The S&P 500 has already reached the bank's year-ahead target of 7,430.

Wall Street's historic rally may be entering a more dangerous phase. Bank of America strategists are warning investors to prepare for a potential "summer correction" after U.S. stocks surged to record highs faster than expected. In a new note to clients, the strategists said the S&P 500 has already reached the bank's year-ahead target of 7,430, raising concerns that the market may be overheating after months of relentless gains fueled by enthusiasm around artificial intelligence and resilient corporate earnings. "Risk-reward is deteriorating, and multiple indicators favor a more defensive stance," the strategists wrote. "Base case: maintain trend-following longs into June, prepare for summer correction." The S&P 500 and Nasdaq have both climbed to all-time highs in recent weeks following a sharp rebound from lows reached during the war in Iran. Bank of America said that the rebound may now be losing steam. According to the firm, several technical indicators suggest the rally is becoming overextended. It pointed specifically to weakening market breadth and diverging momentum signals, signs that fewer stocks are participating in the advance even as headline indexes continue climbing. The bank also warned that the next leg higher for stocks could prove more difficult as investors confront a mix of economic and political uncertainties in the months ahead, including inflation pressures, interest-rate policy, and the 2026 U.S. election cycle. Rather than continuing to aggressively chase gains, Bank of America suggested investors begin focusing more on protecting profits accumulated during the rally. Still, the firm stopped short of turning outright bearish on the market. Its base-case scenario calls for investors to maintain long positions through June before bracing for increased volatility and a possible correction between June and September. The strategists expect stocks to stabilize later in the year, forecasting a fourth-quarter rebound that would align with historical trends seen during the second year of a U.S. presidential cycle. Historically, markets often experience heightened volatility during summer months, especially during election years and periods of geopolitical uncertainty. Despite its near-term caution, Bank of America remains optimistic about the broader outlook for equities over the longer term. The bank said it ultimately expects the S&P 500 to climb to 8,000 by the end of 2026, matching a forecast issued Wednesday by Goldman Sachs. That target suggests the firm still believes the long-term bull market remains intact. On one hand, economic growth has remained more resilient than many analysts expected, corporate profits have largely held up, and excitement surrounding AI continues fueling massive inflows into technology stocks. On the other hand, valuations are becoming increasingly stretched, interest rates remain elevated compared with recent years, and geopolitical risks have not disappeared entirely. Some analysts have also warned that the market's gains are becoming concentrated among a relatively small number of companies.

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