London's FTSE 100 is poised for a modest recovery on Thursday, with futures pointing 0.4% higher after the index suffered its steepest one-day fall since May in the previous session. The rebound comes as oil prices climbed more than 1% following fresh US military strikes on Iran, reigniting fears of supply disruptions in the Persian Gulf.
What happened?
Wednesday's sell-off was triggered after President Donald Trump declared that an initial ceasefire agreement with Iran was effectively dead, dashing hopes for a de-escalation in the region. The FTSE 100 tumbled sharply as investors rushed to price in the renewed geopolitical risk, marking the index's worst daily performance in months.
Now, markets are attempting to stabilise. Futures contracts for the FTSE 100 are trading in positive territory, suggesting a cautious opening. Meanwhile, Brent crude oil rose over 1% in early trading, extending gains from earlier in the week as traders assessed the likelihood of further disruption to oil shipments through the Strait of Hormuz, a critical chokepoint for global energy supplies.
Why oil matters for the FTSE
The link between oil prices and the FTSE 100 is not straightforward. The index contains heavyweight energy producers such as BP and Shell, which tend to benefit from higher crude prices. However, a sustained oil rally also raises costs for airlines, transport firms and manufacturers, squeezing margins across the broader economy.
For everyday investors, the key takeaway is that geopolitical shocks can quickly overshadow corporate earnings and economic data. When tensions flare in the Middle East, oil often becomes the fastest transmission mechanism, affecting everything from petrol prices to the cost of goods.
This week's moves echo patterns seen in earlier episodes of US-Iran friction. In similar situations, equity markets have initially sold off on uncertainty, then partially recovered as investors assessed the likelihood of actual supply disruptions. The current situation remains fluid, with no clear resolution in sight.
What investors are watching next
Attention is now focused on any further statements from Washington or Tehran, as well as the response from other Gulf producers. The oil surge past $76 earlier this week highlighted how sensitive markets are to developments near the Strait of Hormuz, through which about a fifth of the world's oil passes.
European markets have also been affected. The DAX tumbled 2.35% on Wednesday as the same geopolitical fears rattled German stocks, while eurozone bond yields rose on inflation concerns linked to higher energy costs.
For UK investors, the FTSE 100's resilience will be tested in the coming days. A sustained oil rally could provide a floor for the index thanks to its energy heavyweights, but it also risks reigniting inflation fears, which would complicate the Bank of England's rate-setting decisions.
The bigger picture
Wednesday's sharp fall is a reminder that markets do not move in straight lines. The FTSE 100 had been trading relatively calmly before the geopolitical shock, and the sudden drop caught many investors off guard. While Thursday's futures suggest a partial recovery, the underlying uncertainty remains high.
Oil prices have been volatile all year, influenced by OPEC+ production decisions, global demand concerns and now geopolitical risk. The oil jump and stock slide seen this week is a classic risk-off move, where investors sell equities and buy commodities perceived as safe havens in times of turmoil.
For ordinary investors, the best approach is to stay diversified and avoid making impulsive decisions based on daily headlines. Geopolitical events can create short-term volatility, but their long-term impact on diversified portfolios is often less dramatic than it feels in the moment.
As always, the situation is developing. Markets will be watching for any signs of de-escalation or further escalation, with oil prices likely to remain the key barometer of investor sentiment in the days ahead.
