growth shortfall. Strategists broadly advised caution, with defensive positioning in gold, energy, and dividend-paying equities gaining favor heading into next week's data-heavy calendar.