{"investigation":{"slug":"stefan-qin","entity_name":"Stefan Qin","trust_score":2,"severity_base":null,"score_modifier":0,"confidence":0.97,"status":"published","content_type":"investigation","summary":"Stefan He Qin is an Australian national who founded and operated two cryptocurrency hedge funds — Virgil Sigma Fund LP and VQR Multistrategy Fund LP — between 2016 and 2020, fraudulently raising approximately $90 million from over 100 investors by fabricating returns and misrepresenting fund strategy. He siphoned investor assets for personal use, attempted to raid a second fund to cover losses, and was arrested after SEC intervention in December 2020. Qin pleaded guilty to federal securities fraud in February 2021 and was sentenced to 90 months in prison in September 2021, making his case one of the largest individual crypto fraud prosecutions prior to the FTX collapse.","sections":[{"content":"Stefan He Qin was born and raised in Canberra, Australia, and has described himself as a mathematics prodigy who experienced bullying and depression during his youth. He gained admission to the University of New South Wales (UNSW) through an entrepreneurial program involving a blockchain-based foreign exchange proposal, and also attended Minerva Schools, a San Francisco-based online institution, from August 2016 through late 2017. After completing an internship at a Chinese cryptocurrency firm where he worked on arbitrage platforms bridging Chinese and U.S. exchanges, Qin dropped out of university and relocated to New York City to establish Virgil Capital at approximately age 19 or 20. The fund's flagship vehicle, Virgil Sigma Fund LP, was incorporated in New York and purported to generate market-neutral returns by exploiting price discrepancies across approximately 39 global cryptocurrency exchanges using a proprietary algorithm called Tenjin. A February 2018 profile in the Wall Street Journal, which portrayed Qin as a \"bitcoin wunderkind,\" significantly boosted investor interest and contributed to rapid growth in assets under management.","heading":"Background and Fund Origins","sources":[{"url":"https://fortune.com/2021/02/14/crypto-fraud-virgil-capital-convicted/","name":"Fortune: A crypto kid had a $23,000-a-month condo. Then the feds came","type":"news_article","credibility":1},{"url":"https://ia.acs.org.au/article/2022/meet-the-aussie-whose-crypto-fraud-landed-him-in-prison.html","name":"Information Age (ACS): The Aussie whose crypto fraud landed him in prison","type":"news_article","credibility":2},{"url":"https://www.coindesk.com/policy/2021/02/05/crypto-hedge-fund-founder-pleads-guilty-to-90m-fraud","name":"CoinDesk: Crypto Hedge Fund Founder Pleads Guilty to $90M Fraud","type":"news_article","credibility":2}],"severity":"medium"},{"content":"From at least 2017 through late 2020, Qin engaged in an ongoing scheme to misappropriate assets from the Virgil Sigma Fund. According to prosecutors and SEC filings, Qin never deployed investor capital in the cryptocurrency arbitrage strategy he had promised; instead, he diverted funds for personal expenditures including rent on a $23,000-per-month penthouse apartment at 50 West in Manhattan's financial district, as well as undisclosed high-risk investments including initial coin offerings. Qin fabricated trading records and falsified spreadsheets purporting to show positions across dozens of cryptocurrency exchanges, deceiving investors about both fund performance and the location of their assets. Marketing materials allegedly promised returns of up to 10% per month, and Qin claimed the fund had delivered 500% returns in 2017. As of May 2020, the Sigma Fund had approximately 110 investors with account balances ranging from $100,000 to $16 million, nearly half of whom were U.S.-based. Beginning in mid-2020, investors seeking to redeem their holdings were rebuffed; Qin used false excuses and fabricated documentation to stall at least nine investors whose combined redemption requests totaled approximately $3.5 million, in some cases fraudulently convincing them to transfer their interests into the VQR Multistrategy Fund rather than receiving cash.","heading":"The Fraud Scheme","sources":[{"url":"https://www.justice.gov/usao-sdny/pr/founder-90-million-cryptocurrency-hedge-fund-charged-securities-fraud-and-pleads-guilty","name":"DOJ SDNY: Founder of $90 Million Cryptocurrency Hedge Fund Charged with Securities Fraud and Pleads Guilty","type":"regulatory","credibility":1},{"url":"https://www.sec.gov/newsroom/press-releases/2020-341","name":"SEC Press Release 2020-341: SEC Obtains Emergency Asset Freeze, Charges Crypto Fund Manager with Fraud","type":"regulatory","credibility":1},{"url":"https://www.sec.gov/files/litigation/complaints/2020/comp-pr2020-341.pdf","name":"SEC Complaint: SEC v. Stefan Qin et al (PDF)","type":"court_filing","credibility":1},{"url":"https://www.coindesk.com/markets/2020/12/24/crypto-hedge-fund-founder-stefan-qin-accused-of-fraud-by-sec","name":"CoinDesk: Crypto Hedge Fund Founder Stefan Qin Accused of Fraud by SEC","type":"news_article","credibility":2}],"severity":"critical"},{"content":"In addition to operating Virgil Sigma Fund, Qin controlled a second vehicle, VQR Multistrategy Fund LP, incorporated in the Cayman Islands, which had legitimate trading operations managed by a separate team. In December 2020, Qin approached VQR employees and attempted to withdraw approximately $1.7 million in investor assets from that fund, claiming he urgently needed the funds to repay loans from lenders he feared in China. VQR employees refused the withdrawal request. During those confrontations, Qin allegedly made incriminating admissions about having told investors \"white lies\" about the state of the Sigma Fund. This refusal prompted VQR personnel to alert authorities, catalyzing the SEC's emergency enforcement action. The SEC filed its complaint in the Southern District of New York on December 22, 2020, simultaneously obtaining an emergency asset freeze over approximately $25 million in digital assets under Qin's control, preventing further dissipation of funds.","heading":"Attempted Raid of VQR Fund and Collapse","sources":[{"url":"https://www.sec.gov/newsroom/press-releases/2020-341","name":"SEC Press Release 2020-341: SEC Obtains Emergency Asset Freeze","type":"regulatory","credibility":1},{"url":"https://www.financemagnates.com/cryptocurrency/news/sec-freezes-assets-of-bogus-crypt-fund-run-by-stefan-qin/","name":"Finance Magnates: SEC Freezes Assets of Bogus Crypto Fund Run by Stefan Qin","type":"news_article","credibility":2},{"url":"https://www.leaprate.com/cryptocurrency/scam/stefan-qin-and-virgil-capital-face-sec-fraud-charges-over-crypto-fund/","name":"LeapRate: Stefan Qin and Virgil Capital face SEC fraud charges over crypto fund","type":"news_article","credibility":2}],"severity":"critical"},{"content":"Federal prosecutors in the Southern District of New York charged Qin with one count of securities fraud. On February 4, 2021, Qin appeared before U.S. District Judge Valerie E. Caproni and pleaded guilty. At the time of his plea, he was 24 years old and believed to have been located in South Korea when the SEC initially filed its complaint. Prosecutors stated that the scheme defrauded more than 100 investors of approximately $90 million. On September 15, 2021, Judge Caproni sentenced Qin to 90 months (7.5 years) in federal prison — reportedly the statutory maximum for the single count charged — along with three years of supervised release. Qin was ordered to forfeit $54,793,532. U.S. Attorney Audrey Strauss described the scheme as one in which \"the whole house of cards has been revealed.\" Qin began serving his sentence at FCI Fort Dix in New Jersey.","heading":"Criminal Charges, Guilty Plea, and Sentencing","sources":[{"url":"https://www.justice.gov/usao-sdny/pr/founder-90-million-cryptocurrency-hedge-fund-sentenced-more-seven-years-prison","name":"DOJ SDNY: Founder of $90 Million Cryptocurrency Hedge Fund Sentenced to More Than Seven Years in Prison","type":"regulatory","credibility":1},{"url":"https://www.bloomberg.com/news/articles/2021-02-04/cryptocurrency-hedge-fund-founder-pleads-guilty-to-fraud","name":"Bloomberg: Virgil Capital Founder Admits $100 Million Crypto Fund Fraud","type":"news_article","credibility":1},{"url":"https://www.banklesstimes.com/news/2021/09/15/maximum-sentence-for-24-year-old-crypto-fraudster/","name":"BanklessTimes: Maximum Sentence For 24-year-old Crypto Fraudster","type":"news_article","credibility":2},{"url":"https://www.hedgeweek.com/founder-usd90m-cryptocurrency-hedge-fund-sentenced-more-seven-years-prison/","name":"Hedgeweek: Founder of USD90m cryptocurrency hedge fund sentenced to more than seven years","type":"news_article","credibility":2}],"severity":"critical"},{"content":"Parallel to the criminal proceedings, the SEC pursued a civil enforcement action against Qin and affiliated entities: Virgil Technologies LLC, Montgomery Technologies LLC, Virgil Quantitative Research LLC, Virgil Capital LLC, and VQR Partners LLC. On March 2, 2022, a final civil judgment was entered, permanently enjoining Qin from violating Section 17(a) of the Securities Act of 1933 and Section 10(b) of the Securities Exchange Act of 1934. The civil judgment ordered Qin to pay disgorgement of $36,352,028 plus prejudgment interest of $3,494,791. In a separate administrative proceeding on March 4, 2022, the SEC issued an order pursuant to Section 203(f) of the Investment Advisers Act of 1940, permanently barring Qin from association with any broker, dealer, investment adviser, municipal securities dealer, municipal advisor, transfer agent, or nationally recognized statistical rating organization.","heading":"SEC Civil Action and Permanent Bar","sources":[{"url":"https://www.sec.gov/enforcement-litigation/litigation-releases/lr-25342","name":"SEC Litigation Release LR-25342: SEC v. Stefan H. Qin, et al.","type":"regulatory","credibility":1},{"url":"https://www.sec.gov/files/litigation/admin/2022/ia-5974.pdf","name":"SEC Administrative Order IA-5974: Stefan Qin (PDF)","type":"regulatory","credibility":1},{"url":"https://www.sec.gov/enforcement-litigation/litigation-releases/lr-24997","name":"SEC Litigation Release LR-24997: Qin et al","type":"regulatory","credibility":1}],"severity":"critical"},{"content":"The Virgil Sigma case was among the largest individual cryptocurrency fraud prosecutions in the United States at the time of sentencing in September 2021, predating the November 2022 collapse of FTX. The case illustrated several recurring risk factors in the crypto fund space: unverified performance claims amplified by mainstream media coverage, absence of independent custody or auditing of assets, and the use of a second fund to disguise losses from a primary vehicle. The SEC's emergency asset freeze — executed within days of VQR employees refusing Qin's unauthorized withdrawal — was held up by regulators as a model for rapid civil intervention in crypto fraud. Qin's case also drew attention in Australia, where he was raised in Canberra, and prompted commentary on the regulatory gaps that allowed a 19-year-old with no registered investment adviser credentials to raise tens of millions of dollars from institutional and retail investors alike.","heading":"Historical Significance and Context","sources":[{"url":"https://www.canberratimes.com.au/story/7135738/how-a-canberran-conned-his-way-to-a-new-york-penthouse-in-114m-fraud/","name":"Canberra Times: Stefan Qin admits to almost $114 million cryptocurrency fraud, faces 20 years in US prison","type":"news_article","credibility":2},{"url":"https://cryptobriefing.com/crypto-hedge-fund-fraudster-qin-sentenced-to-seven-years-in-prison/","name":"CryptoBriefing: Crypto Hedge Fund Fraudster Sentenced to Seven Years in Prison","type":"news_article","credibility":2},{"url":"https://beincrypto.com/90-million-crypto-ponzi-schemester-sentenced-seven-years/","name":"BeInCrypto: $90 Million Crypto Ponzi Schemester Sentenced to Seven Years","type":"news_article","credibility":2}],"severity":"high"}],"timeline":[{"date":"2016","event":"Stefan Qin, approximately age 19, drops out of university and founds Virgil Capital in New York after an internship at a Chinese cryptocurrency firm.","source":"Fortune / Information Age","source_url":"https://fortune.com/2021/02/14/crypto-fraud-virgil-capital-convicted/","date_original":"2016-01-01"},{"date":"2017","event":"Virgil Sigma Fund LP begins raising investor capital. Qin later claims the fund returned 500% during 2017, though prosecutors allege no legitimate arbitrage strategy was ever deployed.","source":"DOJ SDNY / CoinDesk","source_url":"https://www.coindesk.com/policy/2021/02/05/crypto-hedge-fund-founder-pleads-guilty-to-90m-fraud","date_original":"2017-01-01"},{"date":"2018-02","event":"Wall Street Journal publishes a profile of Qin as a cryptocurrency prodigy, significantly increasing investor interest and inflows to Virgil Sigma.","source":"Fortune","source_url":"https://fortune.com/2021/02/14/crypto-fraud-virgil-capital-convicted/","date_original":"2018-02-01"},{"date":"2019-09","event":"Qin signs a lease for a $23,000-per-month penthouse apartment at 50 West in Manhattan, funded by misappropriated investor capital.","source":"Fortune","source_url":"https://fortune.com/2021/02/14/crypto-fraud-virgil-capital-convicted/","date_original":"2019-09-01"},{"date":"2019","event":"Qin fabricates trading records and alters spreadsheets purporting to show positions across approximately 39 cryptocurrency exchanges.","source":"SEC Complaint","source_url":"https://www.sec.gov/files/litigation/complaints/2020/comp-pr2020-341.pdf","date_original":"2019-01-01"},{"date":"2020-05","event":"Sigma Fund records reflect approximately 110 investors with balances ranging from $100,000 to $16 million. Mid-2020 redemption requests begin being blocked.","source":"SEC Complaint","source_url":"https://www.sec.gov/files/litigation/complaints/2020/comp-pr2020-341.pdf","date_original":"2020-05-01"},{"date":"2020-12","event":"Qin approaches VQR employees seeking to withdraw $1.7 million in investor assets to repay alleged Chinese lenders; employees refuse and report the approach to authorities.","source":"SEC Press Release 2020-341","source_url":"https://www.sec.gov/newsroom/press-releases/2020-341","date_original":"2020-12-01"},{"date":"2020-12-22","event":"SEC files civil complaint in SDNY against Qin and five affiliated entities; court grants emergency asset freeze over approximately $25 million in digital assets.","source":"SEC Press Release 2020-341","source_url":"https://www.sec.gov/newsroom/press-releases/2020-341"},{"date":"2021-02-04","event":"Qin pleads guilty to one count of securities fraud before U.S. District Judge Valerie E. Caproni in the Southern District of New York.","source":"DOJ SDNY","source_url":"https://www.justice.gov/usao-sdny/pr/founder-90-million-cryptocurrency-hedge-fund-charged-securities-fraud-and-pleads-guilty"},{"date":"2021-09-15","event":"Judge Caproni sentences Qin to 90 months (7.5 years) in federal prison, three years of supervised release, and orders forfeiture of $54,793,532.","source":"DOJ SDNY","source_url":"https://www.justice.gov/usao-sdny/pr/founder-90-million-cryptocurrency-hedge-fund-sentenced-more-seven-years-prison"},{"date":"2022-03-02","event":"Final civil judgment entered against Qin: permanently enjoined from securities fraud violations; ordered to pay $36,352,028 in disgorgement plus $3,494,791 in prejudgment interest.","source":"SEC Litigation Release LR-25342","source_url":"https://www.sec.gov/enforcement-litigation/litigation-releases/lr-25342"},{"date":"2022-03-04","event":"SEC issues administrative order permanently barring Qin from association with any broker, dealer, investment adviser, or related financial entity under Section 203(f) of the Investment Advisers Act.","source":"SEC Administrative Order IA-5974","source_url":"https://www.sec.gov/files/litigation/admin/2022/ia-5974.pdf"}],"sources_used":[{"url":"https://www.justice.gov/usao-sdny/pr/founder-90-million-cryptocurrency-hedge-fund-sentenced-more-seven-years-prison","name":"DOJ SDNY: Founder of $90 Million Cryptocurrency Hedge Fund Sentenced to More Than Seven Years in Prison","type":"regulatory","archive_url":"http://web.archive.org/web/20260524022122/https://www.justice.gov/usao-sdny/pr/founder-90-million-cryptocurrency-hedge-fund-sentenced-more-seven-years-prison","credibility":1,"archive_timestamp":"2026-05-24T02:21:22+00:00"},{"url":"https://www.justice.gov/usao-sdny/pr/founder-90-million-cryptocurrency-hedge-fund-charged-securities-fraud-and-pleads-guilty","name":"DOJ SDNY: Founder of $90 Million Cryptocurrency Hedge Fund Charged with Securities Fraud and Pleads Guilty","type":"regulatory","archive_url":"http://web.archive.org/web/20260524040056/https://www.justice.gov/usao-sdny/pr/founder-90-million-cryptocurrency-hedge-fund-charged-securities-fraud-and-pleads-guilty","credibility":1,"archive_timestamp":"2026-05-24T04:00:56+00:00"},{"url":"https://www.sec.gov/newsroom/press-releases/2020-341","name":"SEC Press Release 2020-341: SEC Obtains Emergency Asset Freeze, Charges Crypto Fund Manager with Fraud","type":"regulatory","archive_url":"http://web.archive.org/web/20260410163504/https://www.sec.gov/newsroom/press-releases/2020-341","credibility":1,"archive_timestamp":"2026-04-10T16:35:04+00:00"},{"url":"https://www.sec.gov/files/litigation/complaints/2020/comp-pr2020-341.pdf","name":"SEC Complaint: SEC v. 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