Stock Market Today: Stocks Drop as Trump Takes Aim at EU, Apple
The commander in chief issued new tariff threats against the European Union and the iPhone maker.
Stocks opened sharply lower Friday, with investors spooked by President Donald Trump's latest tariff threats. The main indexes came off their lows throughout the session, but still headed into the long holiday weekend with stiff weekly losses.
As a reminder, Monday is a stock market holiday, with both the equities and bond markets closed in observance of Memorial Day.
Today, all eyes were on Washington, D.C., after Trump threatened the European Union with 50% tariffs due to difficulties in trade negotiations.
From just $107.88 $24.99 for Kiplinger Personal Finance
Be a smarter, better informed investor.
Sign up for Kiplinger’s Free Newsletters
Profit and prosper with the best of expert advice on investing, taxes, retirement, personal finance and more - straight to your e-mail.
Profit and prosper with the best of expert advice - straight to your e-mail.
"Our discussions with them are going nowhere!," Trump posted on Truth Social. "Therefore, I am recommending a straight 50% Tariff on the European Union, starting on June 1, 2025. There is no Tariff if the product is built or manufactured in the United States."
Trump threatens Apple with 25% tariffs
Trump also took aim at Apple (AAPL), warning the tech giant that it will get hit with 25% tariffs on its iPhones if it does not move production back to the United States.
In a separate post, Trump wrote that he "long ago informed Tim Cook of Apple that I expect their iPhone's that will be sold in the United States of America will be manufactured and built in the United States, not India, or anyplace else."
Trump added that if this is not the case, "a Tariff of at least 25% must be paid by Apple to the U.S."
Reuters reported in late April that the tech giant is planning to move most of its manufacturing for iPhones sold in the U.S. to India by the end of this year.
In a May 16 note to clients, Wedbush analyst Daniel Ives wrote that Apple's "aggressive push towards India production has been a very smart strategic move given the uncertain tariff environment facing Apple in China."
He added that he anticipates "more pressure from the Trump Administration on Apple to build iPhone production in the U.S.," but doing so "would result in an iPhone price point that is a non-starter for Cupertino and translate into iPhone prices of ~$3,500."
Apple stock closed down 3.0% today, easily making it the worst Dow Jones stock.
Oklo pops on President Trump's new executive order
Oklo (OKLO) stock jumped 23% after President Trump issued new executive orders aimed at boosting nuclear energy.
Trump's directives call for a "total and complete reform" of the Nuclear Regulatory Commission (NRC), a decades-old agency that regulates the country's nuclear reactors.
It also requires the Departments of Energy and Defense to create a regulatory framework aimed at constructing nuclear reactors on federal land.
These orders will allow "for safe and reliable nuclear energy to power and operate critical defense facilities and AI data centers," a Trump administration official told reporters, according to CNBC.
Oklo is a nuclear technology company that designs and builds reactors, and its share price has more than doubled for the year to date.
Wedbush's Ives sees even more upside for the utility stock and raised his price target to $55 from $45 on Friday.
"Our confidence in the AI Revolution data-center buildout is increasing under the Trump Administration with nuclear energy ultimately playing a key role in powering data centers at the foundation of the fourth Industrial Revolution, and OKLO is set to be a major player," he says.
Deckers Outdoor slides after earnings
Deckers Outdoor (DECK, -19.9%) was the worst S&P 500 stock Friday after the UGG maker reported earnings.
While the footwear company disclosed higher-than-expected fiscal fourth-quarter earnings, it failed to give full-year guidance for fiscal 2026 due to "macroeconomic uncertainty related to evolving global trade policies."
It also forecast fiscal first-quarter earnings and revenue that are lower than what Wall Street anticipates.
Still, UBS Global Research analyst Jay Sole reiterated his Buy rating on the consumer discretionary stock.
"We see a very good opportunity to buy shares in a growth company on a big pullback," Sole writes in a note to clients. "We expect DECK's EPS to positively surprise over the next couple quarters due to its Hoka brand sales growth rate accelerating."
As for the main indexes, the Dow Jones Industrial Average fell 0.6% to 41,603, the S&P 500 dropped 0.7% to 5,802, and the Nasdaq Composite slid 1% to 18,737. The three indexes finished with weekly losses ranging from 2.4% to 2.6%.
Related content
- Can Trump Fire Powell? This Supreme Court Says Not Right Now
- Nvidia Earnings: Live Updates and Commentary May 2025
- Hot Upcoming IPOs to Watch
Profit and prosper with the best of Kiplinger's advice on investing, taxes, retirement, personal finance and much more. Delivered daily. Enter your email in the box and click Sign Me Up.

With over a decade of experience writing about the stock market, Karee Venema is the senior investing editor at Kiplinger.com. She joined the publication in April 2021 after 10 years of working as an investing writer and columnist at a local investment research firm. In her previous role, Karee focused primarily on options trading, as well as technical, fundamental and sentiment analysis.
-
Nvidia Earnings: Live Updates and Commentary November 2025Nvidia's earnings event is just days away and Wall Street is zeroed in on the AI bellwether's third-quarter results.
-
What You Will Pay for Medicare in 2026Medicare premiums for 2026, as well as the costs of Parts A, B, and D, have increased. Here is how much you'll pay in 2026.
-
Nvidia Earnings: Live Updates and Commentary November 2025Nvidia's earnings event is just days away and Wall Street is zeroed in on the AI bellwether's third-quarter results.
-
Your Four-Step Guide to True Financial Freedom, From a Financial PlannerYes, you can achieve financial independence, even if it seems elusive. While it may not be an easy journey, these are the steps to get things rolling.
-
The Private Annuity Sale: A Smart Way to Reduce Your Estate TaxesIn a private annuity sale, you transfer a highly appreciated asset to an irrevocable trust in exchange for a lifetime annuity.
-
I'm a Real Estate Investing Pro: This High-Performance Investment Vehicle Can Move Your Wealth Up a GearLeave online real estate investing to the beginners. Accredited investors who want real growth need the wealth-building potential of Delaware statutory trusts.
-
These Eight Tips From a Retirement Expert Can Help to Make Your Money Last Through RetirementAre you worried you will outlive your money? Considering these eight tips could go a long way toward ensuring your retirement money lasts as long as you do.
-
I'm an Investment Adviser: This Is the Retirement Phase Nobody Talks AboutWhat you do in the five years before retirement and the first 10 afterward can establish how comfortable you'll be for the rest of your life.
-
Gen X Turns 60: It's Time to Remix Your Retirement PlaylistIf you want a worry-free retirement, you can't keep playing the same old song. You need to freshen up your financial strategies, as well as your music.
-
I'm a Financial Adviser: Here's How a Three-Part Retirement 'Crash Plan' Can Prepare You for Market TurbulenceHaving a plan ready to go when markets get wild — covering how you'll handle income, rebalancing and taxes — can be the ultimate retirement secret weapon.