US stock market volatility surged as US-Canada trade tensions rattled investors. The Dow Jones dipped 0.3%, while the S&P 500 fell 0.3%, reversing earlier gains. Despite a 3.1% rise in core CPI, marking its lowest increase since April 2021,

At 6:40 a.m. ET, futures tied to the broad S&P 500 index rose 0.66%, while blue-chip Dow futures jumped 0.44%. Tech-heavy Nasdaq futures gained 0.91%.

Concerns are rife that U.S. President Donald Trump's unpredictable tariff threats could stall investment and tip the world's largest economy into a period of high inflation and slowing growth. U.S. tariffs on metal imports were met with immediate retaliation from Canada and the European Union and Trump has also hinted at reciprocal tariffs in early April.

U.S. stock index futures rose on Friday, signaling a pause from a week-long selloff triggered by fears of a growth slowdown due to the Trump administration's erratic trade policies, while gold stocks surged as the precious metal breached the $3,