Top 5 Trump News That Moved Markets This Week

Donald Trump’s threats against Iran and a new wave of tariffs dominated financial markets between July 19 and July 25.

Oil prices climbed as geopolitical risks increased. Meanwhile, trade measures targeting dozens of economies raised fresh concerns about inflation, corporate costs and interest rates.

Here are the five Trump developments that mattered most for markets this week.

🇺🇸🇮🇷 Trump ordered the U.S. military to stand down from Iran strikes today, breaking a 13-day streak of daily attacksWhy now: An Omani delegation arrived in Tehran hours earlier for talks on reopening the Strait of Hormuz. Two regional sources say progress has been made. A… pic.twitter.com/V9dsiyZwTh

— Mario Nawfal (@MarioNawfal) July 25, 2026

1. Iran Threat Sends Oil Above $100

Trump threatened Iran with major military action after further Houthi attacks on commercial shipping. He said Tehran could face consequences if the attacks continued.

The comments immediately increased fears of disruption in the Red Sea and the Strait of Hormuz. Both routes play an important role in global oil and shipping markets.

Oil is back above $100, and gas is above $4. These numbers are brutal for inflation and Americans' pocketbooks. And there is no end in sight for their fundamental cause: Trump's war of choice in Iran. pic.twitter.com/LtTEpYrGjf

— Steve Rattner (@SteveRattner) July 23, 2026

Brent crude briefly rose above $100 a barrel. Higher oil prices can increase transport and production costs, which may push inflation higher.

That could delay interest rate cuts or force central banks to maintain tighter policy. Technology stocks and Bitcoin also faced pressure as bond yields climbed and investors reduced exposure to riskier assets.

2. Trump’s Tariff Wall Gets Wider

Trump ordered new tariffs of 10% or 12.5% on goods from 60 economies. The affected markets include China, India, the European Union, Japan and South Korea.

The measures cover a large share of US trade. They could raise costs for retailers, manufacturers and companies that rely on imported components.

Businesses may pass some of those costs to consumers. That would keep inflation elevated and make it harder for the Federal Reserve to reduce interest rates.

TRUMP JUST IMPOSED NEW TARIFFS ON 60 COUNTRIES STARTING TODAY.The Supreme Court struck down Trump's original "Liberation Day" tariffs in February. In response, Trump imposed temporary 10% global tariffs as a placeholder. Those tariffs were set to expire today, and today's new… pic.twitter.com/eoc3EFbs37

— Bull Theory (@BullTheoryio) July 24, 2026

The tariffs could also hurt corporate profit margins. Consumer goods companies, automakers and technology manufacturers face some of the highest risks.

3. Canada Becomes the Latest Trade Target

Trump announced additional 50% tariffs on around $20 billion of Canadian products. The affected goods include dairy, wine, furniture, cement and sporting equipment.

Energy and critical minerals received exemptions. However, the decision still raised fears of retaliation from Canada and further disruption to North American supply chains.

The Canadian dollar weakened during the week as trade uncertainty increased. US companies that import Canadian products may also face higher costs when the tariffs begin in August.

🇺🇸🇨🇦 Trump dropped a HUGE bombshell on Canada!After they disinvited the U.S. from the Gordie Howe Bridge opening, he fired back hard: the original deal is DEAD. The U.S. is now taking 50% of the profits, and Canada can keep paying those big tariffs.He’s not playing nice, by… pic.twitter.com/GAG7ZtIqDu

— Mario Nawfal (@MarioNawfal) July 24, 2026

The dispute could reduce trade between two closely connected economies. It may also increase prices for construction materials and some consumer products.

4. Defence Firms Face a China Supply Chain Test

Trump signed an order tightening restrictions on foreign materials used by US defence contractors. Companies will face tougher rules when seeking permission to buy critical minerals or components from China and other restricted markets.

The order could benefit American rare-earth miners and metal processors. Shares in some domestic suppliers rose after the announcement.

However, defence and aerospace companies may face higher costs during the transition. China remains a major supplier of several minerals used in military equipment and advanced electronics.

Supply shortages could delay production and increase government contract costs.

5. Aluminum Tariffs Get an Investment Clause

Trump introduced a new system linking aluminum tariff relief to investment in US production. Companies that build or expand American smelters may import a matching amount of aluminum at a reduced tariff rate.

The policy could support US aluminum producers and encourage new domestic investment. It could also create higher costs for businesses that cannot qualify for the reduced rate.

Automakers, construction companies and beverage manufacturers use large amounts of aluminum. Any rise in metal prices could affect their margins and eventually reach consumers.

🇨🇦 Canada slapped 200-300% tariffs on American dairy.Called it protecting Canadian farmers.Americans called it what it was.Now imagine Trump wakes up tomorrow and hits Canada with 200-300% tariffs on everything we export.Lumber. Oil. Auto parts. Steel. Aluminum.The…

— wealthmoose (@wealthmoose) July 24, 2026

Overall, Trump’s actions this week placed oil, tariffs and inflation back at the centre of market attention. Investors will now watch whether the measures trigger retaliation, higher consumer prices or a wider Middle East conflict.