The New Risk Premium: Hormuz, Heatwaves and Fragile Growth

Markets move when uncertainty changes what investors expect inflation, interest rates, earnings and economic growth to look like. That is the real story behind today’s market moves.

Oil prices fell sharply on Monday after US President Donald Trump held off on a fresh attack on Iran and raised the possibility of an agreement that could help reopen the Strait of Hormuz. European shares moved higher as the immediate risk of another energy shock appeared to fall. But this is not confirmed normalisation.

Iran said it was not currently holding talks with the US and that its discussions with Oman over a temporary safe route were not enough to reopen the strait fully. Markets are therefore not pricing a resolution. They are pricing the changing probability of one.

The larger story is not only about Hormuz, wildfires or recession fears. It is about investors trying to price a world in which geopolitical risk, climate risk and weak growth can all affect inflation at the same time.

What happened in markets?

Oil futures fell more than 4% in early European trading on Monday as hopes of US-Iran diplomacy reduced fears of further supply disruption.

The pan-European STOXX 600 rose 0.4%, while Germany’s DAX gained 1.4%. Energy shares fell as oil prices declined, but sectors that benefit from lower fuel costs moved in the opposite direction. Travel and leisure stocks gained 1.6%, while automobile shares rose 2.2%.

That market reaction shows the mechanism clearly. When the risk of a prolonged oil shock falls, investors can price in lower transport and production costs, less inflation pressure and a slightly easier environment for consumers and businesses. When the risk rises, the same process works in reverse.

Why the Strait of Hormuz matters?

The Strait of Hormuz is not simply another shipping route. It is one of the main channels through which Middle Eastern geopolitical risk reaches the global economy. In the first half of 2025, around 20.9 million barrels of oil passed through the strait each day. That was equal to roughly 20% of global petroleum liquids consumption and one-quarter of global maritime oil trade. More than 20% of global liquefied natural gas trade also passed through Hormuz, primarily from Qatar.

The exposure is particularly important for Asia. The US Energy Information Administration estimates that 89% of the crude oil and condensate moving through Hormuz in the first half of 2025 went to Asian markets. China, India, Japan and South Korea were the four largest destinations, accounting for a combined 74% of those flows.

For Indian readers, this is not a distant geopolitical issue. It is directly connected to the price and availability of energy imported into the region. Alternative pipelines can reduce the damage, but they cannot replace the strait.

The EIA estimates that Saudi Arabia’s East-West pipeline and the UAE’s Abu Dhabi pipeline could provide around 4.7 million barrels per day of bypass capacity during a disruption. That is useful. But it is still less than one-quarter of the oil volume that normally passes through Hormuz.

The market is therefore sensitive not only to whether the route is technically open, but also to shipping traffic, insurance costs, security conditions and whether vessel owners are willing to enter the Gulf.

Why this is really an inflation story?

The first effect of an energy shock is visible in oil and gas prices. The more important effects come later.

Higher oil prices increase the cost of petrol, aviation and road transport. Higher gas prices affect electricity, heating and energy-intensive production. Businesses may then pass some of those costs on through higher prices.

The chain can look like this:

Energy prices → transport and production costs → consumer prices → inflation expectations → central-bank policy → bond yields and equity valuations

This is why the duration of the shock matters more than one day’s oil-price move.

A brief disruption may create temporary inflation that central banks can largely look through. A longer disruption can affect wage negotiations, business pricing and household expectations, making inflation more persistent.

The Bank of England held Bank Rate at 3.75% at its July meeting. The wider challenge for central banks is clear: higher energy prices can weaken growth while also making it harder to cut interest rates quickly.

That is an uncomfortable combination. Lower growth normally strengthens the case for rate cuts. Higher inflation normally weakens it. An energy shock can produce both pressures at once.

The difference between a shock and a new regime

The OECD’s June outlook presented two possible paths. Under a time-limited energy disruption, it projected global growth of 2.8% in 2026. Under a prolonged disruption, growth fell to 2.1%, with particularly severe effects for energy-importing economies in Asia, Europe and the developing world. The difference between those scenarios is not a minor forecasting adjustment. It is the difference between a temporary shock that the economy can absorb and a longer period of higher prices, tighter financial conditions and weaker demand.

The IMF has made a similar point from a different angle. Its July update said global disinflation had stalled and that renewed conflict and financial-market repricing remained downside risks, even though technology investment continued to support parts of the global economy. This is the tension markets are trying to price. Growth has not disappeared. But the margin for error has narrowed.

Where Europe’s heatwaves and wildfires fit in?

The climate story moves more slowly than the oil market, but it belongs in the same economic discussion.

Western Europe recorded its warmest June on record in 2026. Average surface air temperatures across the region were 3.06°C above the 1991-2020 June average. By 29 July, wildfires had burned 434,976 hectares across the EU. That was above both the area burned by the same point in 2025, previously the worst year on record, and the 20-year average.

The Joint Research Centre had also recorded 1,407 fires and 17.98 million tonnes of wildfire-related CO₂ emissions since the start of the year. These figures do not mean that every wildfire will immediately move an equity index. The financial relevance appears when physical disruption reaches company earnings, food prices, insurance claims, infrastructure spending or government budgets. Extreme weather can damage property and infrastructure, reduce labour and agricultural productivity, disrupt production and alter energy demand. It can also affect tourism and require governments to redirect money towards emergency response and reconstruction.

The ECB now treats these channels as relevant to output, inflation, asset prices and financial stability. It has also highlighted Europe’s insurance protection gap, which leaves businesses, households and governments carrying much of the cost after natural disasters. Climate risk therefore becomes market risk when the physical damage begins to change cash flows, costs or public finances.

Fragile growth is not the same as recession

It is important not to turn this into a doom story. The latest activity data does not show that the UK or eurozone manufacturing sectors are collapsing. The UK manufacturing PMI remained above the 50 level that separates expansion from contraction in July, although it fell from 52.5 to 51.9. The eurozone manufacturing PMI also stood at 51.9. Output rose at its quickest pace in almost four-and-a-half years, but much of that growth came from companies completing old orders rather than receiving strong new demand. That is the definition of a fragile recovery: activity is expanding, but the demand beneath it is not yet convincing.

The recession risk comes from what happens if another cost shock meets that weak demand. Businesses with strong pricing power may protect their margins by raising prices. Businesses without it may accept lower profits, delay investment or reduce hiring. Households may respond to higher energy and food bills by cutting spending elsewhere. Central banks may then have less room to support the economy because inflation remains above target.

None of these outcomes is guaranteed. Together, however, they explain why markets feel more sensitive to every new headline.

What is a market risk premium?

A risk premium is the additional return investors demand for holding an asset exposed to uncertainty.

When the outlook becomes less predictable, investors may require:

• a higher yield to hold government or corporate bonds;
• a lower valuation before buying shares;
• a higher price to insure cargo or assets;
• or a larger discount before financing a business or transaction.

This does not mean every asset falls at the same time. The repricing can happen through rotation.

Energy shares may benefit when oil prices rise, while airlines and manufacturers face higher costs. Defensive companies may hold up better than highly valued growth businesses. Countries that export energy may behave differently from those that import it.

The important point is that the required return changes. The market is not only asking whether an asset can grow. It is asking whether the expected return is still adequate for the risk involved.

The counterargument

There are several reasons the current shock may prove temporary. A diplomatic agreement could restore confidence in Gulf shipping faster than expected. Existing pipelines can divert part of the oil supply. Higher prices can reduce demand, while producers outside the region may increase output over time.

The manufacturing data also remains in expansion territory, and lower oil prices would relieve some of the pressure on consumers and companies. Monday’s market reaction shows how quickly sentiment can reverse when the probability of de-escalation increases.

That is why it would be wrong to assume that today’s risks automatically lead to recession or permanently higher inflation. The situation is better viewed as a range of scenarios. The longer disruption lasts, the more likely temporary price increases are to affect inflation expectations, company behaviour and monetary policy. The quicker it is resolved, the more likely the risk premium fades.

What markets will watch next?

The first thing to watch is actual shipping activity through the Strait of Hormuz. Diplomatic statements matter, but physical flows, insurance availability and vessel movements provide stronger evidence of whether conditions are normalising.

The second is the persistence of oil and gas prices. A volatile daily move matters less than whether energy remains expensive for several months.

The third is evidence of second-round inflation. That includes wage growth, business pricing, transport costs and food prices.

The fourth is earnings. Airlines, transport companies, manufacturers, chemical producers, consumer businesses and insurers will show whether higher costs are becoming financially material.

Finally, climate-related losses will matter more when they begin appearing in agricultural output, tourism revenue, infrastructure spending and insurance claims.

Final thoughts

The biggest market risk is not one crisis in isolation. It is the interaction between several shocks. An energy disruption is easier to absorb when growth is strong and inflation is low. A climate event is easier to manage when public finances and insurance coverage are healthy. Weak demand is easier for central banks to support when prices are stable.

The current environment offers fewer of those comforts. That does not mean markets are heading towards an inevitable recession or crisis. It means investors are being asked to price more uncertainty into the same set of assets.

The market is not afraid of uncertainty in the abstract. It is afraid of uncertainty that changes inflation, interest rates, earnings and growth. That is the new risk premium. And the volatility we are seeing is not separate from the story. It is the pricing process itself.

Sources

1. US Energy Information Administration — World Oil Transit Chokepoints, updated 3 March 2026
2. Reuters — Oil tumbles as Trump cancels attack on Iran to reach nuclear deal, 3 August 2026
3. Reuters — Iran says no current talks with US, 3 August 2026
4. Reuters — European shares start August higher on US-Iran diplomacy hopes, 3 August 2026
5. European Commission Joint Research Centre — Current wildfire situation in Europe
6. Copernicus Climate Change Service — Hottest June on record for western Europe, July 2026
7. European Central Bank — Climate change and monetary policy, 5 May 2026
8. OECD — Global economic outlook weakens amid energy shock and rising inflationary pressures, June 2026
9. International Monetary Fund — World Economic Outlook Update, July 2026
10. Bank of England — Monetary Policy Report, July 2026
11. Reuters — UK July manufacturing PMI revised down to a four-month low, 3 August 2026
12. Reuters — Eurozone factory output rises but demand remains weak, 3 August 2026

Disclaimer: The views expressed in this article are my own and do not represent those of my employer or any affiliated organisation. This article is for informational and educational purposes only and should not be considered financial, investment or trading advice. Investors should conduct their own research and consider their individual financial circumstances before making any investment decisions.