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Apple is the world’s most valuable company again, after gaining $400 billion yesterday

The iPhone maker rose more than 15% on its best day since 1998.

Apple just added nearly $400 billion to its market cap, with shares soaring more than 15% on Wednesday — the company’s biggest single-day gain since 1998, per CNBC.

To put that jaw-dropping ~$400 billion surge into perspective, it’s nearly as much as the market cap of Netflix ($404 billion) and just shy of a slew of consumer giants like McDonald’s, Starbucks, Adidas, and Domino’s combined.

Apple market cap gain chart
Sherwood News

Obviously, the rally was only really possible on the back of Apple’s worst four-day slide since 2000, which wiped out nearly a year’s worth of market gains, triggered by fears around President Trump’s sweeping reciprocal tariffs.

Yesterday’s surprise announcement of a 90-day pause on those tariffs seriously flipped Apple investors’ collective mood, though how long that will last is unclear. The proposed levies would still slam Apple’s sprawling overseas supply chain, which stretches across Vietnam, India, Malaysia, and Ireland, if they land in July.

On the face of it, Apple fans imitated the wider market yesterday by acting like China — where 90% of iPhones are produced — didn’t just get hit by a fresh 125% reciprocal tariff, up from the previous 104%, amid the wider reprieve. The company itself doesn’t have the luxury of operating under the same illusions, having ramped up production in India before being forced to hurriedly ship 600 tons of iPhones back earlier this week.

Despite Wednesday’s surge, Apple shares are still down 5% over the past week, though it has at least reclaimed its crown from Microsoft as the world’s most valuable company... for now.

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Airlines and cruise stocks surge as oil prices plunge

Travel stocks are surging on Wednesday, with West Texas Intermediate crude futures down 5% as of 12 p.m. ET, largely on commodity traders’ hopes of a resolution to the US war with Iran.

The decline comes despite the US Energy Information Administration reporting a record plunge in US crude inventories last week. As the country expands its oil exports to reduce the impact of the war in Iran, inventories have fallen by 7.9 million barrels, according to the EIA, indicating a significant drop in domestic supply wiggle room ahead of the summer driving season. Per Reuters, analysts had expected a drop of 2.9 million.

Bloomberg noted that US oil exports have been crucial in keeping global petroleum prices in check, as supply remains historically constrained due to the effective closure of the Straight of Hormuz. Typically, such a sharper-than-expected drop in inventories would cause oil futures to rise.

Today, however, that is not the case and oil’s pain is travel stocks’ gain, with US airlines and cruise lines surging higher on Wednesday. Delta Air Lines, United Airlines, American Airlines, Southwest Airlines, and JetBlue were all up by at least 6%, while Carnival and Norwegian were up about 7%.

Royal Caribbean pared earlier losses from Mexico’s rejection of a large planned water park, but was still down about 1%.

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Micron jumps on looming Samsung strike

Micron shares are climbing early Wednesday, breaking a sharp multiday semiconductor pullback. The rally comes amid the potential for a critical supply-side disruption at one of its largest global competitors, Samsung Electronics, as well as building investor enthusiasm ahead of Nvidia’s highly anticipated earnings report.

As demand for AI compute accelerates, Micron is increasingly viewed as a top-tier beneficiary due to its role in the critical high-bandwidth memory (HBM) market. The operational catalyst sparking Micron’s rally is a massive looming labor dispute in South Korea. According to Reuters, roughly 48,000 Samsung workers are set to begin an 18-day strike Thursday after negotiations broke down.

As global HBM production is effectively controlled by Micron, Samsung Electronics, and SK Hynix, any manufacturing hiccup at Samsung shifts pricing leverage to Micron. This backdrop comes as South Korea’s broader chip ecosystem is benefiting from the global infrastructure boom, pushing the country to the seventh-largest stock market in the world.

Micron has been expanding its own AI memory footprint. In March, the company completed its acquisition of PSMC’s Tongluo P5 site, a strategic integration designed to scale its domestic HBM production capacity and meet accelerating hyperscaler demand.

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