Why the Strait of Hormuz Matters to Your Portfolio More Than You Might Think

How the Iran Conflict, Rising Oil Prices, and Global Uncertainty Could Shape U.S. Markets in the Months Ahead

Friday, May 8, 2026

Most investors don’t spend much time thinking about global shipping lanes. But every once

in a while, something halfway around the world has a way of showing up in very real ways—at the gas pump, at the grocery store, and ultimately, in your portfolio.

That’s where we are today.

The ongoing conflict involving Iran, and the growing risk of disruption in the Strait of Hormuz, is one of those moments. This narrow stretch of water carries roughly 20% of the world’s oil supply. When it flows freely, markets barely notice. When it doesn’t, everything notices.

And right now, markets are paying attention.

The most immediate impact shows up in energy prices. As tensions rise and tanker traffic slows, oil prices tend to move higher—sometimes quickly. That, in turn, works its way through the economy. Transportation costs rise. Manufacturing costs rise. And eventually, so do prices for everyday goods.

For the stock market, that creates a familiar but uncomfortable setup: uncertainty mixed with inflation pressure.

In the short term, markets don’t like uncertainty. You’ll often see increased volatility in major indices like the S&P 500 as investors try to sort out what’s temporary and what might stick. It’s not unusual to see pullbacks during moments like this—not necessarily because fundamentals have changed overnight, but because confidence takes a hit.

At the same time, not all parts of the market react the same way.

Energy companies, for example, often benefit. Firms like Exxon Mobil Corporation and Chevron Corporation tend to see improved margins as oil prices rise. That doesn’t mean they’re immune to volatility, but it does mean they can act as a partial offset when broader markets are under pressure.

Higher has prices have a way of quietly reducing discretionary spending -- people may not notice it day to ay, but it shows up over time.

On the other side, you have sectors that feel the squeeze. Airlines, transportation companies, and consumer-focused businesses tend to face higher costs at the same time consumers are feeling pinched. Higher gas prices have a way of quietly reducing discretionary spending—people may not notice it day to day, but it shows up over time.

There’s also a second layer to this that matters just as much: the Federal Reserve.

If higher energy prices push inflation back up, it complicates the Fed’s path forward. Markets have been hoping for rate cuts. A sustained spike in oil could delay that. And when rates stay higher for longer, it tends to weigh on valuations—particularly in growth-oriented parts of the market.

So, you end up with a bit of a balancing act: stronger earnings in energy, pressure elsewhere, and a macro backdrop that becomes less predictable.

Now, zoom out for a moment.

Markets have a long history of working through geopolitical events. Initial reactions can be sharp, but over time, fundamentals tend to reassert themselves. That said, when disruptions involve something as central as global energy supply, the effects can linger longer than a typical headline-driven selloff.

It’s also worth noting that events like this can accelerate longer-term shifts. Increased focus on domestic energy production, supply chain resilience, and alternative energy sources doesn’t happen overnight—but moments like this tend to move those conversations forward more quickly.

So what should investors do with all of this?

Overreaction is certainly not a good investment strategy—but don’t ignore it either.

Trying to predict short-term market moves is usually less effective than staying focused on a long-term plan.

Periods like this are a reminder of why faith, patience and discipline are crucial for successful investing.  Trying to predict short-term market moves is usually less effective than staying focused on a long-term plan.

And occasionally, it’s worth remembering—what happens in a narrow strait halfway around the world can have a surprisingly wide impact here at home.

Jim Pannell, Managing Principal

(The opinions voiced in this material are for general information only and are not intended to provide specific advice or recommendations for any individual.  All performance referenced is historical and is no guarantee of future results.  All indices are unmanaged and may not be invested into directly.)