Why did the Nasdaq today rebound?

The rebound followed Trump’s Greenland tariff backflip, which eased immediate trade and input-cost fears for large tech firms. With that risk removed for now, investors rotated back into growth and cash-rich platforms. The focus now shifts to the Supreme Court’s decision on tariff authority, which could influence margins, confidence, and valuations.

How does this affect the S&P 500 and Dow Jones?

Nasdaq today led gains, but easing tariff risk also helps the S&P 500 and Dow Jones. The S&P 500 benefits from broader participation if volatility falls. The Dow Jones may catch up through industrials and consumer names tied to trade flows. Policy clarity is key for sustaining cross-index strength.

What should Australian investors watch next?

Keep an eye on the Supreme Court ruling on tariff authority, index breadth, and USD moves. These will guide risk appetite and earnings visibility. If policy risk stays contained, adding to quality tech on pullbacks can work. If risk rises, reduce sizing, hold more defensives, and reassess currency hedges.

Is this a durable trend for tech or a short-term bounce?

It depends on policy and earnings. Nasdaq today reflects lower tariff anxiety, but durability rests on the Court’s decision and upcoming corporate results. Strong cash flow and balance sheets support tech on dips. If policy risk returns, expect higher dispersion and a shift toward quality defensives.

Global Market Insights

^NDX Today January 22: Nasdaq Jumps on Trump Greenland Tariff Backflip

ByHuzaifa Zahoor January 22, 2026January 22, 2026

Nasdaq today is in focus after a sharp rebound in the tech-heavy Nasdaq 100, as tariff fears cooled following President Trump’s Greenland backflip. With trade risk dialled down, attention shifts to a looming Supreme Court decision on tariff authority that could sway mega-cap tech and overall risk appetite. For Australian investors, this move matters for global growth exposure, currency sensitivity, and the ASX open. We break down what changed, why it matters, and how to position around the next policy headline.