The U.S. stock market fell further Tuesday following President Donald Trump’s latest escalation in his trade war, briefly pulling Wall Street 10% below its record set last month. And like it’s been for most of the past few weeks, the market’s slide on Tuesday was erratic and dizzying.

The S&P 500 fell 0.8%, but only after careening between a modest gain and a tumble of 1.5%. The main measure of Wall Street’s health finished 9.3% below its all-time high after flirting with the 10% threshold that professional investors call a “correction.”

Other indexes likewise swung sharply through the day. The Dow Jones Industrial Average lost 478 points, or 1.1%, and the Nasdaq composite ended up slipping 0.2%.

Such head-spinning moves are becoming routine in what’s been a scary ride for investors as Trump tries to remake the country and world through tariffs and other policies. Stocks have been heaving mostly lower on uncertainty about how much pain Trump is willing for the economy to endure.

Such tariffs can hurt the economy directly by raising prices for U.S. consumers and gumming up global trade. But even if they end up being milder than feared, all the whipsaw moves could create so much uncertainty that U.S. companies and consumers freeze, which would sap energy from the economy.

The S&P 500 fell 42.49 points to 5,572.07. The Dow dropped 478.23 to 41,433.48, and the Nasdaq composite slipped 32.23 to 17,436.10.