Chute spectaculaire : 3,7 milliards de dollars évaporés en juillet après l’effondrement de 7 actions chinoises cotées aux États-Unis

Le mois de juillet a été brutal pour les investisseurs. Sept microcaps chinoises cotées aux États-Unis ont dévissé de plus de 80%, emportant avec elles 3,7 milliards de dollars de valeur marchande.

Ces titres, autrefois chéris par les traders en quête de rendements rapides, ont transformé les rêves de gains en cauchemars comptables. Une leçon de plus sur les dangers des paris spéculatifs—mais qui écoutera, tant que le prochain 'moonshot' fait miroiter des fortunes ?

Victims dumped after fake brokers hijack chats

The FBI said complaints involving “ramp and dump stock fraud” tripled year-over-year. Investigators say scammers are now posing as legit firms or analysts to build trust on platforms like Facebook and WhatsApp, before dropping links to groups that pitch cheap Chinese stocks as can’t-miss bets.

This has been tied to the surge in Chinese IPOs on US exchanges, especially in the microcap market, which has been flooded since last year by small firms from China and Hong Kong.

Among those hit was tia Castagno, a coach based in London, who lost all her savings after she joined a WhatsApp group following a Facebook ad. The group’s admins claimed they were a US investment firm. Tia was told to buy Ostin Technology, which then crashed. “There’s a feeling of emptiness in my stomach, and shame,” she said. “I keep questioning my judgment and remembering how I felt when the rug was pulled from under my feet.”

Ryan Sweetnam, a lawyer at Cel Solicitors in the UK, said he’s representing “more than a hundred clients” who fell into similar traps involving Chinese penny stocks. One of those clients, a European investor, told the Financial Times they lost over $100,000 on Pheton Holdings.

That investor joined a WhatsApp group that used a fake endorsement from a well-known US TV personality. “They asked if I was AI-bot early on… a good ruse. It looked like a kosher operation,” they said. “I almost fell off my chair [when the stock was dumped].”

Noushin Mirshokraei, who owns a food and drinks business in Italy, said she lost $70,000 after being convinced on WhatsApp to buy Ostin ahead of a supposed partnership with a big US firm. “All the information that was given to us on WhatsApp groups was from fake participants,” she said. “The only real PEOPLE in there were the ones being manipulated.”

Warnings ignored as price crashes continue

Matthew Michel, head of InvestorLink, has been raising the alarm for months. He said his team has flagged suspicious activity around microcap stocks every week for the past seven months. On June 9, Michel warned about Ostin, two weeks before the stock lost 94% in a single day. He also spotted red flags on Pheton three weeks before it tanked 95% in one session.

One Wall Street trading firm, which uses InvestorLink’s tools and asked not to be named, has also reported concerns to Nasdaq and the SEC, saying some of these stocks were showing signs of manipulation.

Michel’s breakdown of Ostin’s moves showed 12 Reddit accounts promoting the stock in the same two-hour window. He said three of the users were geolocated to Russia and Iran, which matches what his team has seen in other stock scams.

Meta, which owns Facebook and WhatsApp, said it doesn’t want scam content on its platforms and claimed it’s working on better tools to catch it, including on-platform warnings, tech upgrades, and partnerships with banks and governments.

On June 17, Regencell Bioscience, a Chinese herbal medicine firm, saw its shares jump 60,000% for the year, hitting a market cap of $38 billion, higher than Walgreens or Jefferies. That’s despite the company that reported a $4.4 million loss in 2024 when its stock dropped 83%. The pattern follows the same playbook: hype, spike, crash.

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