QUADRIGA
QUADRIGA Fintech Solutions operated QuadrigaCX, a Canadian cryptocurrency exchange that collapsed into bankruptcy in 2019 after a major customer-asset shortfall and subsequent regulatory finding of fraud.
Last updated November 4, 2026
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Overview
Quadriga Fintech Solutions was a Canadian cryptocurrency business best known as the owner and operator of QuadrigaCX. The exchange became one of Canada's largest cryptocurrency trading platforms during the 2017 digital-asset boom, but ceased operations in early 2019 and entered bankruptcy after customers were unable to withdraw substantial amounts of cash and cryptocurrency. Gerald William Cotten and Michael Patryn founded Quadriga in Vancouver in November 2013. The business initially facilitated local bitcoin trades before launching an online exchange. In 2014 it installed a bitcoin ATM in Vancouver and processed approximately C$7.4 million in bitcoin exchange volume, according to accounts cited in the company's historical record. The company attempted to raise capital and pursue a listing on the Canadian Securities Exchange, but cancelled that plan in early 2016 after raising approximately C$850,000. By that period, the organization had few staff and limited operating infrastructure. Cotten eventually became its sole director after the other directors resigned. Quadriga's transaction volumes expanded sharply during the 2017 cryptocurrency speculation cycle. Approximately C$1.2 billion in bitcoin was exchanged on the platform that year. The resulting growth exposed weaknesses in the company's payment arrangements, accounting, custody, and governance. Quadriga relied heavily on outside payment processors rather than maintaining conventional banking relationships, and it reportedly lacked a formal accounting system. In June 2017, the company announced that cryptocurrency worth about US$14 million had been lost in connection with a smart-contract error involving ether. During 2018, falling cryptocurrency prices and payment-processing difficulties were followed by increasing customer complaints about delayed or unavailable withdrawals. A substantial amount held by Costodian, one of Quadriga's payment processors, was frozen by the Canadian Imperial Bank of Commerce after the bank said it could not determine ownership of the funds or contact the company. Quadriga also used other payment intermediaries, including WB21 and Crypto Capital. Customers were at times directed to unusual cash-collection arrangements rather than receiving ordinary bank transfers. Cotten died in India on 9 December 2018, according to contemporaneous filings and statements by his widow. Quadriga disclosed his death in January 2019 and said that he had been the only person with access to certain offline cryptocurrency wallets and critical company information. The exchange entered maintenance mode and stopped normal operations while customers reported that they could not access their balances. Court filings stated that approximately 115,000 affected customers were owed as much as C$250 million in cash and cryptocurrency, although the precise amount and composition of claims changed during the insolvency proceedings. Ernst & Young was appointed as monitor and later acted as trustee in bankruptcy. Investigations found that several supposed cold-wallet addresses were empty or did not contain the expected customer assets. In June 2020, the Ontario Securities Commission concluded that Quadriga had operated as a fraud and Ponzi scheme. The commission said Cotten had used aliases to create accounts with fictitious currency and crypto-asset balances and had traded against customers who believed they were dealing on a functioning exchange. The finding transformed Quadriga from a failed technology company into a major case study in cryptocurrency custody, governance, disclosure, and investor protection. The company received temporary creditor protection in February 2019 under Canada's Companies' Creditors Arrangement Act, but a viable reorganization was judged unlikely. Quadriga entered bankruptcy on 8 April 2019 under the Bankruptcy and Insolvency Act. In March 2023, Ernst & Young declared a first interim dividend for proven claims. The business itself is defunct, while the bankruptcy administration and distributions continued independently of the former exchange's operations.
History
Quadriga began in Vancouver in November 2013, founded by Gerald William Cotten and Michael Patryn. The founders initially arranged local bitcoin trades and soon launched an online exchange under the QuadrigaCX name. In January 2014 the business installed a bitcoin ATM in Vancouver. Its reported 2014 exchange volume was approximately C$7.4 million in bitcoin. The company sought outside capital and considered a listing on the Canadian Securities Exchange. It raised approximately C$850,000 but abandoned the listing plan in early 2016. Quadriga had a small staff and offices in Vancouver and Toronto in 2015, but financial resources were limited. By June 2015 the company reportedly faced a cash shortage. In 2016 Cotten became the sole director after the other directors resigned, and the operation subsequently relied on contractors and external service providers rather than a substantial internal organization. The 2017 cryptocurrency boom brought a dramatic increase in activity. About C$1.2 billion worth of bitcoin was exchanged through Quadriga that year. Higher commissions did not resolve the company's structural weaknesses. It depended on payment processors to move customer money, lacked robust accounting and treasury controls, and experienced custody problems. In June 2017 Quadriga announced the loss of ether valued at approximately US$14 million following a smart-contract error. As cryptocurrency markets weakened in 2018, customers increasingly reported delays in receiving Canadian-dollar withdrawals. In January 2018, approximately C$28 million held by Costodian was frozen by CIBC amid uncertainty about ownership and the bank's inability to contact Quadriga. The dispute went to court. Quadriga also used WB21 and Crypto Capital as payment processors. Its customer cash arrangements included a teller-window system in Laval, Quebec, where some customers reported arriving to find no staff or funds available. Cotten died in Jaipur, India, on 9 December 2018, according to his widow's affidavit and local documentation. The company later stated that he had died while doing volunteer work and that he had suffered a severe gastrointestinal illness. Cotten's death became central to the crisis because the company claimed that he alone controlled passwords to certain cold wallets and key operating information. A January 2019 filing stated that Quadriga had approximately 363,000 registered users and that up to C$250 million was owed to roughly 115,000 affected customers. Quadriga entered maintenance mode in January 2019 and applied for creditor protection. Ernst & Young's investigation found that five identified cold-wallet addresses were empty and that other wallets did not provide evidence of the expected customer reserves. Investigators also examined trading accounts on other exchanges. The company's weak records made it difficult to reconstruct customer balances and determine how funds had moved. The court granted temporary protection under the Companies' Creditors Arrangement Act on 5 February 2019 and appointed Ernst & Young as monitor. Protection was extended in March, but restructuring efforts did not produce a credible path to recovery. Quadriga entered bankruptcy on 8 April 2019. The Royal Canadian Mounted Police and FBI were reported to be investigating, while customer representatives asked authorities to exhume Cotten's body to verify his identity and cause of death. The Ontario Securities Commission published its investigation findings in June 2020. It determined that Quadriga had been a fraud and Ponzi scheme, stating that Cotten used aliases to create fictitious balances and traded with customer funds. The finding provided a regulatory explanation for the missing assets, although the bankruptcy process continued to identify, recover, and distribute what assets remained. In March 2023 the trustee announced a first interim dividend for proven claims. Quadriga's exchange operations have not resumed.
- 2023
First interim creditor dividend
[1]The bankruptcy trustee declared an initial distribution of approximately C$40 million to creditors with proven claims.
- 2020
Ontario Securities Commission investigation concludes
[2]The OSC characterized Quadriga's conduct as fraud and a Ponzi scheme involving fictitious account balances and customer losses.
- 2019
Creditor protection and bankruptcy
[1]Quadriga obtained temporary creditor protection in February and entered bankruptcy in April after reorganization appeared impractical.
- 2018
Withdrawal and payment problems intensify
[1]Customers reported delayed withdrawals, while funds held by a payment processor were frozen amid a dispute over ownership.
- 2018
Gerald Cotten dies
[1]Quadriga's founder and chief executive died in India on 9 December, creating an access crisis around wallets and company information.
- 2017
Trading volume surges during cryptocurrency boom
[1]Approximately C$1.2 billion in bitcoin was exchanged on Quadriga as cryptocurrency prices rose sharply.
- 2016
Planned public listing abandoned
[1]After raising approximately C$850,000, Quadriga cancelled plans to list on the Canadian Securities Exchange; Cotten later became sole director.
- 2014
Online exchange and Vancouver bitcoin ATM launched
[1]Quadriga moved from local trading into online exchange operations and installed a bitcoin ATM in Vancouver.
- 2013
Quadriga founded
[1]Gerald William Cotten and Michael Patryn founded Quadriga in Vancouver and began arranging bitcoin trades.
Products and positioning
A Canadian online cryptocurrency exchange positioned as a marketplace for buying, selling, depositing, and withdrawing digital assets. Its growth was driven by the 2017 cryptocurrency trading boom, but its operating model was ultimately discredited by severe custody, payment, accounting, and governance failures.
Cryptocurrency exchange · 2013
QuadrigaCX
QuadrigaCX was Quadriga's principal online marketplace for cryptocurrency trading. Customers used it to buy, sell, deposit, and withdraw bitcoin and other digital assets, often with Canadian-dollar settlement. The platform expanded rapidly during the 2017 cryptocurrency boom, but its reliance on external payment processors, inadequate accounting, and deficient custody controls became central to its collapse. The exchange ceased normal operations in early 2019 and is defunct.
Cryptocurrency access service · 2014
Quadriga bitcoin ATM
Quadriga installed a bitcoin ATM in Vancouver in January 2014, extending the company's service beyond online exchange activity. It was described in contemporary accounts as the second bitcoin ATM installed in Vancouver. No reliable source in the supplied material establishes whether the machine remained in operation after the company's early growth period.
Controversies
2020
Ontario Securities Commission fraud and Ponzi-scheme finding
The Ontario Securities Commission concluded that Quadriga was operated fraudulently. Its findings said Cotten created accounts under aliases, credited fictitious currency and crypto-asset balances, and traded against unsuspecting customers using customer funds.
2019
Customer-asset shortfall and inaccessible wallets
After Cotten's death, Quadriga said that substantial customer cryptocurrency was inaccessible because he controlled key wallet credentials. Ernst & Young found that identified cold-wallet addresses were empty or did not contain the expected reserves, while customers reported being unable to withdraw funds.
Brand decisions
2023
First interim distribution to proven creditorsOtherBackground
The trustee held recoveries from the bankruptcy estate and had completed enough claims work to make an initial distribution.
Action taken
Ernst & Young declared a first interim dividend of approximately C$40 million, calculated against proven claim values.
Aftermath
The distribution returned part of the recovered estate to creditors, while the insolvency administration remained separate from any operating exchange.
First interim dividend. Approximately C$40 million; C$0.13 per CAD of proven claim value (10 March 2023)
2019
Shift from creditor protection to bankruptcyOtherBackground
Quadriga's exchange had stopped functioning normally, and investigations raised serious doubts about the location and recoverability of customer assets.
Action taken
After temporary protection under the Companies' Creditors Arrangement Act, the company entered bankruptcy under the Bankruptcy and Insolvency Act on 8 April 2019.
Aftermath
Ernst & Young continued as trustee and pursued asset recovery, claim verification, and distributions to creditors rather than a business reorganization.
2017
Disclosure of ether loss following smart-contract errorOtherBackground
Quadriga reported a loss during a period of rapidly expanding cryptocurrency activity and rising transaction volumes.
Action taken
The company disclosed that ether worth approximately US$14 million had been lost because of a smart-contract error.
Aftermath
The incident became an early indication of the exchange's operational and custody weaknesses, although the full scale of the later customer-asset shortfall was not yet known.
Value of lost ether. Approximately US$14 million (June 2017)
2016
Abandonment of proposed Canadian Securities Exchange listingStrategyBackground
Quadriga had sought outside capital and explored a public listing after raising approximately C$850,000.
Action taken
The company cancelled its planned listing on the Canadian Securities Exchange and continued as a privately operated business.
Aftermath
Quadriga remained small and later operated with limited internal staffing, offices, banking infrastructure, and formal accounting controls.
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