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US memory stocks melt down after South Korean bellwethers plummet

Tuesday was the first session South Korean traders could react to the US and Israeli strikes against Iran and the threat of a prolonged disruption to energy markets.

Luke Kawa

Memory stocks, the hottest pocket of the US stock market in recent months, are getting crushed, with Micron, Sandisk, Western Digital, and Seagate Technology Holdings all off at least 4.5% in premarket trading.

As of 6:35 a.m. ET, Micron and Sandisk have traded more dollar volume than any US stock outside of Nvidia, a signal of the highly motivated selling of these high-flying stocks.

The steep losses are linked to an ugly reopening for South Korean markets, home to high-bandwidth memory giants SK Hynix and Samsung, which tumbled 11.5% and 9.9%, respectively, in local markets on Tuesday.

South Korean markets were closed for a holiday on Monday, so this marked the first time traders were able to react to the US and Israeli strikes against Iran, which brings with it the threat of a prolonged disruption to energy markets. Such an outcome would be particularly challenging to South Korea, a major energy importer.

Foreign investors are leading the rout, pulling roughly $3.7 billion from KOSPI stocks on net, per Bloomberg. Retail traders in the East Asian country (dubbed “ants”) who have an affinity for leveraged products are reportedly buying the dip in a similar size.

The response to this negative catalyst is falling the hardest on SK Hynix and Samsung, whose humungous gains in 2026 pushed them to account for roughly 40% of the benchmark gauge. There may be some industry-specific chatter accentuating the losses, but at its core, this is just a parabolic trend breaking in the face of unexpected negative news.

As the fourth of famed Wall Street investment strategist Bob Farrell’s “10 rules for investing” dictates: “Exponential rapidly rising or falling markets usually go further than you think, but they do not correct by going sideways.”

Memory stocks had been the investing world’s favorite way to play the AI trade in recent months, as the outlook for a prolonged supply/demand imbalance sent prices of their offerings soaring. This dynamic prompted furious upward revisions to earnings and sales estimates for the cohort, which trade at modest valuations relative to most of the tech universe.

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GameStop pops as Q1 revenue, profit rise and retailer authorizes $2 billion of stock buybacks

GameStop shares popped after hours, as the company authorized a $2 billion stock buyback and posted a blockbuster fiscal first-quarter profit aided by unrealized gains on its options exposure to eBay stock

Here are the numbers from the retail-trader favorite: 

  • Adjusted EPS of $0.30, up from $0.17 a year earlier and above the $0.16 estimate of… precisely one analyst.

  • Revenue of $835.3 million, up 14% from a year earlier.

  • A $2 billion stock-buyback authorization, which is equivalent to about one-fifth of the company’s market cap.

  • A whopping $268 million unrealized gain because of its options exposure to eBay stock that it bought as it attempted to buy the online retailer. That led to a record quarterly net income of $389.6 million.

  • The highest first-quarter operating income ever, at $143.3 million – a number not aided by the gain in eBay stock, but rather by higher revenue and improved margins. 

Shares rose 7.1% after hours.

The buyback authorization is a particularly interesting development for GameStop, which less than two years ago issued billions of dollars worth of shares as it took advantage of surging stock prices. 

Of course, it’s worth noting that the buyback authorization can be used piecemeal fashion for the next three years, so any potential buybacks don’t have to happen anytime soon — or at all.

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GitLab shares soar on earnings and revenue beat

Shares of GitLab soared over 8% in after-hours trading after the company’s quarterly results beat analyst expectations for earnings and revenue.

For FY2027 Q1, the code development and security platform posted:

  • Revenues of $264.2 million (estimate: $254 million).

  • Adjusted earnings per share of $0.23 (estimate: $0.21).

In a press release, GitLab CEO Bill Staples wrote, “The agentic era is creating structural tailwinds for GitLab, and Q1 showed it clearly with accelerating platform activity and promising traction from GitLab Duo Agent Platform.”

As AI eats the software development world, platforms for human coders like GitLab are facing some existential threats. Last month, GitLab shares dropped after it announced a restructuring plan, slashing its country footprint by 30%, and today it confirmed that 350 team members would be cut. The company said it expects the restructing to be complete by the end of FY 2027.

Shares of GitLab were down about 15% year to date heading into the report.

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Nuclear stocks gain as federal officials approve plan to restart Three Mile Island

US officials have given Constellation Energy the green light to turn the Three Mile Island nuclear power plant back on.

On Monday night, the Federal Energy Regulatory Commission filed a waiver allowing the company to transfer grid rights from a gas-fired power plant outside Philadelphia to Three Mile Island. The company says that due to the waiver, it aims to restart the nuclear power facility by 2027 in order to supply Microsoft data centers with energy.

Additionally, other nuclear stocks like Oklo, GE Vernova, Energy Fuels, and Cameco Corp. traded higher Tuesday afternoon.

This comes after last weeks Energy Department announcement that it would provide weapons-grade plutonium to five energy startups, including Oklo, to be processed into fuel to generate electricity.

Companies have said these weapons stockpiles are a way to get nuclear reactors fueled quickly as the industry scales.

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Victoria’s Secret jumps after posting surging sales and raising full-year outlook

Victoria’s Secret shares are up more than 40% in early trading after the apparel retailer delivered a strong Q1 earnings beat and substantially lifted its full-year guidance. It was a welcome win for the company as it officially changed its stock ticker symbol to VSXY from VSCO on the New York Stock Exchange.

Key numbers:

  • Adjusted earnings per share of $0.60 (compared to analyst estimates of $0.30).

  • Net sales of $1.56 billion, a 15% year-over-year increase (estimate: $1.52 billion).

  • Adjusted operating income of $80 million (estimate: $42 million).

Comparable sales rose 13% during the quarter, beating the estimated 12%. The company said double-digit growth was recorded across its Victoria’s Secret, PINK, and Beauty brands, as well as across stores and direct and international channels.

Buoyed by the strong momentum, management raised the retailer’s full-year guidance. Victoria’s Secret now projects full-year net sales to reach between $7.03 billion and $7.13 billion, up from a previous cap of $6.95 billion. Adjusted operating income is now anticipated to land between $550 million and $580 million, a jump from the previously projected range of $430 million to $460 million.

“Our customer responded strongly to our product innovation, emotionally resonant storytelling, and distinct brand projection, driving double-digit growth in new customer acquisition, increased regular-price selling, and broad-based strength across categories, channels, and geographies,” CEO Hillary Super said in a statement. “These results reflect the progress we are making against our Path to Potential strategy as we continue to strengthen customer connection, build brand heat, and drive sustainable long-term growth.”

The company’s “Path to Potential” transformation strategy was launched to right-track the business after a multiyear stretch of declining sales and cultural scrutiny. The changed ticker also signals a fresh corporate chapter under Super, who is steering the retailer through a major brand turnaround.

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