New Tariffs. Jamie Dimon Warning. Gold Hitting All-Time Highs. Tech in Freefall. Nvidia Earnings on Deck.

Q4 earnings season is entering its final stretch.

Gold is sitting near $5,200 an ounce. A 10% global tariff took effect at midnight, even though the president said it would be 15%. 

And tonight, Trump addresses Congress in his first State of the Union of his second term.

Oh, and Nvidia reports earnings tomorrow.

This is not a slow news week.

Let's break down exactly what's happening and where investors should be looking right now.

On Friday, the Supreme Court delivered a 6-3 bombshell: Trump's sweeping tariffs, imposed under the International Emergency Economic Powers Act (IEEPA), were unconstitutional. The court ruled he didn't have the legal authority to use that law to impose tariffs. Full stop.

In the hours after the ruling, stocks initially rallied. The S&P 500 added 0.69%, the Dow climbed 230 points, and it briefly felt like investors could breathe again.

That relief lasted about 24 hours.

By Saturday, Trump was back on Truth Social. He announced a new 10% global tariff using a different legal mechanism, Section 122 of the 1974 Trade Act and then raised it to 15% the very next day. "Effective immediately," he wrote. By Monday, markets tumbled again. The Dow shed 1.66%. The S&P 500 lost 1.04%.

And then Tuesday morning arrived, and the U.S. Customs said the actual rate going live at midnight was 10%. Not 15%.

As the European Parliament's trade chair Bernd Lange put it: "No one can make sense of it anymore."

Here's the part most media coverage is glossing over.

Section 122 tariffs can only last 150 days. After that, they expire unless Congress votes to extend them. Democrats have already said they'll block any extension. So while 10%–15% tariffs sound scary, they have a built-in countdown clock.

That matters for planning. It means the tariff landscape in September looks very different from what we're waking up to today.

Angelo Kourkafas at Edward Jones put it plainly: "The 15% tariff rate is unlikely to have a meaningful impact on economic activity." He told investors not to overreact, pointing to strong corporate profit growth and healthy economic data as stabilizing forces.

But here's the other side: the trade deals Trump spent all of last year building? 

Many of them were signed under IEEPA, the law the Supreme Court just struck down. Europe's Turnberry Deal is now "on hold." India, China, Switzerland, and the UK are all in a holding pattern. The legal foundation underneath a year's worth of diplomacy just cracked.

Premarket on Tuesday, futures are recovering slightly. 

Dow futures up 0.12%. S&P 500 futures up 0.19%. Nasdaq 100 up 0.20%. Nothing dramatic, but at least it's green.

Here's what's worth watching sector by sector.

Gold is the story nobody's talking about enough. It crossed $5,192 on Monday. For context, it was around $2,600 a year ago. That's not just a tariff hedge. That's a fundamental shift in how large institutional money views geopolitical stability right now.

Safe-haven trade is alive. Healthcare stocks like Eli Lilly $LLY rose 4% yesterday after Novo Nordisk's obesity drug came up short in a head-to-head trial. Consumer staples and defensive names are holding. Investors are rotating out of risk.

Tech got hit but not because of tariffs. The real pressure in tech right now is something called the "AI disruption scare trade." IBM dropped 13% Monday. Microsoft fell 3%. CrowdStrike lost nearly 10%. Why? Because the latest generation of AI coding and security tools is raising uncomfortable questions: If AI can do this work autonomously, what happens to enterprise software prices?

This is separate from tariffs. And it's a bigger long-term story.

Speaking at JPMorgan's annual investor update on February 24, 2026, CEO Jamie Dimon issued a stark warning about the U.S. economy, drawing direct comparisons to the dangerous calm that preceded the 2008 financial crisis.

Dimon said the current environment felt similar to the three years before the crisis. "Everyone is making a lot of money, people were leveraging, the sky was the limit." He noted that some rivals are "doing dumb things" to chase net interest income, reckless lending practices reminiscent of 2005–2007.

Elevated asset prices, high trading volumes, and complacency among investors were central to his concern. He specifically flagged the software sector as a potential surprise casualty, given AI disruption, and warned that private credit stress could become "more broad-based."

His message was blunt: "I take a deep breath and say, 'watch out.'" While JPMorgan continues to perform strongly, Dimon's anxiety reflects a seasoned crisis veteran who lived through 2008 and isn't convinced history won't rhyme.

Trump speaks tonight. 

He's expected to tout economic growth and jobs. January added 130,000 jobs, above expectations. GDP grew 1.4% in Q4, though that missed the 2.5% consensus estimate. He'll likely frame the tariff chaos as a win. 

But watch what he says about tariff relief for specific industries. Any hint of sector carve-outs, exemptions, or new trade deal timelines could move markets in real time Wednesday morning.

Also watch for any Iran commentary. The U.S. has been escalating pressure on Iran's nuclear program, and any signal of military action would be an immediate shock to energy markets and risk sentiment globally.

Wednesday after the close, Nvidia reports Q4 FY2026 earnings. And this isn't just a tech event, it's a real test on whether the AI boom has real staying power.

Wall Street expects $65.7 billion in revenue. That's 67% growth YoY. Earnings per share are estimated at $1.53, up 71% from last year. The company has beaten estimates for 12 straight quarters.

But here's the thing about high expectations: they raise the bar. The real question isn't whether Nvidia beats the number. It's what CEO Jensen Huang says about the next quarter and beyond.

"Whisper numbers," the unofficial expectations on institutional trading desks are reportedly as high as $67 billion. Anything short of that, and you could see a sell-the-news reaction even on a strong beat.

What to watch: guidance for Q1 FY2027 (the whisper is $75B+), any comments on the Vera Rubin next-gen chip timeline, and how management frames competition from AMD and custom AI chips built by Google, Amazon, and Microsoft.

This report could define the tone of the entire market for March.

You've got five variables converging in 48 hours: a new tariff structure with a 150-day expiration clock, a State of the Union that markets will dissect for policy signals, Nvidia earnings that could either validate or crack the AI bull case, ongoing sector rotation into defensive plays, and gold at all-time highs.

That's not a reason to panic. It's a reason to have a clear head and a clear plan.

Here's what we're watching at Trader Insights:

Defense plays: gold, healthcare, consumer staples look strong as long as trade uncertainty persists.

Nvidia earnings on deck. Position sizing ahead of Wednesday's report matters.

Don't overreact to tariff headlines, the 150-day clock changes the math significantly.

Watch the SOTU for carve-outs. Any sector getting explicit protection or exemption could be an overnight opportunity.

The chaos is real. But so is the opportunity. That gap, between noise and signal, is exactly where smart money is made.