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During the first 100 days of the Trump administration, shock waves from the chaotic tariff rollout continue to send tremors through the global financial system.

April 30, 2025, 11:12 a.m. ET
One hundred days of President Trump. Seventy days of whipsaw trading in financial markets. Thirty three days of losses. More than $6.5 trillion wiped from the value of public companies.
For financial markets, the 9 percent drop in the S&P 500 is on track for the worst start to a presidential term since Gerald R. Ford took over from Richard M. Nixon in August 1974 after the Watergate scandal. The slump is worse even than when the tech bubble burst at the turn of the century, and George W. Bush inherited a market already in free fall.
In contrast, Mr. Trump inherited an economy on solid footing and a stock market rising from one record high to another.
That swiftly changed when Mr. Trump unveiled his marquee suite of tariffs on April 2 — not the first new import taxes announced by his administration, but by far the most sweeping. Volatility erupted. Wall Street frantically began to grapple with the economic consequences of the new government’s policies.
The S&P 500 tumbled more than 10 percent in two days, a drop comparable to some of the worst days of the pandemic-induced sell-off in March 2020 and, before that, the financial crisis in 2008.
Stocks have since stabilized, but the shock waves from the chaotic tariff rollout continue to send tremors through the global financial system.