The Strait of Hormuz is a bit like the busiest highway toll booth on the planet. Imagine a 50 km wide highway, wedged between the Persian Gulf and the Indian Ocean: a considerable share of the world's oil passes through this corridor every day. According to Reuters, traffic there has fallen to single digits: in other words, ships are no longer counted in dozens, but on the fingers of one hand. 🚢
What exactly is a strait?
A strait is a narrow maritime passage between two landmasses. Like a narrow corridor in a building: everyone has to go through it, and if someone stops there, the line grows behind them. Hormuz connects two seas, and through this single door passes a large part of the oil that fuels Europe, Asia and the United States. When this door narrows, it is not just a boat problem: it is an entire economic chain that comes under strain.
Why it matters for your screens
Oil is like the fuel of a delivery truck: if it costs more, everything it transports becomes more expensive. A maritime route that empties out means a tighter supply of crude. Possible result: the barrel climbs, and with it companies' production costs. To put it plainly: out of €100 in transport costs, a few extra euros are enough to eat into a company's margin — and that margin is what remains once the bills are paid.
Three families of assets often react to this kind of context:
- US indices (US30, Nasdaq): more expensive energy means pressure on corporate margins. The US30 groups the 30 largest companies listed in the United States; the Nasdaq mainly brings together technology companies. These two indices are therefore sensitive to anything affecting costs.
- Gold: historically, when uncertainty rises, gold attracts. It is the safe that some investors open when the economic sky clouds over.
- The dollar: oil is paid for in dollars. A rising crude can support the US currency — and a strong dollar makes raw materials more expensive for other countries, like a price displayed in a foreign currency that climbs for the European buyer.
The mechanisms to understand (not to guess)
Three threads to follow to grasp what is at stake:
- Volatility: these mood swings of the markets. Imagine a mood thermometer: the more uncertain the news, the faster the needle moves. Geopolitical news can amplify these movements in both directions.
- The dollar: it sets the tone for raw materials. When it rises, oil becomes more expensive for countries that do not pay in dollars.
- US indices: they absorb the price of energy through the transport and industrial sectors, which consume a lot of fuel.
The classic trap: confusing news with trend
Strong information does not make a market direction. A strait can reopen as quickly as it narrowed. The role of the investor or trader is not to bet on the next headline, but to understand the mechanisms that link a maritime route, the price of crude, the dollar and the indices. It is this reading of the chain of events — and not prediction — that makes the difference over time.
To go further with this type of reasoning, the JARVIS Trading Institut training offers a structured path, from basic vocabulary to reading macro contexts. Members also find there the JARVIS METHOD, our analysis framework applied on TradingView, as well as practical tools: position calculator, session and market markers. All of this comes with a member area with progress tracking, trading journal and personal statistics in the "Mon Trading" hub.
Following the news without drowning
For those who want to keep an eye on this type of topic on a daily basis, several resources are available: the blog and the "Lectures JARVIS" for economic analyses, the glossary to decode the jargon, the country fact sheets to locate key geographical areas, and an investment journal dedicated to stocks, ETFs and crypto with prices and a weekly report. The Telegram assistant also sends a market brief every morning, a plan for the day and a news watch — enough to stay on course without being glued to screens.
Nothing is settled. A strait can reopen as quickly as it narrowed. Your job is to look at the mechanisms, not to guess what comes next.
Educational content, trading involves a risk of capital loss, neither investment advice nor tax advice.