Donald Trump’s trade war escalation has sparked a global sell-off, with US stock markets seeing the biggest declines in a hit to values estimated above $2trn.

Tech and retail shares were among those worst hit when Wall Street opened for business, following on from a flight from risk across both Asia and Europe earlier in the day.

Analysis by the investment platform AJ Bell put the value of the peak losses among major indices at $2.2trn (£1.7trn).

The tech-focused Nasdaq Composite was down 5.8%, the S&P 500 by 4.3% and the Dow Jones Industrial Average by just under 4% at the height of the declines. It left all three on course for their worst one-day losses since at least September 2022 though the sell-off later eased back slightly.

Trump latest: UK considers tariff retaliation

Analysts said the focus in the US was largely on the impact that the expanded tariff regime will have on the domestic economy but also effects on global sales given widespread anger abroad among the more than 180 nations and territories hit by reciprocal tariffs on Mr Trump‘s self-styled “liberation day”.

They are set to take effect next week, with tariffs on all car, steel and aluminium imports already in effect.

Price rises are a certainty in the world’s largest economy as the president’s additional tariffs kick in, with those charges expected to be passed on down supply chains to the end user.

The White House believes its tariffs regime will force employers to build factories and hire workers in the US to escape the charges.

Economists warn the additional costs will add upward pressure to US inflation and potentially choke demand and hiring, ricking a slide towards recession.

Apple was among the biggest losers in cash terms in Thursday’s trading as its shares fell by almost 9%, leaving it on track for its worst daily performance since the start of the COVID pandemic.

Concerns among shareholders were said to include the prospects for US price hikes when its products are shipped to the US from Asia.

Other losers included Tesla, down by almost 6% and Nvidia down by more than 6%.

Many retail stocks including those for Target and Footlocker lost more than 10% of their respective market values.

The European Union is expected to retaliate in a bid to put pressure on the US to back down.

The prospect of a tit-for-tat trade war saw the CAC 40 in France and German DAX fall by more than 3.4% and 3% respectively.

The FTSE 100, which is internationally focused, was 1.6% lower by the close – a three-month low.

Financial stocks were worst hit with Asia-focused Standard Chartered bank enduring the worst fall in percentage terms of 13%, followed closely by its larger rival HSBC.

Among the stocks seeing big declines were those for big energy as oil Brent crude costs fell back by 6% to $70 due to expectations a trade war will hurt demand.

The more domestically relevant FTSE 250 was 2.2% lower.

A weakening dollar saw the pound briefly hit a six-month high against the US currency at $1.32.

There was a rush for safe haven gold earlier in the day as a new record high was struck though it was later trading down.

Sean Sun, portfolio manager at Thornburg Investment Management, said of the state of play: “Markets may actually be underreacting, especially if these rates turn out to be final, given the potential knock-on effects to global consumption and trade.”

He warned there was a big risk of escalation ahead through countermeasures against the US.

Read more:
Trump tariff saga far from over
‘Liberation Day’ explained
What Sky correspondents make of Trump’s tariffs

Sandra Ebner, senior economist at Union Investment, said: “We assume that the tariffs will not remain in place in the
announced range, but will instead be a starting point for further negotiations.

“Trump has set a maximum demand from which the level of tariffs should decrease”.

She added: “Since the measures would not affect all regions and sectors equally, there will be winners and losers as in 2018 – although the losers are more likely to be in the EU than in North America.

“To protect companies in Europe from the effects of tariffs, the EU should not respond with high counter-tariffs. In any case, their impact in the US is not likely to be significant. It would be more efficient to provide targeted support to EU companies in the form of investment and stimulus.”

British companies and business groups have expressed alarm over President Donald Trump’s 10% tariff on UK goods entering the US – but cautioned against retaliatory measures.

It comes as Business Secretary Jonathan Reynolds launched a consultation with firms on taxes the UK could implement in response to the new levies.

Money blog: Pension top-up deadline days away

A 400-page list of 8,000 US goods that could be targeted by UK tariffs has been published, including items like whiskey and jeans.

On so-called “Liberation Day”, Mr Trump announced UK goods entering the US will be subject to a 10% tax while cars will be slapped with a 25% levy.

The government’s handling of tariff negotiations with the US to date has been praised by representative and industry bodies as being “cool” and “calm” – and they urged ministers to continue that approach by not retaliating.

Business lobby group the CBI (Confederation of British Industry) said: “Retaliation will only add to supply chain disruption, slow down investment, and stoke volatility in prices”.

Industry body the British Retail Consortium (BRC) also cautioned: “Retaliatory tariffs should only be a last resort”.

‘Deeply troubling’

While a major category of exports, in the form of services – like finance and information technology (IT) – has been exempted from the tariffs, the impact on UK business is expected to be significant.

Mr Trump’s announcement was described as “deeply troubling for businesses” by the CBI’s chief executive Rain Newton-Smith.

Read more:
US tariffs spark global market sell-off
Do Trump’s numbers add up?
Island home only to penguins hit by tariffs

The Federation of Small Businesses (FSB) also said the tariffs were “a major blow” to small and medium companies (SMEs), as 59% of small UK exporters sell to the US. It called for emergency government aid to help those affected.

“Tariffs will cause untold damage to small businesses trying to trade their way into profit while the domestic economy remains flat,” the FSB’s policy chair Tina McKenzie said. “The fallout will stifle growth” and “hurt opportunities”, she added.

Companies will need to adapt and overcome, the British Export Association said, but added: “Unfortunately adaptation will come at a cost that not all businesses will be able to bear.”

Watch dealer and component seller Darren Townend told Sky News the 10% hit would be “painful” as “people will buy less”.

“I am a fan of Trump, but this is nuts,” he said. “I expect some bad months ahead.”

Industry body Make UK said the 25% tariffs on cars, steel and aluminium would in particular be devastating for UK manufacturing.

Cars hard hit

Carmakers are among the biggest losers from the world trade order reshuffle.

Auto industry body the Society of Motor Manufacturers and Traders (SMMT) said the taxes were “deeply disappointing and potentially damaging measure”.

“These tariff costs cannot be absorbed by manufacturers”, SMMT chief executive Mike Hawes said. “UK producers may have to review output in the face of constrained demand”.

The new taxes on cars took effect on Thursday morning, while the measures impacting car parts are due to come in on 3 May.

The Carphone Warehouse co-founder David Ross is ploughing millions of pounds into Jigsaw, the fashion retailer, in a deal that will result in him becoming its majority shareholder.

Sky News understands that an investment vehicle controlled by Mr Ross, who also chairs the National Portrait Gallery, is committing roughly £5m more to the chain, seven years after his initial investment.

Sources said the additional financial injection from Mr Ross would see him replacing Jigsaw founder John Robinson – who established the business in 1970 – as the controlling shareholder.

It comes weeks after it emerged that Hash Ladha, Jigsaw’s chief executive for just 15 months, would be leaving the company in the summer.

A new boss is understood to be in the process of being recruited.

Like most high street chains, the loss-making retailer was forced to seek rent reductions from landlords and close unprofitable stores during the pandemic.

A source close to Jigsaw said the new funding would establish a more resilient long-term financial foundation for the company.

It will entail what the source described as “a significant balance sheet reorganisation and debt reduction”.

Part of the capital will be used to invest in infrastructure, including a new online proposition for the brand and an improved fulfilment capability.

High street retailers which survived the COVID pandemic are now facing the severe headwinds of the government’s increases to employers’ national insurance contributions, which come into effect this month.

Jigsaw declined to comment.