**Summary:**
U.S. stocks opened significantly lower following a previous surge, where the Dow Jones Industrial Average increased by 3,000 points and the S&P 500 rose by 12% due to a 90-day pause in tariffs. The S&P 500 began trading 2% lower.

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**Article:**

U.S. stock markets experienced a sharp decline in opening trading after a remarkable rally driven by optimistic news regarding tariffs. Just days before, investors had seen a significant boost in the markets, with the Dow Jones Industrial Average climbing an impressive 3,000 points. At the same time, the S&P 500 surged by 12%, exhilarated by reports of a potential 90-day pause in the imposition of tariffs. This temporary relief sparked a wave of buying, as traders were hopeful for a respite in trade tensions that have been weighing on the economy for an extended period.

However, as the markets opened today, those gains were quickly erased. The S&P 500 fell by 2% in early trading, signaling a shift in investor sentiment. Analysts suggest that the initial enthusiasm surrounding the tariff pause may have been overblown, leading to profit-taking and a reassessment of the overall market conditions. Furthermore, concerns remain regarding the ongoing trade negotiations, which continue to create uncertainty in financial markets.

Market experts point out that volatility is expected as traders closely monitor developments in trade policies and economic indicators. The recent fluctuations underline the interconnectedness of global markets and the rapid shifts in investor sentiment influenced by macroeconomic news. While the 90-day tariff pause offers some relief, the long-term implications of trade relations between major economies remain to be seen.

In conclusion, while the U.S. stock markets experienced an exhilarating rise due to positive tariff news, the subsequent opening drop illustrates the inherent volatility in trading. Investors will continue to watch closely for any new developments that could impact market direction.