NVIDIA'S extraordinary dependence on chief executive Jensen Huang has emerged as a major concern for investors after reports linking him to a woman suspected of working for Chinese intelligence triggered a sharp sell-off that wiped about US$1 trillion off the chipmaker's market value.
The controversy has put the spotlight on the leadership risks surrounding one of the world's most valuable companies, with questions over Huang's future threatening to unsettle investor confidence at a time when competition in artificial intelligence (AI) chipmaking is intensifying.
Huang, who acknowledged having an extramarital affair, is facing scrutiny following media reports that the woman had grown close to him. A Chinese government spokesman dismissed the "so-called Chinese spy allegation" as unsubstantiated.
Bloomberg, on Thursday cited that the market reaction reflects the extraordinary influence Huang has wielded over Nvidia's transformation from a graphics processing unit (GPU) manufacturer focused on gaming into the dominant supplier of advanced processors powering the global AI industry.
His decision to redirect the company's technology towards AI accelerators, coupled with extensive international lobbying, helped propel Nvidia into the ranks of the world's largest companies.
The company's market capitalisation, which stood at around US$4 trillion following the latest sell-off, illustrates the scale of the potential fallout from any leadership disruption.
Nvidia's remarkable ascent began gathering momentum after OpenAI launched ChatGPT on Nov 30, 2022, triggering an unprecedented surge in demand for computing power and the specialised chips needed to develop and operate AI systems.
Its share price subsequently climbed fourteen-fold, reaching a peak on Oct 6.
Demand from major data-centre customers, including Alphabet, Amazon and Microsoft, helped Nvidia overtake all three companies in market value for the first time in mid-2024.
In 2025, it became the first company to surpass US$4 trillion and US$5 trillion in market capitalisation, before approaching the US$6 trillion threshold in early October.
However, investor concerns over stretched AI valuations, rising borrowing by companies financing the technology boom and uncertainty surrounding the sustainability of data-centre investments have since weighed on its shares.
The Democratic sweep in the US midterm elections has also raised questions over the future of the AI infrastructure expansion.
Nvidia's dominance in advanced AI chips remains substantial, underpinned by years of investment in adapting its GPUs for applications beyond gaming, regular product upgrades and purchasing power that smaller competitors struggle to match.
But its leadership is increasingly being challenged as rivals and major customers develop their own AI processors.
Competition is also intensifying in China, where US export restrictions prevent Nvidia from selling its most advanced products. The company has acknowledged that Chinese technology firms, including US-blacklisted Huawei Technologies, are making rapid progress in developing domestic AI chips.
Beyond its role as a chip supplier, Nvidia has also become an important financier of the AI ecosystem since 2024, investing in major technology ventures including OpenAI, Elon Musk's SpaceX and France's Mistral, as well as companies developing AI data centres.
The arrangement is mutually reinforcing, with Nvidia's investments helping finance infrastructure expansion that, in turn, generates further demand for its processors.
Its dominance also carries wider implications for financial markets because of its substantial weighting in the S&P 500, the benchmark index tracking major US-listed companies.
Nvidia accounted for less than one per cent of the index's total market value until mid-2020, but its weighting subsequently climbed to around eight per cent for much of the past two years, making it the index's largest constituent.
Following the latest revelations, its share fell below seven per cent, slipping behind Apple.
According to S&P Global, about US$20 trillion in assets are indexed to or benchmarked against the S&P 500, largely through retirement funds, mutual funds and exchange-traded funds.
This means a significant decline in Nvidia's valuation can have repercussions well beyond its own shareholders.
The latest controversy has also highlighted what investors call key-man risk, given Huang's central role in virtually every major corporate decision.
Known for his demanding management style, Huang reportedly has about 60 direct reports, significantly more than the typical technology chief executive. He expects them to send regular emails outlining their "top five things", which he reads and responds to at all hours.
His influence has become so deeply embedded in Nvidia's operations that his potential departure could create an unusually difficult succession challenge.
According to an employee who requested anonymity, the board wants Huang to remain as chief executive if possible, although an independent committee is investigating his actions.
With no designated successor, any forced or unexpected exit by the 63-year-old executive could leave the chipmaker particularly vulnerable at a critical juncture in the global AI race. - November 12, 2026
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