U.S. stocks hit a record high: the fastest reversal in history driven by dual engines

In mid-April 2026, the U.S. stock market staged a highly dramatic V-shaped reversal. On April 15, the S&P 500 index closed above the 7,000-point integer threshold for the first time in history, at 7,022.95 points; the Nasdaq Composite also closed above 24,000 points for the first time in history, at 24,016.02 points. The latter recorded gains for 11 consecutive trading days. As of April 17, the S&P 500 continued to set new intraday highs at 7,048.79 points, and the Nasdaq achieved a 12-day winning streak. During this rally, the Nasdaq took only 11 trading days to jump from the "oversold" zone into the "overbought" zone, setting the fastest reversal record since the 1980s.

This round of market gains was driven by dual engines: a easing of geopolitical tensions and the resilience of corporate earnings. At the end of March, the U.S.-Iran conflict had pushed oil prices sharply higher, raising concerns similar to 1970s-style stagflation, with the S&P 500 once plunging more than 9% from its peak. But as the U.S. and Iran moved closer to reaching a ceasefire framework agreement, the chief strategist at Interactive Brokers said bluntly, "The market is basically expressing a point through prices — the Persian Gulf War is almost over." Meanwhile, a strong earnings season kicked in at the same time: the technology sector is expected to deliver about 24.8% profit growth in the first quarter of 2026, and U.S. bank stocks’ trading businesses also logged the highest quarterly profits in nearly two decades. Tech giants turned in standout performances, with Tesla rising more than 7%, Microsoft up more than 4%, and Apple up nearly 3%.

However, the market’s rapid run also comes with risk signals that cannot be ignored. The S&P 500 forward price-earnings ratio has reached 22 times, approaching the 24-times historical record from the peak of the 2000 internet bubble. The top ten stocks account for 41% of market capitalization. This combination of "high valuation + extreme concentration" is similar to the characteristics seen before past market crashes such as those in 1929 and 2000. At the same time, geopolitical talks still have uncertainties: the oil transport in the Strait of Hormuz is still effectively blocked, and U.S. inflation pressure has not truly eased. Goldman Sachs maintains an optimistic forecast of 7,600 points for the S&P by year-end, but it also makes clear that: "Against the backdrop of valuations already at historic highs, once earnings fall short of expectations, the market’s downside risk will be significantly amplified."#美股创下历史新高