Meta description: Nvidia locked down a landmark $500 billion AI memory deal with SK Hynix and a $200 billion Samsung-Broadcom pact followed — yet Nvidia shares still fell nearly 5%. Here's the full breakdown.
On paper, it was one of the biggest AI infrastructure announcements of the year: Nvidia locked down a multi-year memory supply agreement with SK Hynix potentially worth up to $500 billion. Yet despite the scale of the deal, Nvidia shares still fell nearly 5% in the days that followed — a reaction that says as much about where AI sentiment stands right now as it does about the deal itself.
Inside the deal
Announced late on July 24 at an AI summit in San Francisco — attended by South Korean President Lee Jae Myung — the agreement centers on securing high-bandwidth memory (HBM) supply, specifically SK Hynix's HBM3E and next-generation HBM4 chips, which sit directly alongside Nvidia's GPUs and are essential to feeding data to AI accelerators fast enough to keep them running at full capacity. As part of the broader partnership, SK Hynix affiliate SK Telecom will build a massive 2-gigawatt AI data center using Nvidia's next-generation Vera Rubin systems, with the first facility expected online in 2027. Nvidia also announced a separate $1 billion investment in Korean cloud company Naver.
Samsung joins the party too
Nvidia wasn't the only company moving on Korean AI infrastructure that week. Samsung Electronics signed its own $200 billion memorandum of understanding with chip designer Broadcom, covering expanded collaboration across memory and foundry technologies. Combined, roughly $950 billion in new AI-related agreements were signed within days, positioning South Korea as arguably the most central country to the next phase of global AI infrastructure buildout.
Why this deal matters strategically
The arrangement effectively gives Nvidia priority access to SK Hynix's leading-edge HBM output, ahead of hyperscaler rivals like Google, Amazon, and Meta, which have all invested heavily in custom AI accelerator programs that depend on access to the same constrained HBM supply. Because HBM requires close co-engineering between GPU designer and memory manufacturer, a supply gap doesn't just slow one chip down — it can force a full program redesign, adding well over a year to a rival's realistic production timeline. That dynamic effectively extends the window in which Nvidia's most advanced GPUs face limited internal competition from hyperscaler-built silicon.
So why did the stock fall?
The disconnect between deal size and stock reaction reflects the same broader anxiety now weighing on the entire AI infrastructure trade: investors are increasingly focused on whether the enormous capital flowing through these arrangements — deals, supply agreements, and cross-investments between the same small group of companies — will actually convert into durable profit, rather than simply on the headline dollar figures. That skepticism, sometimes described as concern over "circular financing" among AI infrastructure players, has been weighing on chip stocks broadly this week (see our companion post on the SK Hynix and Samsung selloff for more).
What to watch next
- Regulatory scrutiny, since antitrust regulators in the EU, US, and South Korea are already examining Nvidia's position in AI accelerators, and a $500 billion preferential-supply arrangement could sharpen that focus
- Rival hyperscaler responses, as Google, Amazon, and Meta may need to secure their own long-term HBM commitments to avoid falling further behind
- Whether the 2027 data center timeline holds, given the scale and complexity of the 2-gigawatt buildout
- Samsung's execution on its own Broadcom pact, as a signal of whether Korea's broader AI infrastructure ambitions are gaining real traction
Bottom line
Nvidia's $500 billion SK Hynix deal reinforces the company's grip on the AI memory supply chain for years to come — but the market's muted, even negative, reaction shows that headline deal size alone isn't enough to reassure investors anymore. The real test will be whether these arrangements start showing up as durable profit rather than just bigger numbers on a press release.
This post is based on reporting from CNBC, GuruFocus, HotHardware, CoinCentral, Blockonomi, and FourWeekMBA as of July 24-28, 2026. This content is for informational purposes only and does not constitute investment advice.
