Records, Then a Rate Hike: A Narrow, Tech-Led Quarter

The third quarter tested the record rally of Q2 from two directions at once: a renewed oil shock and a Federal Reserve that finally moved from hawkish words to action. Headline indexes held up. The S&P 500 rose 2.0% and the Nasdaq Composite 2.5%, both after record highs in August, with the S&P peaking at 7,798.99 on August 13. Beneath the surface, breadth deteriorated sharply. The Dow fell 2.7%, the S&P MidCap 400 6.7% and the Russell 2000 7.5%, reversing much of the small- and mid-cap leadership that defined the first half. Energy was the top sector, while utilities, industrials and real estate lagged.

Fundamentals remained the market's anchor. FactSet reported blended Q2 S&P 500 earnings growth of 52.0% year-over-year, the highest since Q2 2021, with 86% of companies beating estimates, revenue up 15.5% and a record net profit margin of 17.0%. Calendar-2026 S&P 500 earnings estimates climbed to a record $361.34 by August 31, up from $311 at the start of the year.

July: War Resumes and AI Spending Jitters

Resumed hostilities between the U.S. and Iran pushed Brent crude from $71.57 on July 1 to $100.69 on July 23, and WTI rose 21.8% for the month. Late in July, worries over record AI capital spending (an estimated $691 billion among the top five hyperscalers this fiscal year) triggered a sharp tech selloff. Strong results from Microsoft and Amazon drove a rebound in the final two sessions, but the Nasdaq Composite still lost 3.2% and the Nasdaq 100 6.6% (total return). The Fed held rates at 3.50-3.75% on July 29, with three officials dissenting in favor of a hike.

August: Record Highs on Record Profits

August brought new highs. The S&P 500 gained 2.6% to 7,686.14 and the Nasdaq Composite 3.9%, powered by the blowout Q2 earnings season, while the Dow set a record high of 54,349.12 on August 5. Gold jumped 9.7%. Bond markets told a more cautious story. The 10-year Treasury ended the month at 4.75%, Japan's 10-year yield reached 3.0% for the first time since 1996, and Treasury Secretary Bessent announced a larger debt buyback program. CPI eased to 3.4% in July from its 4.2% May peak.

September: The Fed Hikes and Yields Break Out

On September 16 the FOMC unanimously raised the federal funds target by 25 basis points to 3.75-4.00%, its first increase since 2023, citing inflation still above target and Middle East tensions. Officials' projections point to one more hike in 2026. August CPI held at 3.4% (core 2.4%, the lowest since 2021), but gasoline rose 3.9% on the month. Higher oil prices and a resilient economy, with Q2 GDP revised up to 2.2%, drove a broad bond selloff. The 10-year Treasury yield jumped 54 basis points in September to 5.29%, its highest since 2007. Rate-sensitive stocks paid the price: the Russell 2000 fell 5.4% and the Dow 4.3% for the month, while the Nasdaq still added 1.9%. Consumer confidence fell to 81.9, its lowest since 2014.

Commodities, Crypto and the Dollar

WTI crude gained 29% for the quarter to $90.55, though prices eased late in September as Gulf crude exports (excluding Iran) returned to pre-war levels and talk of a U.S.-Iran arrangement surfaced. The Strategic Petroleum Reserve fell to 298.7 million barrels in August, its lowest since 1983. Gold rose about 3% to roughly $4,170, after an August surge was largely reversed in September as real yields climbed. Bitcoin was the quarter's standout, rallying about 43% to near $84,000, its best third quarter since 2017, helped by roughly $6.5 billion of spot ETF inflows. The dollar (DXY) finished little changed at 101.5 after a 2.1% September rally.

Can Earnings Outrun 5% Yields?

Markets enter the fourth quarter balancing exceptional corporate profits against the highest long-term borrowing costs in nearly two decades. Fed policy is the central question. The first post-quarter data point leaned dovish: September payrolls, released October 2, rose just 29,000 against forecasts of 84,000, unemployment ticked up to 4.2%, and traders trimmed bets on another 2026 hike. Oil remains the swing factor for inflation. Recovering Gulf export flows and any U.S.-Iran deal could pull crude lower, while renewed attacks on shipping would push it back up.

Key Catalysts for Q4

Q3 earnings season (mid-October): FactSet consensus calls for roughly 29.5% year-over-year S&P 500 earnings growth and 12.3% revenue growth, the third straight quarter above 25%. AI capital spending guidance from the hyperscalers will be closely watched after July's volatility.

Fed policy (Oct 27-28 & Dec 8-9 FOMC): The dot plot points to one more hike this year. A softening labor market and easing core CPI argue for patience. Oil-driven headline inflation argues for action. The December meeting includes updated projections.

Inflation and yields: September CPI (October 14) and October CPI (November 10) will test whether headline inflation keeps easing. A 10-year yield holding above 5% would keep pressure on valuations, small caps and housing, with 30-year mortgage rates already above 7%.

Midterm elections (November 3): Control of Congress will shape the outlook for fiscal policy, tariffs and energy policy heading into 2027.