Nvidia shed $600 billion in market valuation this week. The selloff hammered the semiconductor giant from its perch as the world’s most valuable enterprise down to second place after Chief Executive Officer Jensen Huang admitted to an extramarital relationship with a woman accused by United States intelligence of espionage.
Yet the bombshell was documented half a year ago. In May, while Huang stepped onto the tarmac in Beijing aboard Air Force One alongside US President Donald Trump, 31-year-old short seller Christian Lamarco released a 40-page dossier targeting the chipmaker's overseas supply apparatus. Traders ignored it. The following session, Nvidia stock climbed to an all-time peak.
"This is not a bet against AI... We are short Nvidia for one reason: the company has a significant China problem," Lamarco wrote in the dossier released by his firm, Culper Research.
Tucked onto page three of Lamarco’s report was an explosive warning about Huang’s personal entanglements. The document flagged an "uncomfortably close relationship" between the Nvidia co-founder and Alice Huang, an employee at Singapore-based distributor Megaspeed—a critical operational partner handling Nvidia hardware across Southeast Asia.
Initial pushback was swift, met by repeated denials from corporate leadership. But the official stance crumbled this week when Huang formally conceded to the affair. The admission detonated across global trading desks after US intelligence authorities named Alice Huang as a Chinese intelligence asset.
The reaction on Wall Street was violent. Capital fled the stock in a multi-session liquidation that wiped out $600 billion in equity value.
Sometimes, people care about what you have to say. Sometimes, they don't. I guess in this case, they cared six months later. Everyone was just mocking us and now everyone is singing our praises." >
Christian Lamarco, Founder, Culper Research
| Metric / Milestone | Detail / Valuation Impact | Source Dossier Detail |
|---|---|---|
| Market Cap Erasure | $600 Billion | Culper dossier vindication selloff |
| Global Market Rank | Slipped to No. 2 globally | Down from world's most valuable firm |
| Expose Document Scope | 40 pages | Published May during presidential Beijing trip |
| Target Entity | Megaspeed (Singapore) | Nvidia's primary Southeast Asia distributor |
Lamarco’s route to triggering a historic drawdown in mega-cap tech began far outside Wall Street’s traditional institutional corridors. The son of an upstate New York pastor, Lamarco studied finance at Grove City College, a small Christian institution in western Pennsylvania.
Between 2017 and 2019, he cut his teeth at a long-short equity fund in Chicago before packing his savings and heading to Pittsburgh. Working solo out of the city's Shadyside district, he initially branded his research shop after the neighbourhood. He subsequently renamed the operation Culper Research—a direct tribute to the Culper Ring, the covert intelligence network that tracked British troop movements for George Washington nearly 250 years ago.
"Similarly, we take an exhaustive, investigative approach to investment research," Lamarco stated regarding the firm’s nomenclature.
Today, Culper operates out of a Brooklyn apartment with a lean, three-person analytical team dedicated to forensic short-selling. The group systematically scrutinises corporate balance sheets, operational misstatements, and governance blind spots to build short positions.
Market Context: Short-seller exposés targeting megacap technology leaders rarely yield governance confessions of this scale. The intersection of personal relationships, strategic semiconductor channels, and counter-espionage charges introduces unprecedented sovereign-risk discounts to Silicon Valley’s primary hardware pipeline.
Culper built its initial reputational ledger on volatile small-cap equities. In 2021, Lamarco issued a scathing report on telehealth provider LifeMD. Shares of the firm collapsed from $21 prior to publication to below $2 within twelve months.
Not all campaigns passed without legal warfare. Lamarco targeted window fabricator Tecnoglass, alleging corporate links to Colombia's Sinaloa drug cartel. Tecnoglass vigorously disputed the claims and launched a defamation lawsuit against the short seller; Lamarco’s legal defense team is currently petitioning the court to dismiss the complaint.
The firm did not shy away from eccentric promotional wagers either. Before initiating the Megaspeed investigation against Nvidia, Lamarco dangled a public $1 million bet in front of late-night television host Jimmy Fallon, offering to pay out if Fallon flew aboard an electric air taxi developed by Archer Aviation—a manufacturer Culper was actively shorting. Fallon never responded.
For Nvidia, founded in 1993 by Huang alongside Chris Malachowsky and Curtis Priem, the fallout shifts directly to regulatory exposure. Board members and institutional allocators now await further disclosures regarding the scope of Megaspeed’s hardware procurement channels, export compliance compliance reviews, and prospective executive oversight measures.
| Prior Short: LifeMD |
| Plunged from $21 to under $2 |
| Target collapsed within 12 months |
| Prior Short: Archer Aviation | $1 Million bet offered to Jimmy Fallon | Electric air taxi challenge went unanswered |
| Founding Year | 1993 | Co-founded by Jensen Huang, Chris Malachowsky, Curtis Priem |