Morgan Stanley Highlights Three Key Risks Threatening Wall Street Rally This Summer
July has historically been one of the strongest months for the stock market, with the S&P 500 rising every July since 2014. However, Morgan Stanley warns that several factors could disrupt the ongoing summer rally. Andrew Sheets, head of global fixed income research at Morgan Stanley, notes increased market volatility recently, especially in the Nasdaq 100, which has traded sideways amid a rotation from high-flying tech and chip stocks to other sectors.
Morgan Stanley identifies three main risks that could cool the market this summer. First, renewed tensions between the US and Iran have raised concerns about oil prices. After President Donald Trump declared the ceasefire with Iran over and the US launched new attacks following Iranian strikes on commercial ships in the Strait of Hormuz, investors fear supply disruptions. Morgan Stanley’s optimistic scenario depends on maritime traffic normalizing and Brent crude oil prices falling back to around $75 per barrel within a year. Yet, the US’s limited strategic oil reserves heighten vulnerability to price shocks, which could increase inflationary pressures and complicate central banks’ efforts to cut interest rates, potentially weighing on stocks.
Second, the possibility of further Federal Reserve interest rate hikes threatens the rally’s foundation. While markets largely assume no rate changes through year-end, Morgan Stanley warns this may be mistaken. Current futures imply an 82% chance of at least one hike this year. Other major banks, including Bank of America and Deutsche Bank, have adopted more hawkish views, predicting multiple rate increases to combat persistent inflation and a resilient labor market. The Fed’s recent meeting minutes also signal growing inflation concerns among policymakers.
Third, a slowdown in artificial intelligence (AI) investment by major tech companies could undermine a key growth driver for equities. Morgan Stanley projects AI capital expenditures to rise from about $800 billion in 2026 to $1.2 trillion in 2027, but cautions that any signs of spending restraint, possibly triggered by weak stock performance, could shake investor confidence. This risk is already emerging, as the "Magnificent Seven" tech giants heavily invested in AI have lost roughly 13% from their May peak to June lows amid profit-taking and doubts about future returns.
These three risks, Middle East tensions affecting oil, potential Fed rate hikes, and AI investment uncertainties, pose significant challenges to sustaining the summer rally on Wall Street.
Summary: Morgan Stanley warns that renewed US-Iran tensions, possible Federal Reserve rate hikes, and a slowdown in AI investments could disrupt the historically strong July stock market rally, increasing volatility and risks for Wall Street this summer.
