Q3-2026 Quarterly Economic Update

The U.S. economy grew at a 3.4% annualized pace in the third quarter of 2026, up from 2.2% in the second quarter. But inflation picked up too, and in September the Federal Reserve did something it hadn't done since 2023: it raised rates.

That combination set the tone for the quarter. Oil jumped 37.7% to $97.18 a barrel amid Middle East tensions, the 10-year Treasury climbed to 5.29%, and stocks split sharply. Tech-heavy indexes gained, while utilities and transports fell by double digits.

For valuation professionals, the quarter changes the inputs that matter most. Discount rates moved higher, energy-sensitive costs rose, and consumer sentiment stayed near record lows. Here's what happened and what it means heading into year-end.

Q3 2026 at a glance

Growth: investment and government did the heavy lifting

Real GDP beat expectations at 3.4%, well above the 2.0% pace economists in the June Livingston Survey had projected for 2026. The acceleration came from businesses and government more than households.

• ·Consumer spending added 2.5 points, about the same as in Q2. Services led, especially health care, restaurants and accommodations.
• ·Private investment added 3.3 points. Inventory building in wholesale trade and manufacturing drove most of it, along with strong spending on computers and peripheral equipment.
• ·Government spending added 0.9 points, led by federal nondefense spending as Strategic Petroleum Reserve sales slowed.
• ·Net exports subtracted 3.3 points. Petroleum exports fell while imports of capital goods rose.

Other gauges of activity were steady rather than spectacular. Industrial production rose 1.0% in the quarter to 104.0. Capacity utilization slipped to 75.9%, just under its 30-year average of 76.3%. The Philadelphia Fed's coincident index rose 0.4% over the three months, with gains in 47 of 50 states.

The dollar was essentially flat for the quarter and up 0.7% year over year, supported by rising rates and solid growth.

Jobs held steady while inflation heated up

The labor market barely moved. Unemployment ended September at 4.2%, unchanged from June and well below its 30-year average of 5.5%. Payrolls added about 200,000 jobs over the quarter but were flat in September, a sign hiring is slowing.

Gains came in health care, construction and manufacturing, while financial activities shed jobs. The labor force grew by 900,000 and participation edged up to 61.8%. Job openings rose to 7.5 million, and quits climbed 12.4% from a year earlier, suggesting workers still feel confident enough to move.

Inflation is the bigger story. Headline CPI rose 3.7% over the year to September, but just 2.6% excluding energy. Energy did most of the damage:

• ·Crude oil hit $97.18 a barrel, up 53.8% from a year ago.
• ·Gasoline averaged $4.48 a gallon, up 34.2% year over year.
• ·Producer prices jumped 3.4% in the quarter and 12.8% over 12 months, versus a 30-year average of 2.8% a year.

Markets expect some of this to persist. The 5-year breakeven inflation rate rose to 2.4% from 2.3%.

Households feel the squeeze

Consumers kept spending, but they aren't happy about it. Personal consumption expenditures rose 1.6% in the quarter to $22.4 trillion, with a good share going to gasoline and energy. The University of Michigan sentiment index stood at 48.1 in September, barely above May's record low of 44.8 and far below its 30-year average of 83.5.

Housing is cooling. Housing starts fell 15.2% from June to 1.2 million, and the 30-year mortgage rate rose 0.54 points to 7.03%. Home prices are still edging up, with the Case-Shiller 20-City index 2.7% higher than a year earlier. Results vary widely, though: Chicago and New York gained more than 6%, while Seattle, Las Vegas, Dallas and Denver declined.

Auto sales slowed to a 16.0 million annual rate in September, down 4.7% from June, while new-vehicle prices stayed near record highs.

Rates rose, and markets split

The Fed held rates at 3.50%–3.75% in July, then raised them 25 basis points in September to 3.75%–4.00%. It cited persistently elevated inflation and said future moves will depend on incoming data. The effective fed funds rate ended the quarter at 3.88%.

Longer-term rates rose faster. The 2-year Treasury ended at 4.88%, the 10-year at 5.29% and the 30-year at 5.64%. The 10-year now sits well above its 30-year average of 3.63%. Corporate borrowing costs followed: Moody's Baa yield rose to 6.76% and Aaa to 6.29%.

Those higher yields hit rate-sensitive assets hardest:

The VIX ended the quarter calm at 16.3, but spiked in July on Middle East conflict, doubts about AI capital spending and Fed uncertainty.

What to watch next

The Fed's September projections point to a gradual cool-down rather than a sharp turn:

A 4.25% year-end rate implies one more increase is possible before cuts resume in 2027. The key variables are energy prices, whether hiring keeps slowing, and how long higher long-term yields hold.

For valuation work, the takeaway is clear. Risk-free rates and corporate yields rose meaningfully, energy costs climbed, and consumer confidence stayed weak even as GDP grew. Those conditions should be reflected in discount rates, growth assumptions and industry outlooks for any Q3 2026 valuation date.

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This post summarizes TagniFi's Quarterly Economic Update for the Third Quarter of 2026. The full report is built to support the economic-outlook analysis required under Revenue Ruling 56-60. It includes the complete charts, footnoted data sources and an appendix of selected interest rates. Data in this post comes from FRED, the BEA, the BLS, the Federal Reserve and other sources cited in the full report.

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