According to Zhitong Finance APP, the US stock market experienced a rare celebration on Wednesday, with the Nasdaq index soaring 12% in a single day, marking its largest increase since January 2001 and the second-best performance in the index's history. This strong rebound was triggered by President Trump announcing a 90-day tariff reduction measure for most trading partner countries, slightly lifting the gloom that had been hanging over the market.However, history has shown that such &#34;rescue rebounds&#34; are often not true bull market signals. Among the 25 best trading days in the history of the Nasdaq, 22 occurred during three major market upheavals: the tech bubble burst (2000), the financial crisis (2008-2009), and the early days of the COVID-19 pandemic (2020). The surge on Wednesday undoubtedly confirmed this law.Many market participants referred to it as a &#34;dead cat bounce,&#34; &#34;short covering,&#34; or &#34;relief rally&#34;—typical phenomena in a bear market, indicating that the market will continue to experience turbulence.The immediate catalyst for this rebound was Trump's statement posted on his social platform Truth Social. He announced that tariffs on most trading partners, except China, would be temporarily reduced to 10% for 90 days to buy time for negotiations. Previously, the US had just announced a package of tariff plans, which severely undermined market confidence.This policy shift immediately injected a &#34;shot of adrenaline&#34; into the US stock market, especially for tech giants. Tesla (TSLA.US) saw its stock price surge 23%, marking the second-largest single-day increase in history, partially offsetting the previous four-day decline of 22%.Despite the easing of tariffs on other countries, Trump maintained a tough stance on China. He stated that tariffs on Chinese goods would increase to 125%, higher than the rate announced last week.Trump candidly told the media, &#34;I am not intentionally depressing the market, but sometimes you have to take medicine to get better.&#34; This implies that the market will still face shocks of uncertainty in the future.This series of tariff policies has also drawn strong criticism from the American business community. Heavyweights, including hedge fund manager Bill Ackman, Home Depot (HD.US) co-founder Ken Langone, and billionaire investor Leon Cooperman, have expressed dissatisfaction with Trump's trade strategy.JP Morgan CEO Jamie Dimon stated that tariffs could lead to an economic recession. BlackRock CEO Larry Fink pointed out that most CEOs already believe the US is &#34;effectively in a recession.&#34; Tesla CEO Elon Musk even publicly criticized Trump's senior trade advisor Navarro as a &#34;moron,&#34; &#34;dumber than a bag of bricks.&#34;The US Treasury market was not spared either. Previously, the yield on the 10-year US Treasury bond soared to 4.51%, while it was around 3.9% last week. This heightened concerns that persistently high interest rates would further damage consumer confidenceTech giants are about to kick off a new earnings season. Faced with the uncertainty of tariffs, many corporate management teams are still watching and hesitant to take action, waiting for more clarity on policies before formulating long-term strategies. Analysts expect that performance forecasts and supply chain deployments in the coming quarters may be comprehensively affected.Although Wednesday's market rebound provided temporary relief for investors, including Ackman, who even praised Trump for &#34;perfectly demonstrating the art of the deal,&#34; Wedbush analyst Dan Ives referred to it as &#34;the long-awaited good news for the market,&#34; concerns about the erratic nature of Trump's policies still persist.Famous investor Ken Fisher wrote on social platform X: &#34;Trump's policies last week were both foolish and wrong, exaggerated and ignorant in trying to solve non-existent problems with the wrong tools. Nevertheless, I believe these measures will not last long, and the market's panic over them is far greater than the actual threat, which is a positive from this perspective.&#34;However, the road ahead remains bumpy. &#34;Predicting what Trump will do next is futile.&#34; Wall Street seems to have become accustomed to this uncertainty, but that does not mean it can truly accept it

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The US stock market experienced a rare celebration on Wednesday, with the Nasdaq index soaring 12% in a single day, marking its largest increase since 2001. This rebound was triggered by Trump's announcement of a 90-day tariff reduction for most trading partners, but history shows that such rebounds are often not a true signal of a bull market. Market participants refer to it as a "dead cat bounce" or "relief rally," indicating that the market will continue to be volatile. Trump's high-pressure tariffs on China remain in place, leaving the market facing uncertainty in the future

- The U.S. stock market experienced a rare surge on Wednesday, with the Nasdaq index rising 12%, its largest single-day gain since January 2001.  
- This rebound was triggered by President Trump's announcement of a 90-day tariff reduction for most trade partners, although historical patterns suggest such rebounds often do not indicate a true bull market.  
- Despite the temporary boost, concerns remain about ongoing market volatility and the potential economic impact of Trump's trade policies, with significant criticism from business leaders and analysts.

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The US stock market welcomes a rare frenzy, but this may not be a true bull market signal