Nvidia's Hundred-Billion-Dollar Capital Play, AMD Locking In HBM, and Korea's Liquidity Vacuum: AI and Energy Markets Under Pressure on Multiple Fronts

Between October 7 and 8, global markets released a dense set of signals across three main threads: AI capital expansion, semiconductor supply chain restructuring, and Middle East geopolitical conflict. Nvidia is reshaping the AI ecosystem with hundred-billion-dollar investments, while AMD went to South Korea to lock in HBM4 supply. At the same time, South Korean stocks face a liquidity vacuum as the largest-ever buyback program exits early, and expectations of an escalating US-Iran conflict are driving oil prices and tanker freight rates sharply higher. ^[1][2][3][4]

Nvidia: From Chip Giant to 'AI Central Bank'

Nvidia is reshaping the AI industry landscape at unprecedented speed and scale. Over the past few months, the chip giant has completed more than $140 billion in deals and holds an equity investment portfolio of nearly $100 billion, with strategic intent far beyond simply selling chips. Jensen Huang is trying to use capital to build an ecosystem of thousands of AI models, diversifying risk from dependence on a handful of top customers. On October 7, according to tech media The Information, Nvidia's next phase of investment will focus on humanoid robots, autonomous driving technology, and AI models that can run on local devices. Nvidia has already discussed investing an additional roughly $1 billion in humanoid robotics company Figure, which was valued at about $38 billion before this funding round. ^[1]

Nvidia disclosed that in the six months through July, three customers accounted for 44% of its total sales; an overly concentrated customer structure is the core driver behind this hundred-billion-dollar capital campaign. Meanwhile, Nvidia's credit default swap spreads widened at one point in August, with some investors expressing concern about its financial risk exposure. On the model side, Nvidia has invested in Anthropic, Musk's xAI, and open-source model company Reflection AI. In addition, Nvidia completed a $6 billion software licensing and talent acquisition deal for Poolside, partly to advance development of its own open-source model Nemotron. ^[1]

Nvidia's acquisition of Hugging Face is one of the most representative cases in this deal frenzy. Hugging Face is a ten-year-old open-source AI model platform; in early summer this year, OpenAI opened investment talks after hacking into its systems, planning to inject $100 million, while competitors such as Salesforce also expressed acquisition interest. The key turning point came after Hugging Face co-founder Clem Delangue reached out to Jensen Huang. In the end, Nvidia completed the acquisition for $12.9 billion, more than 80 times Hugging Face's roughly $150 million in annualized revenue. Delangue said: 'Throughout Hugging Face's history, we received many investment and acquisition offers and declined them in the past, but this summer, the timing was right.' ^[1]

On data center projects, Nvidia initially discussed with SoftBank providing up to $250 billion in credit support to help OpenAI lease a large data center that SB Energy would develop on federal land in Ohio. However, Nvidia's credit default swap spreads widened in August, and the company ultimately reduced the first-phase credit guarantee to $105 billion and advanced the project in stages. At the same time, Nvidia also committed to invest $3 billion around SB Energy's IPO. In addition, Nvidia participated in OpenAI's recent funding round with a $30 billion investment, with the final $10 billion settled on October 1. To diversify financing pressure, Huang convened six Wall Street institutions in early August, including Blackstone, Apollo Global Management, and Goldman Sachs, to jointly support $500 billion in hardware financing; Nvidia said it may provide up to 25% backstop protection for some related transactions. ^[1]

AMD's Korea Visit: Locking In HBM4 and a 3-5 Year Supply Chain

AMD CEO Lisa Su visited South Korea on October 7, meeting intensively with senior executives from Samsung Electronics and SK Hynix that day, and at a media briefing unusually quantified the cooperation framework: 'Supply chain planning needs three to five years or even longer, not a short-term arrangement of one to three years.' This was Su's second visit to South Korea in seven months. The visit also brought an important disclosure: AMD publicly confirmed for the first time that SK Hynix will supply HBM4 for its AI accelerators and server platforms. Previously, the market widely believed Samsung was AMD's sole source of HBM4. Su said, 'The next-generation MI455 and Helios systems have both begun shipping, all using HBM4, and both Samsung and SK Hynix have provided strong support.' She also stressed, 'HBM cooperation will not stop at a single product generation, but will continue across multiple generations.' ^[2]

Demand-side pressure is significant. AMD's latest AI accelerator MI455X carries 432GB of HBM4 per chip, a 50% increase over the previous generation MI355X's 288GB of HBM3E. This means that even if shipment volumes remain unchanged, the total HBM capacity required rises substantially. Market research firm TrendForce predicted at the end of last month that HBM and ordinary DRAM share advanced process capacity, and given that new products need time for yield and output ramp-up, memory supply tightness is expected to continue into next year. Su said of this: 'Memory supply is currently very tight. On the one hand, we are working with customers to optimize memory usage efficiency; on the other hand, we are also asking partners to increase capacity as quickly as possible.' ^[2]

Samsung's demands in the talks go beyond HBM supply. According to reports, Samsung hopes to extend the memory supply relationship into foundry business. When Su first visited South Korea in March this year, the two sides signed an MOU at Samsung's Pyeongtaek campus, confirming that Samsung would supply HBM4 for AMD's Instinct MI455X and provide high-performance DDR5 DRAM for the Helios platform and sixth-generation EPYC server CPUs, while also exploring the possibility of Samsung foundry manufacturing AMD chips. However, AMD is cautious on foundry cooperation; currently its high-end CPUs and GPUs are all produced by TSMC, and MI455X also uses TSMC process. Asked about progress on foundry cooperation with Samsung, Su left room: 'AMD has grown very fast in recent years, and having a broad supply chain is very important. Samsung is an excellent partner in many areas, and we will continue to seek cooperation opportunities.' ^[2]

Software ecosystem and local presence are advancing in parallel. That morning, Su met with Ryu Je-myeong, second vice minister of South Korea's Ministry of Science and ICT, at the Four Seasons Hotel Seoul, and then held a roundtable with 13 Korean AI startups including FuriosaAI, DeepX, Fadu, and Upstage, focusing on connecting local hardware and software developers to AMD's open-source ROCm platform. AMD also plans to establish an 'AI Center of Excellence' in South Korea, expected to recruit hundreds of AI researchers. The plan stems from a memorandum of understanding signed between AMD and South Korea's Ministry of Science and ICT in July this year. Su had originally planned to stay two days in Korea, but due to a last-minute Washington trip, the visit was shortened to one day. ^[2]

Korea's Stock Liquidity Vacuum: Buybacks Exit Early

South Korea's stock market is facing a critical liquidity test. The last line of defense that kept the KOSPI barely stable under persistent selling pressure from retail and foreign investors — the largest-ever stock buyback program by Samsung Electronics and SK Hynix, totaling about $40 billion — has ended weeks early. Samsung Electronics' buyback plan ended this week, and SK Hynix's is only days from completion. In the two months before that, these two companies were almost the only net buyers in the Korean stock market, single-handedly absorbing more than $25 billion in combined selling pressure from foreign and retail investors. With corporate buyback support suddenly withdrawn, the KOSPI fell 2% on Wednesday (October 7), again losing the 7,000 mark, while foreign investors net sold $1.9 billion in a single day. ^[3]

More unfavorable still, Samsung Electronics' third-quarter results were also released, with both revenue and operating profit below market expectations, and October 8 will see multiple events overlap, including semiconductor ETF rebalancing and options expiration, sharply raising market volatility risk. Goldman Sachs' fund flow statistics for Samsung Electronics for the month through October 2 show: corporate buybacks net bought +$8.5 billion, the largest single buyer; local institutions net bought +$2.5 billion; retail investors net sold -$7.5 billion; foreign investors net sold -$3.4 billion; pensions net sold -$300 million. In other words, Samsung's own buyback scale was more than three times the sum of all other buyers. Excluding corporate buybacks, almost no investor was willing to net buy Samsung stock in September. ^[3]

Goldman Sachs Seoul analyst Heather Oh estimated in a September 30 report that both buyback programs would be completed substantially ahead of their November deadlines: Samsung Electronics' buyback was 87.3% complete, with 13.1 trillion won executed against a 15 trillion won target; SK Hynix's buyback was 74.8% complete, with 29.9 trillion won executed against a 40 trillion won target. Bloomberg's statistics the same day were consistent with that conclusion: about 80% of the two plans combined had been executed, with overall completion about a month ahead of the original schedule. SK Securities analyst Cho Junkee warned that after the buybacks end, they 'could to some extent increase market volatility.' A week later, that prediction came true. ^[3]

Goldman Sachs boils down the path ahead to two key questions: whether foreign investors will return to the Korean market, and whether Samsung and SK Hynix can maintain strong earnings momentum and guidance. The bullish case is that AI core fundamentals remain solid, and if the two companies announce a new round of shareholder return plans at their late-October earnings calls, market confidence could be reactivated. The bearish case is more direct: the market never truly cleared supply and demand at current prices, and the 7,000 'support' is essentially a price artificially created by a buyer that has now stopped buying. The KOSPI fell about 17% cumulatively in the third quarter, one of the worst performances among major global benchmarks. Meanwhile, South Korea's energy minister acknowledged that data center electricity demand forecasts were 'indeed overstated,' and related grid concept stocks fell sharply that day. ^[3]

US-Iran Conflict and Oil Shipping: Oil Prices and Freight Rates Soar

The US-Iran conflict has entered a critical juncture, with expectations of military escalation and a negotiating stalemate fermenting simultaneously, sending oil prices sharply higher. According to Xinhua News Agency, US President Trump publicly said on the 6th that military action against Iran 'must be wrapped up,' and said the only remaining question was 'whether to wrap it up softly or forcefully.' According to Bloomberg on October 8, The Atlantic, citing two US government officials, reported that the White House has asked the Pentagon to draw up strike plans against Iranian targets, and that related action could be carried out before next month's midterm elections. This report directly shattered the market's previous widespread expectation that Trump would remain relatively restrained before the election. ^[4]

After the news emerged, oil prices rose in response. West Texas Intermediate (WTI) crude rose toward $89 a barrel, Brent closed near $100 a barrel on Wednesday, and has now climbed above $101 a barrel. At the same time, Tropical Storm Isaias forced more than a quarter of Gulf of Mexico crude production to shut in, further intensifying supply-side pressure. Trump's 'wrap up' remarks still leave strategic ambiguity; since the US and Israel launched military strikes against Iran on February 28 this year, the United States has used airstrikes, maritime blockades, and economic pressure against Iran, and the conflict has now lasted more than seven months without ending. ^[4]

Regarding control of the Strait of Hormuz, the US and Iran have sharply opposing accounts. According to Bloomberg, US Central Command posted on social media that 20 million barrels of crude oil currently flow through the Strait of Hormuz each day, unchanged from pre-conflict levels and above the 12 million barrels per day estimate given by Vitol CEO Hardy. However, Iranian state media Tasnim cited data saying that crude oil volumes passing through the Strait of Hormuz have fallen sharply to about 3.8 million barrels per day over the past two days, with a weekly average of about 9.3 million barrels per day. On the actual conflict level, more than ten Iranian drone attacks on foreign transit vessels have occurred in the past eight days. On October 7, a tanker was hit by 'multiple projectiles' about 51 nautical miles north of Qatar, causing casualties. ^[4]

The oil shipping market has also shown structural distortions. According to the Financial Times on Wednesday, PIF Energy CEO Ben Morrow, based in Dallas, said the company is spending $2 billion to acquire a fleet of as many as 15 older supertankers, aiming to transport Iraqi and Saudi Aramco crude through the Strait of Hormuz to refiners in India, Indonesia, and Europe. Unlike the historical norm in which traders usually charter ships rather than own assets, Morrow chose to buy the fleet directly. He said the fleet would receive escort guidance from a US government-authorized 'Tier 1 security team,' and acknowledged that the deal would require 'perfect insurance arrangements, perfect banking arrangements, and security guarantees' to work. ^[6]

Soaring freight rates are reshaping asset prices. According to Bloomberg data, the cost of chartering a very large crude carrier (VLCC) to transport US crude to Asia has risen to $77 million, while the 2025 full-year average was only $9.2 million. According to shipbroker Clarksons, the average price of a 15-year-old VLCC is about $160 million, up 44% from three months ago and higher than the $131 million newbuild price — a phenomenon in which secondhand ship prices exceed newbuild prices is extremely rare in the industry. Meanwhile, the monthly salary for captains willing to sail through the strait has reached as high as $100,000, and daily rates for supertankers on Middle East routes have at one point hit a historic high of $1.3 million. The ClarkSea Index had set record highs for four consecutive weeks as of October 2, reaching $75,658 per day, up 73% in a single month, with the year-to-date average up 66% year-on-year and 84% above the 10-year average. ^[6]

Iraq's situation is more passive. Lacking its own tanker fleet, Iraq has had to offer buyers large discounts to keep crude sales going. Trump met Iraqi Prime Minister Ali al-Zaidi at the White House in July this year, praised him for 'doing a great job,' and said Iraq has 'tremendous potential' because of its oil resources. At the same time, US companies are accelerating their push into Iraq's energy sector — Chevron is in advanced talks to build a pipeline to Syria, and Dallas-based private energy company HKN Energy has signed an agreement to develop the Hamrin oil field. ^[6]

Meta's AI Agent Muse: Access Barriers Replace Model Capability

Meta's AI agent Muse is facing a practical threshold: blocked website access is becoming the core bottleneck for commercializing its agentic commerce, rather than model capability itself. According to Zhuifeng Trading Desk, Jefferies said in its latest research report that after testing hundreds of mainstream US e-commerce, airline, online travel, hotel, and booking websites, the analyst team found that about one-third of websites directly block Muse access, another one-third set challenges or restrictions, and only about one-third can be used smoothly. If this access friction continues to develop, it could delay Meta's agentic commerce monetization timeline while further consolidating Google's structural advantage. ^[5]

Jefferies analyst Brent Thill's team pointed out that Muse's technical capabilities remain impressive, but the bottleneck for agentic commerce is shifting from 'is the model good enough' to 'can it get in.' The test results show that website restrictions on agent access are being added almost every day. The report argues that many websites choosing to block or challenge automated interaction by default is the wrong decision in the long run, because agentic commerce will broaden distribution channels. Meta's response strategy is to build authorized connectors with merchants, and it has announced partnerships with Walmart, Best Buy, Wayfair, Sephora, and Dick's Sporting Goods, but most integrations are still in early deployment and have not yet officially launched. ^[5]

The access barrier problem objectively highlights Google's structural advantage. The Jefferies report notes that the vast majority of companies are unwilling to block Googlebot because doing so would have a substantial impact on their search traffic. This reality gives Google a significant advantage in data acquisition and web access, and as the AI agent era arrives, the value of this moat may rise further. At the same time, the surge in customer service inquiries brought by agentic commerce also creates new market opportunities for enterprise customer service software vendors. In its testing, Jefferies found that Muse interacts most frequently with companies' self-built customer service systems, followed by CRM systems and Sierra. ^[5]

Although agentic commerce monetization faces timeline uncertainty, Meta's advertising business fundamentals have not been dragged down. Jefferies' third-quarter 2026 advertising expert survey shows that 40% of advertisers expect Muse to increase their clients' ad spending on Meta platforms over the next 12 months. Surveyed advertising experts also noted that as agentic AI handles more queries, advertising optimization goals will shift from clicks to outcome-oriented results. Jefferies maintains a Buy rating on Meta with an $875 price target, corresponding to about 25 times 2027 expected earnings per share. ^[5]

Summary: Capital, Supply Chains, and Geopolitical Risk Intertwined

From Nvidia's hundred-billion-dollar capital play to AMD's Korea supply chain lock-in, from Korean stock buybacks exiting to the US-Iran conflict driving oil prices higher, the common thread in today's market is this: competition in AI and semiconductor supply chains is extending from the technology level to capital, capacity, and geopolitics, while liquidity support and energy supply have become the most sensitive weak links. Nvidia is diversifying customer concentration risk through investment, AMD is seeking three-to-five-year supply chain guarantees, but South Korea's stock market faces a 'liquidity vacuum' after its largest buyer exits. Meanwhile, expectations of an escalating US-Iran conflict have pushed oil prices and VLCC freight rates to historic levels; PIF Energy's $2 billion bet on old tankers reflects rare asset pricing amid scarce shipping capacity. Going forward, watch for more Nvidia deals landing, progress in AMD-Samsung foundry cooperation, whether Samsung and SK Hynix roll out new shareholder return plans, and the linkage between Strait of Hormuz traffic volumes, oil prices, and freight rates. ^{[1][2][3][4][5][6]}