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Founded 2014
Headquarters Wilmington, Delaware
Key People Tristan D'Agosta, founder and CEO
Employees 1-10
Twitter @poloniex
Facebook poloniex
Website Poloniex home
Releases Company News

Poloniex is one of the larger American cryptocurrency-to-cryptocurrency trading platforms. It was launched in January 2014. According to CryptoCompare, which among other things publishes a ranking of cryptocurrency trading platforms, Poloniex earned a score of AA for trading platform quality, placing it second among the 211 platforms it reviewed worldwide in June 2019.[1]


Poloniex was hacked two months after its launch, resulting in a loss of 12.3 percent of its customers' bitcoin holdings.[2]

Circle Internet Financial, Ltd. acquired Poloniex on February 26, 2018, reportedly for $400 million.[3] In a blog post regarding the acquisition, Circle co-founders Sean Neville and Jeremy Allaire said that in addition to leveraging Poloniex's geographic reach into 100 different countries, they looked "...forward to scaling Poloniex up and out through market expansion and localization, increasing token listings where possible and appropriate, and exploring the fiat USD, EUR, and GBP connectivity that Circle already brings to its compliant Pay, Trade, and Invest products."[4]


Listing more than 100 cryptocurrency-to-cryptocurrency pairs, Poloniex was the 35th largest cryptocurrency trading platform globally by volume in late September 2018 according to CoinMarketCap, an online data aggregator and reporting service.[5] By late December 2019, however, Poloniex's market share had declined and its ranking was 75th among cryptocurrency trading platforms.[6] According to Circle, Poloniex's parent, by July 2019 70% of Poloniex's customers were based outside of the United States.[7]

Poloniex was one of 13 cryptocurrency exchanges doing business in New York State that were requested by the Attorney General's Virtual Markets Integrity Initiative to provide detailed information about its operations and policies and was one of nine that responded. In its response Poloniex indicated, among other things, that it provides margin trading on its platform.[8]

In October 2018, Poloniex announced it had removed margin trading features in order to comply with U.S. federal laws, which it did not specify.[9] In May 2019, the exchange announced that it would be disabling trading for nine cryptocurrencies due to "regulatory uncertainty." The cryptos that were disabled were ARDR, BCN, DCR, GAME, GAS, LSK, NXT, OMNI, and REP.[10]

Having received a Digital Assets Business Act license from Bermuda, Circle announced in a July 22, 2019, blog post that Poloniex would move the business and operations supporting non-U.S. residents to an office in Bermuda. The company said that its new Bermuda license covers the operation of payment services, custody, exchange, trading and other financial services for digital assets. The company also indicated that it would expand its list of tradable instruments for non-U.S. persons.[11]

Circle announced on October 18, 2019, that it was spinning out Poloniex to an "Asian-backed" investment group, Polo Digital Assets, Ltd.[12] After repeatedly denying being involved in the investment, TRON's founder, Justin Sun, told a Poloniex-Tron joint conference, that he had participated.[13] Poloniex halted trading by U.S. residents at the beginning of November 2019.[14]

In a blog post dated December 19, Poloniex announced a new customer type, Level 1, which does not require anti-money laundering procedures to be followed for withdrawals of up to 10,000 worth of cryptocurrency or fiat money.[15]

Poloniex socializes to cover margin loss

On May 26, 2019, an altcoin being traded on Poloniex, CLAM, experienced a severe price crash. As a result, those trading CLAM defaulted, causing a huge loss for bitcoin margin lenders. Poloniex attempted to rectify the situation by socializing (borrowing from customer funds) approximately 1,800 BTC from active BTC margin loans. A representative of the exchange said that it spread the loss across BTC lenders, including those with BTC loans that were not active during the crash, because "all BTC loans on Poloniex are lent in a common pool that is shared across all markets and borrowers, but we want to emphasize that we are pursuing defaulted borrowers to get them to repay the BTC they owe to lenders and exploring other ways to defray losses." The representative also said that as the exchange recovers funds, it "will return them to affected lenders.”[16]

On June 14, Poloniex distributed a total of 180 bitcoins to 10 percent of the users affected by the crash. In August, Poloniex began crediting trading fees in bitcoin for lenders who lost funds in the CLAM crash. The exchange said in a blog post that fees would be covered for affected accounts back from June 6 until they are fully repaid.[17][18]

In March 2020, Poloniex released a statement to its users affected by the CLAM crash, saying that it had deposited "a payment of up to 0.0047 BTC to every impacted customer who has not been fully repaid yet." The statement declared that those affected by the crash whose losses were below that amount had been fully repaid, and that those who still had not been fully repaid would have trading fees altered to help recoup the rest of their losses. The statement acknowledged that not everyone may be satisfied with the offer, but that Poloniex would continue to try to repay its customers until everyone was taken care of. Some traders expressed outrage, implying that Poloniex disbursing bitcoin to its customers after its price had fallen (due to the coronavirus crash of March 2020) was a cheap way to repay those affected by the crash.[19]

TRON's "hostile takeover" of Steemit

In February 2020, Steemit entered into a "strategic partnership" with TRON, resulting in TRON gaining considerable influence over the STEEM blockchain's governance. Witnesses within the Steemit community, concerned that TRON's executives and administrators (including Justin Sun) might have gained too much power over the Steem network, implemented a soft fork (Soft Fork 0.22.2) on February 24, deactivating the voting power of a large number of STEEM tokens owned by TRON and Steemit. On March 2, 2020, Huobi, Binance, and Poloniex allegedly used their collective voting power from STEEM tokens held by the exchanges to undo the soft fork, nullifying the voting power of the Witnesses responsible for the original soft fork in the process. The STEEM Team, which apparently consisted of both Steemit and TRON employees, issued a statement on Steemit's website that called Soft Fork 0.22.2 "criminal and illegal," arguing that the soft fork reversal was necessary in order to keep the "maliciously structured" fork from freezing "a handful of very targeted accounts and taking away their rights and possession to their owned asset." The post said the Witnesses threatened to cause a hard fork that would have nullified existing STEEM tokens, which was "very much against every aspect of the original purpose of decentralization and the core value of the Steem blockchain and community." The post said that the soft fork reversal was necessary to "correct the hostile behavior led by a small group of people," and that Steemit would use its voting rights to "resume the order of the community" for the next 4-6 weeks, after which it would return power to the community.

This caused an uproar in the crypto world, with many accusing Sun of "buying" control of the network for the sake of his own interests. Vitalik Buterin tweeted that it seemed like "the first big instance of a 'de facto bribe attack' on coin voting (the bribe being exchs giving holders convenience and taking their votes)." Changpeng Zhao tweeted that Binance would withdraw its voting stake given the community's response to the event. Multiple app developers announced that they were removing their apps from the Steem blockchain in response to the event.[20][21][22]

A few days later, Zhao tweeted an apology to the Steemit community, saying that he thought the TRON takeover was a "regular fork/upgrade." He also said that if the issue was not resolved soon, it would damage the credibility of STEEM, as well as its price.[23][24]

Products and Services

Poloniex offers over 100 BTC markets for trading. Users are required to be 18 years or older. Poloniex has no deposit or withdrawal fees, but charges a flat rate of 0.2 percent for all transactions.[25]

Digital Asset Margin Trading

Poloniex offers margin trading for non-U.S. customers. To accomplish this, Poloniex's traders, as well as Poloniex itself, lend cryptocurrency at an interest rate for borrowers. These loans come from a common pool of digital assets which are shared across all markets and borrowers.[26]

Poloniex de-lists 23 trading pairs

Citing low trade volume, Poloniex announced on August 15, 2019 that it would be de-listing 23 trading pairs on its platform the following day.


Key People

Tristan D'Agosta - Founder and CEO


  1. Exchanges. CryptoCompare.
  2. Poloniex Loses 12.3% of its Bitcoins in Latest Bitcoin Exchange Hack. CoinDesk.
  3. Goldman-Backed Circle Agrees to Buy Crypto Exchange Poloniex. Bloomberg.
  4. Circle Acquires Poloniex. Circle.
  5. Poloniex. CoinMarketCap.
  6. Poloniex. CoinMarketCap.
  7. Circle Moves Exchange Operations Offshore With New Bermuda Office. CoinDesk.
  8. Virtual Markets Integrity Initiative Report. Attorney General of the State of New York.
  9. Crypto Exchange Poloniex Removes Margin and Lending Products for US Users. Cointelegraph.
  10. Poloniex to disable nine cryptocurrencies in the US due to regulatory uncertainty. The Block.
  11. Circle Expands International Offerings with New Bermuda Operations and Digital Assets Business License. Circle.
  12. Poloniex to Spin Out of Circle. Circle.
  13. Despite Denials, Tron Founder Confirms Investment in Poloniex Crypto Exchange. CoinDesk.
  14. Trading for US Poloniex Customers Has Ended. Circle.
  15. Poloniex exchange drops KYC for withdrawals of up to $10,000 per day. The Block Crypto.
  16. Poloniex could leave itself open to legal threats by socializing 1,800 BTC loss. The Block.
  17. Investors Who Lost Big in Poloniex Flash Crash Receive Bitcoin Refunds. Coindesk.
  18. Lending Pool Loss Update #2: Trading Fees are Now Being Credited to Impacted Lenders, More Actions to Follow to Fully Repay Customers. Medium.
  19. New Poloniex exec team seeks to make things right with traders who lost money from $CLAM liquidation. The Block.
  20. Tron takeover? Steem community in uproar as crypto exchanges back reversal of blockchain governance soft fork. The Block.
  21. Why Crypto Should Care About Justin Sun’s Steem Drama. Coindesk.
  22. An Open Letter to the Community - HF22.5. Steemit.
  23. CZ Binance. Twitter.
  24. CZ Binance. Twitter.
  25. Poloniex. Crunchbase.
  26. Poloniex could leave itself open to legal threats by socializing 1,800 BTC loss. The Block.
  27. Crypto Exchange Poloniex to Delist 23 Trading Pairs Due to Low Volume. Cointelegraph.