London Markets: FTSE 100 Stumbles On Trump Tariff Fears, With Mays Brexit Speech To Come

U.K. stocks fell Friday, on course to finish lower for the week and tracking a slump for Wall Street equities. The losses were stoked by fears that a global trade war might break out, after U.S. President Donald Trump said he will slap tariffs on steel and aluminum imports.

Later Friday, British Prime Minister Theresa May will reveal her much-anticipated vision for the U.K.’s post-Brexit relationship with the European Union.

How markets are moving

The FTSE 100 index UKX, -0.99% was off 0.5% at 7,141.16, led by losses in the basic materials and tech sectors. But the consumer goods and utility groups were modestly higher. On Thursday, the index lost 0.8%.

For this week, the London benchmark is facing a 1.2% loss, which would be a second straight weekly decline.

The pound GBPUSD, +0.1379% traded at $1.3766, down from $1.3777 late Thursday in New York. Sterling was on course to fall roughly 1.5% for the week.

The euro EURGBP, +0.2246%  was little changed against the pound, buying 0.8909 pence compared with 0.8904 in the prior session.

What’s driving markets

U.K. stocks stepped back, echoing large losses on equity markets in Wall Street, Asia NIK, -2.50% HSI, -1.48% and Europe SXXP, -1.59%  . The declines came after Trump late Thursday said next week he will sign an order to impose tariffs of 25% on steel imports and of 10% on aluminum imports into the U.S.

Trump said the move will provide “protection for a long time” for U.S. steel makers, whose shares rallied Thursday. But the broader U.S. equity market slid, leaving the Dow Jones Industrial Average DJIA, -1.68% down more than 400 points, or 1.7%, while a key gauge of volatility VIX, +7.08%  rose about 13%.

Read: Why the stock market took Trump’s tariff announcement so hard

Meanwhile, U.K. Prime Minister Theresa May in a much anticipated speech Friday afternoon will outline her vision for what the U.K.’s relationship will be with the European Union after Britain exits as a member of bloc. May on Wednesday rejected the EU’s draft version of its Brexit treaty.

Read: How May’s speech today could wallop the pound

What strategists are saying

“Trump’s decision ... spooked the markets overnight, successfully bringing Treasury yields, the dollar and U.S. indices tumbling lower and boosting the yen as risk-off dominates,” said Jasper Lawler, London Capital Group’s head of research.

“Whilst market eyes have been firmly on interest-rate expectations and recent volatility, no one was preparing for a potential trade war,” he said in a note.

Stock movers

Rolls-Royce Holdings PLC RR., -1.55%  fell 1%, on worries the engine maker may be affected by the U.S. tariff shift.

London Stock Exchange Group PLC LSE, -0.99%  shares dropped 3%, even as the exchange operator said its 2017 profit rose on the back of strong revenue growth.

Economic data

IHS Markit’s purchasing managers’ index for U.K. construction in February is due for release at 9:30 a.m. London time, or 4:30 a.m. Eastern Time.

Bank of England Governor Mark Carney was scheduled to deliver a speech to the Inaugural Scottish Economics Conference in Edinburgh on Friday morning, but this has been changed due to adverse weather conditions. The speech instead will be broadcast live from a London studio at 10 a.m. London time, or 5 a.m. Eastern.

RECENT NEWS

Gyrostat Capital Management: The Hidden Architecture Of Consequences

When Structures Themselves Become A Risk In portfolio construction, risk is rarely where we look for it.... Read more

Gyrostat November Outlook: The Rising Cost Of Doing Nothing

Through the second half of 2025, markets have delivered a curious mix of surface tranquillity and instabi... Read more

Gyrostat Capital Management: Blending Managers - From Style Diversification To Scenario Diversification

The Limits of Traditional Diversification For decades, portfolio construction has ... Read more

Gyrostat October Outlook: Beneath The Calm, The Cost Of Protection Rises

 Even as global equity indices remain near record highs, the pricing of risk is shifting quietly ben... Read more

Gyrostat Capital Management: Solving The Nastiest Problem In Finance

Retirement Income and Sequencing Risk Executive Summary ... Read more