Detailed exit polling will eventually show why Republicans with Donald Trump on the top of the ballot were triumphant in the US election.

The issue which played most strongly for many Americans was inflation.

The supply-side price shocks of Covid-19, Russia’s war on Ukraine and the misleadingly titled, green-tinged Inflation Reduction Act played big with the electorate.

Aarin Chiekrie, equity analyst, Hargreaves Lansdown:

'Rolls-Royce investors would be forgiven for having their heads in the cloud of late, with Roll-Royce continuing to be the FTSE 100’s best performer so far in 2024. In a short trading update this morning, it was pleasing to see Large Engine Flying hours, the driving force behind a large chunk of its revenue, sitting above pre-pandemic levels.

'The only slight downside is that strikes at Boeing have caused a slight delay in getting upgrades to one of its engines signed off. But with this approval still expected in the coming months, investors won’t be too worried. All full-year guidance remains on track, with underlying operating profits between £2.1-£2.3bn expected, helping to fund the return of dividends at the end of its financial year.'

Ukraine-based iron ore miner Ferrexpo saw its shares hit a nine-month high with the election of Donald Trump.

The world’s third-largest exporter of iron ore pellets rocketed 27.3 per cent, or 17p, to 79.2p as traders placed bets on Trump bringing a swift end to the war with Russia, which Trump said he would do in ‘one day’ after taking power.

Ferrexpo has continued to operate its iron ore mines in Ukraine, despite the invasion in early 2022. But it has had to continually deal with disruptions to its supply lines, which have weighed on the performance of the business.

Sir Martin Sorrell's ad group S4 Capital has issued a profit warning and forecast a low double-digit decline in its annual like-for-like net revenue after a tough third quarter due to underperformance from content and tech clients.

Shares of S4 Capital have slumped as much as 17 per cent to a record low in early trade.

This is the second revenue warning in less than two months from S4, which derives almost half of its business from the technology sector.

'In light of the continued net revenue softness, we have maintained the heightened focus on cost reduction,' said Chairman Sorrell, who founded S4 after leaving rival WPP in 2018.

Some technology clients have continued to tighten their marketing spend due to a challenging broader economic environment and elevated interested rates, Sorrell said.

S4, however, said that new business activity continued at significant levels and there was a particular focus on AI-driven hyper-personalisation at scale.

Sainsbury's has maintained forecasts for full-year profit growth of up to 10 per cent as the supermarket reported a 3.7 per cnet rise for the first half, with robust grocery sales offset by a weaker performance in general merchandise.

Under CEO Simon Roberts, Sainsbury's strategy to match discounter Aldi's prices on hundreds of essential items and provide better offers for members of its Nectar loyalty scheme, financed by cutting costs, is paying off.

Britain's No. 2 grocer after Tesco said it still expected 2024/25 retail underlying operating profit, its preferred profit measure, of £1.01billion to £1.06billion, reflecting growth of 5 to 10 per cent versus 2023/24.

The group said it also still expected to generate retail free cash flow of at least £500million.

ITV revenues slipped 8 per cent in the first nine months of the year, dragged down by lower revenue in its studios business that continues to face the impact of phased deliveries from the US writers' and actors' strike last year.

Revenue decreased to £2.74billion pounds in the nine months to 30 September, from £2.98billion a year earlier.

Boss Carolyn McCall said: 'ITV Studios is performing well despite the expected impact of both the writer's strike and a softer market from free-to-air broadcasters. 

'ITV Studios has had an excellent start to Q4, in line with expectations, which will ensure it achieves record profits in 2024. 

'Studios has great creative and commercial momentum as demonstrated in the last few weeks with shows including Rivals for Disney+ and Ludwig for the BBC and is on track to deliver good revenue growth in 2025 and 2026.'

Rolls-Royce has stuck to annual proft guidance despite warning it could face a hit from supply chain issues costing as much as £200million.

The group expects to post annual profit growth of at least 30 per cent this year as its airline customers flew more and demand for power for data systems and defence equipment continued to grow.

That strength offset problems in the aerospace supply chain which has caused delays for parts, and which the company warned in August would cost £150million to £200million this year.

'Continued good performance year to date gives us further confidence in the delivery of our 2024 guidance despite a supply chain environment which remains challenging,' chief executive Tufan Erginbilgic said.

Michiel Tukker, senior european rates strategist at ING:

'The main focus in the wake of the elections is the policy-setting meetings of the Fed and the BoE.

'The Fed is firmly expected to cut by another 25bp, but the elections have important implications for the longer-run outlook of the Fed.

'Chair Powell’s commentary on the current economic environment and how the next US president could likely influence the outlook will be of huge significance.

'The BoE is also very likely to cut rates by 25bp again, but the combination of extra fiscal stimulus and the US election aftermath means officials won’t want to comment on its next steps.'

The Bank of England is expected to cut interest rates again later today, despite the reemergence of concerns about a looming revival in inflationary pressures.

Markets expect the bank's Monetary Policy Committee to vote for another 25 basis points cut to 4.75 per cent at midday.