Possibly affected by Trump's tariff war with Europe, U.S. stocks declined across the board in the pre-market trading on the first trading day after the market closed.

January 19, 2026, marks Martin Luther King Jr. Memorial Day, a day when the U.S. stock market is closed. However, on the 20th, before the market opens, market sentiment clearly weakens, mainly due to U.S. President Donald Trump once again threatening tariffs on European allies, triggering a new round of trade tensions, with technology stocks broadly declining.

Trump has announced that if Denmark does not reach an agreement with the U.S. regarding the “sale of Greenland,” starting from February 1, tariffs of 10% will be imposed on goods imported from Denmark, Norway, Sweden, France, Germany, the UK, the Netherlands, and Finland, all NATO members, and further increased to 25% on June 1. These measures will be added on top of existing tariffs.

As of pre-market quotes, major technology and semiconductor giants all declined:

NVIDIA down 2.69%

AMD down 3.20%

Tesla down 2.72%

Google down 3.28%

Microsoft down 1.60%

Oracle down 3.24%

Broadcom down 2.89%

Meta down 2.63%

TSMC (TSM) down 0.77%

Trump’s tariff threats against eight European countries put pressure on tech stocks before the market opens

Over the weekend, Trump posted on Truth Social that if Denmark does not reach an agreement with the U.S. regarding the “sale of Greenland,” tariffs of 10% will be imposed on goods imported from Denmark, Norway, Sweden, France, Germany, the UK, the Netherlands, and Finland, all NATO members, starting February 1, with a further increase to 25% on June 1. These measures will be added on top of existing tariffs.

(US-China trade tariffs just settled, Trump strikes again with European tariffs: if Greenland deal is not reached, 25% tariffs will be imposed)

Market interpretation suggests that this move not only impacts the trade agreement between the EU and the U.S. reached at the end of last year but also reignites transatlantic trade friction. Capital is already withdrawing from high-valuation tech stocks, as reflected in the pre-market quotes on the 20th.

Pre-market on the 20th: Major tech stocks broadly decline

As of pre-market quotes, all major technology and semiconductor giants are down:

NVIDIA (NVDA): $181.09, down $5.02 (-2.69%)

Advanced Micro Devices (AMD): $224.40, down $7.43 (-3.20%)

Tesla (TSLA): $425.61, down $11.91 (-2.72%)

Alphabet (GOOG): $319.50, down $10.84 (-3.28%)

Microsoft (MSFT): $452.50, down $7.36 (-1.60%)

Oracle (ORCL): $184.90, down $6.19 (-3.24%)

Broadcom (AVGO): $341.54, down $10.17 (-2.89%)

Meta (META): $603.92, down $16.33 (-2.63%)

TSMC (TSM): $339.76, down $2.64 (-0.77%).

EU strongly protests, trade war and geopolitical risks escalate

The EU has urgently convened an ambassadorial meeting. European Commission President Ursula von der Leyen stated that this is not just a trade dispute but a challenge to transatlantic partnership and the international order. Leaders from France, Sweden, Denmark, and others have also publicly refused to make concessions under tariff threats. Additionally, some U.S. Congress members have warned that using tariffs against NATO allies could fuel inflation domestically, weaken alliances, and strategically benefit China and Russia.

This article, or the impact of Trump’s tariff war against Europe, was first reported by Lian News ABMedia, noting that after the U.S. stock market closes, the first trading day sees a broad decline in tech stocks before the market opens.