Northwestern Mutual Wealth Management
Strong U.S. Growth Meets Rising Rate Risks
Economic data from last week continued to paint a picture of a robust U.S. economy with an accelerating pace of growth. After a strong durable goods report showed business fixed investment continuing to rise on the back of ongoing AI data center buildouts, the Atlanta Fed’s GDP Now estimate for third-quarter real economic growth remained at an elevated 5 percent.
The Fed Hikes Rates Amid Sticky Inflation and Strong Economic Data
The week began with calls for a potential slowdown in AI spending amid growing safety concerns and included a midweek Fed rate hike for the first time since 2023. The S&P 500 finished slightly lower for the second week in a row despite continuing signs that economic growth is strong. Shorter-term bond yields pushed higher as investors priced in the potential for additional rate hikes, both in the U.S. and abroad.
Markets Tested by Higher Rates and Sticky Inflation
A week of rising oil prices and higher interest rates sent stocks lower across the board as investors increasingly priced in the likelihood that the Federal Reserve (Fed) will begin a rate-hiking cycle at its September 16 meeting. Following the August Consumer Price Index (CPI) report, futures markets implied an 88 percent probability that the Fed will, or at least should, raise rates at next week's meeting.
A Changing Policy Backdrop Could Test Market Optimism
In a week that saw NVIDIA, the largest company in the world, report strong earnings that sent its stock sharply higher and reinvigorated optimism in the artificial intelligence (AI) trade, fiscal and monetary policymakers continued to provide the biggest headlines.
Markets Weigh Business Strength Against Consumer Weakness
Equity markets stumbled this week despite an economic backdrop that continues to show signs of broadening. While concerns about consumer strain are mounting, those worries have so far been offset by ongoing strength in business investment, particularly spending tied to artificial intelligence (AI).
Markets Broaden as the Economy Remains Delicately Balanced
Equity markets continued to push higher this week, with nearly all major indices in the U.S. and abroad closing near or at record highs. While longer-term interest rates continued to drift higher, shorter-term interest rates moved lower as investors pushed out both the timing and magnitude of potential Federal Reserve rate hikes.
Strong Economic Data and Earnings Push Stocks Higher
Stocks moved higher as stronger economic data, solid corporate earnings and easing geopolitical concerns helped support investor optimism.
Fed Rate Decision: What Tighter Financial Conditions Mean for Markets
While the Fed left interest rates unchanged, Treasury yields moved notably higher throughout the week, with 30-year yields eclipsing their highest levels in nearly two decades as investors reassessed the outlook for inflation and monetary policy. The S&P 500 ended 1.06 percent higher to close a volatile week of trading, recovering from a mid-week sell-off.
Tariffs Complicate the Fed’s Inflation Fight
A continued escalation in the Middle East, where the Iranian-backed Houthis joined the conflict in an attempt to disrupt Saudi Arabian crude shipments that pass through the Red Sea via the Bab-el-Mandeb Strait, drove oil prices higher, while new tariff announcements and Alphabet's earnings release created headwinds for equities.
Market Broadening Gains Momentum as AI Uncertainty Grows
The prime culprit was renewed questioning of the artificial intelligence (AI) buildout given the increasing amount of capital investment needed to bring it to life and the corresponding costs for those who use the technology weighed against its potential productivity benefits.
From First-Quarter Fear to Renewed Optimism
After a difficult start to the year, investor sentiment reached a low point near the end of March as concerns around inflation, geopolitics, and rising interest rates weighed on risk assets.
Labor Market Strength Shifts Focus Back to Inflation
Over the past few weeks, data has continued to point to a U.S. labor market that is healing after showing signs of weakness starting in late 2024 and persisting for nearly the entirety of 2025—a condition that spurred the Fed to cut rates even as inflation remained stuck above its 2 percent target.
Markets Broaden as AI Costs Rise and Inflation Pressures Linger
In our view, this divergence continues to reflect how the buildout of artificial intelligence (AI) is influencing both the economy and markets as it progresses across the value chain, even as the associated costs continue to climb.
Market Broadening, AI, and the Case for Diversification
As the market continues to broaden in 2026, a balanced approach matters more than ever.