TradingKey - Morgan Stanley (MS) Chief U.S. Equity Strategist Michael Wilson warned that another significant rise in oil prices could become one of the biggest risks facing the current U.S. stock market. He advised investors to allocate appropriately to energy stocks to mitigate the impact of surging oil prices on their equity portfolios.

Wilson believes that further gains in crude oil prices could transmit into inflation and the bond market, pushing up Treasury yields and market volatility, and ultimately increasing pressure on the Fed to retighten policy. Morgan Stanley also recently noted that oil prices and interest rates remain two key variables for U.S. stocks, and if energy prices continue to rise, market risk appetite could be affected.

This concern comes as Middle East tensions once again unsettle energy markets, with ongoing supply and transit risks surrounding the Strait of Hormuz pushing Brent crude back toward $90.

According to reports, as the U.S. prepares to announce new sanctions against Iran, markets remain focused on risks related to the Strait of Hormuz. Although oil prices pulled back during the day due to profit-taking, supply concerns have not subsided.

Wilson emphasized that the impact of oil prices on the stock market is not symmetrical. The negative shock of rising crude prices on corporate costs, inflation expectations, and interest rates tends to outweigh the positive effects of falling oil prices. In other words, the stock market does not necessarily need to see a sharp drop in oil prices; as long as oil stops rising rapidly, pressure on equities could ease.

From an investment strategy standpoint, this is one reason why Wilson remains bullish on the energy sector. Energy stocks show a strong correlation with oil price movements. When crude prices rise, oil companies typically generate higher profits and cash flows. Consequently, when energy prices experience an unexpected upward movement, energy stocks can offset the cost and valuation pressures faced by other sectors to some extent.

ExxonMobil (XOM) and Chevron (CVX) have gained more than 30% year-to-date, significantly outperforming the S&P 500 Index.

For the overall U.S. stock market, oil price risks need to be understood within the current interest rate environment. If crude prices continue to climb, they could not only increase corporate production and transportation costs but also re-ignite inflation expectations, thereby limiting the Fed's room to cut interest rates. Wilson believes that the Fed may eventually need to respond to this change, but the policy reaction may not be very swift, and the market may first need to go through a new wave of volatility.

Therefore, oil prices have become an important variable affecting the short-term direction of U.S. stocks. Rather than simply betting that crude oil prices will not continue to rise, enhancing portfolio defensiveness through energy stocks, high-quality stocks, and other means may be more suitable for the current market environment.

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