Why did the Nikkei 225 fall today?

The Nikkei 225 dropped as an oil price surge, tied to heightened Strait of Hormuz risk and Iran tensions, stoked inflation worries and risk-off selling. South Korea’s Kospi crash amplified stress across Asia. Weak China PMIs had already cooled growth hopes, so positioning shifted toward cash and defensives. Exporters, transports, and tech led declines as investors priced higher energy costs and a slower path to rate cuts.

How could this affect Canadian markets and the TSX?

Rising crude can support TSX energy but pressure airlines, trucking, and consumer names via fuel costs. If risk aversion persists, beta and small caps may lag while gold and pipelines hold better. Higher gasoline prices can lift headline CPI and complicate Bank of Canada cuts, nudging yields up. That backdrop usually favours quality balance sheets and cash generators over high-duration growth stocks.

What should investors watch next after the Kospi crash and oil spike?

Track crude futures and shipping updates on the Strait of Hormuz, as oil direction will shape inflation and risk appetite. Watch China PMIs for demand signals, and see whether the Nikkei 225 holds near key bands and averages. In Canada, follow CPI, wage growth, and BoC commentary. Use staged orders, review hedges on foreign exposure, and prioritize liquidity while the tape digests shocks.

Global Market Insights

Nikkei 225 Today, March 4: Oil Spike, Iran Tensions Sink Stocks

ByDanny Kontos March 4, 2026March 4, 2026

The Nikkei 225 fell sharply today as an oil price surge tied to Strait of Hormuz risk and Iran tensions drove a broad Asia selloff. South Korea’s Kospi crash, down about 12% at one point, added to stress. For Canadian investors, this matters. Energy-led inflation can pressure the Bank of Canada, move the loonie, and sway TSX sector leadership. We explain what today’s Nikkei 225 move signals, how oil and geopolitics feed through to Canada, and where risks and opportunities may appear.