This live blog is refreshed periodically throughout the day with the latest updates from the market.To find the latest Stock Market Today threads, click here.

Happy Tuesday. This is TheStreet’s Stock Market Today for Mar. 3, 2026. You can follow the latest updates on the market here in our daily live blog.

Update: 9:30 – 10:00 a.m.

Opening Bell

The U.S. markets are now open. Following global markets lower today, the Russell 2000 (-2.81%) is off nearly three percent again, a repeat of yesterday’s opening bell. The Dow Jones (-2.2%), Nasdaq (-2.09%), and S&P 500(-2.02%) aren’t far behind, with two percent declines of their own.

An astonishing 85.9% (4,776) of U.S. equities are in decline this morning, against just 9.6% (534) that are advancing. That declining figure also seems to be increasing as the trading day advances into the 10 a.m. hour.

The Cboe Volatility Index is up 23%, at 26.43, it’s now the highest it has been in over three months.

Speaking of which, let’s dig down a little more into specifics here:

Dollar flexes safe haven status

But in currency land, there’s a small consolation for the U.S: the Dollar still’s got it. As anxiety is striking other market currencies, the Dollar Index is up 1% at 99.39, good for its biggest gain since May 2025. That’s as clear a signal that its safe haven status is still intact.

In Treasury land, the 10Y is up 1.9 bips to 4.071%. The 20Y and 30Y are 1.8 bips and 1.3 bips higher at 4.661% and 4.712% respectively. Yields have only risen since the U.S. attack on Iran, spurring worries of higher oil prices, and thus, a re-lighting of the inflation candle.

$100 oil is the big question

At this stage, a critical passing for global oil supplies remains shut: if the Strait of Hormuz remains shut, it could stand to be massively disruptive to Asian and some European energy markets. That was thought to be a fringe possibility last time the U.S. attacked Iran, but now, it’s seen as a real possibility if President Donald Trump’s special military operation exceeds four weeks (and mind you, it was only supposed to take about 48 hours, per reports).

For that reason, oil futures are now pricing a chance of even more disruption on the horizon. In continuous contracts, Brent crude is up 7.58% this morning, surpassing $83.63. The American Crude oil benchmark is up even more, +8.07% to $76.95. That spread, however, is the really telling factor here: markets seem to be weighing on a prolonged shutdown of the Strait or production.

This all comes, mind you, just a few days after OPEC+ authorized an additional 206,00 barrels of production per day. Now, you’re seeing countries like Iraq, Qatar, and Saudi Arabia slow or even halt production of energy products.

In Focus: S&P 500

Yesterday, the S&P 500 was lifted to a green finish by four sectors. Today, none of those sectors are in the green. In fact, you’d be hard-pressed to pick out many individual equities in today’s heatmap that are in the green (shoutout Costco).

In that beet red, you have Materials (-4.37%) looking the worst. Industrials (-2.73%), Utilities (-2.66%), and Technology (-2.49%) are next up on the chopping block.

Update: 8:42 a.m.

A.M. Update

Good morning. When U.S. equities opened in the States, benchmarks quickly saw their worst prints of the day. Then, they went on an hours-long rebound into the close. Today, that might be a different story. What started as a 48 hour operation is now shaping up to be at least a four to five week operation in Iran, which is sinking global stock markets.

South Korea’s KOSPI saw the largest decline in Asia, good for its worst day in 19 months. It was not a singular decline: Japan’s Nikkei 225 Index was down over 3%. In Europe, all regional stock markets were last seen down too as their market day draws to a close; Spain’s IBEX 35 was off over 5%, Italy’s FTSE MIB, -4.42%, and the STOXX Europe 600, -3.23%.

In short order, it could also be sinking the U.S. stock market, with equity futures pointing to another disappointing open for stocks. That’s to say, buckle up.