Why the stock market and economy may seem out of sync

In the first half of this year, the stock market surged impressively, with the S&P 500 rising nearly 10% and the Dow Jones Industrial Average climbing almost 9%. This remarkable performance, the best for the first half since 2021, contrasts starkly with the more subdued trajectory of the U.S. economy. Economists highlight this disconnect as a source of confusion for consumers and investors alike, who often expect the stock market and the economy to move in sync. Joe Seydl, a senior markets economist at J.P. Morgan Private Bank, noted that although many perceive a natural alignment between the two, they represent fundamentally different phenomena. "We're talking about apples and oranges in many ways," he stated. While the stock market enjoyed a monumental rise in recent years—gaining 24% in 2023, 23% in 2024, and 16% in 2025—real GDP growth has slowed significantly, dropping from approximately 3.3% in 2023 to around 1.9% this year. Despite the economic slowdown, Seydl emphasized that the state of the U.S. economy is not dire. The growth, while steady, has been characterized as "soft" by Mark Zandi, chief economist at Moody's. With forecasts suggesting a 2% growth rate for the year, the labor market shows signs of weakness, including the lowest labor force participation rate in nearly 50 years and the slowest hiring pace in over a decade. Consumer sentiment also reflects this caution, having plummeted to record lows amid inflation fears, although it did show some recovery in June. Zandi pointed out that while the stock market and the economy usually trend together, significant deviations can occur, and we are currently witnessing one of those instances. The significant role of artificial intelligence in the stock market's performance has drawn attention from economists, with stocks of AI companies soaring and driving broader market gains. Technology firms contribute about 35% of the stock market, and even more when considering related industries. Investors are particularly optimistic about the earnings potential of these companies, especially those involved in AI infrastructure. However, Seydl noted that technology only constitutes about 10% to 15% of the overall U.S. economy, which remains largely driven by consumer spending—accounting for roughly 70% of GDP. This spending is increasingly reliant on high-income households, with the wealthiest 20% contributing nearly 60% of personal expenditures. This K-shaped recovery, where the affluent have thrived while lower-income households have struggled, poses risks for the economy. If investor confidence in AI stocks falters, a market downturn could lead to reduced spending by wealthy households, threatening economic stability. Additionally, external pressures such as geopolitical tensions and persistent inflation continue to challenge household budgets. "If AI stocks hit a skid, the economy would be in big trouble because of how soft it is," Zandi concluded, underlining the fragile state of the current economic landscape.