The Tether Truthers: Infinite FUD Machine

On 19 October 2021 Nathan Anderson, the short seller whose firm Hindenburg Research had helped bring down the electric truck maker Nikola, offered $1 million to anyone who could tell him what was really backing Tether. He had no report and no position in the token. He had a question that much of the crypto industry had been asking for four years, and that Tether had mostly answered with press releases. Tether called the bounty a "cynical" stunt.

Tether issues USDT, a stablecoin: a token that lives on a blockchain and is meant to be worth exactly one US dollar, like a casino chip that can always be cashed back at the cage for a dollar. Traders use it to park money between bets without going back to a bank. Holding the price at one dollar is called the peg. Tether says every token is matched by a dollar, or something nearly as safe, held in reserve, the way a money market fund says its units are backed by short-term government debt.

The attacks on that promise, from bloggers, academics, hedge funds and regulators, earned their own slang: FUD, short for fear, uncertainty and doubt, the label the crypto industry pins on any bad news it would rather not believe. Some of the Tether FUD turned out to be true. None of it ended the way the critics expected. In mid-October 2026 there were about $183 billion of USDT in circulation.

What the critics got right

Twice, officials looked inside. Twice they found the public claims had been false.

In April 2019 New York Attorney General Letitia James went to court alleging that Bitfinex, a crypto exchange run by the same managers as Tether, had lost about $850 million it had left with Crypto Capital, a Panama-based payment processor, and had quietly plugged the hole with at least $700 million of Tether's reserves. Bitfinex said the filing was "written in bad faith". In February 2021 the two companies settled: $18.5 million paid to New York, a ban on dealing with New Yorkers, and quarterly reports on what backed the tokens. The Attorney General's office said that from mid-2017 Tether at times had no bank account and held no reserves for its tokens at a dollar each, and that on 2 November 2018, one day after its balances were checked, it moved hundreds of millions of dollars back to Bitfinex.

In October 2021 the Commodity Futures Trading Commission (CFTC), the US regulator for futures markets, fined Tether $41 million and Bitfinex $1.5 million. In a 26-month sample from 2016 to 2018, the CFTC found that Tether had held enough real money to back every token on only 27.6% of days. Some of the "reserves" were IOUs, cash held by unregulated third parties, or money mixed in with Bitfinex's own.

Academics added a heavier charge. A 2020 paper in the Journal of Finance by John Griffin of the University of Texas and Amin Shams of Ohio State argued that new Tether tokens, pushed into the market at the right moments in 2017, helped prop up the price of bitcoin. Tether rejected the findings.

The bets that never paid

Short selling means borrowing a share, selling it, and hoping to buy it back cheaper later. Against a stablecoin the bet is simpler: that the dollar chip will one day cash out for less than a dollar. In 2021 Tether's own reports showed only about a tenth of its reserves in cash and bank deposits and roughly half, more than $30 billion, in commercial paper, short-term IOUs issued by companies. In March 2022 Bloomberg reported that Fir Tree Partners, a $4 billion New York hedge fund, was betting against USDT on the view that some of that corporate debt was tied to struggling Chinese property developers. Tether said it held no paper from Evergrande, the biggest of them.

The closest the doubters came was May 2022. TerraUSD, a rival stablecoin backed by nothing but its own sister token, collapsed, and holders of every stablecoin ran for the exit. On 12 May USDT traded as low as about 95 cents. Tether paid out more than $3 billion in a day and about $10 billion over the following fortnight, and the price was back at a dollar by the next day. No fund that bet on a collapse has said in public that it made money.

Tether then swapped its commercial paper for US Treasury bills, short-term loans to the US government, much of it held at Cantor Fitzgerald, the Wall Street firm run by Howard Lutnick, who became Commerce Secretary in 2025.

From outlaw to audited

Rising interest rates turned the critics' target into one of the most profitable companies in finance. A pile of Treasury bills earning 4% to 5%, funded by customers who are paid nothing, is a very good business. Tether reported profit of more than $10 billion for 2025, backed by an attestation from the accounting firm BDO: a check of balances on a single day, not a full audit.

The doubts did not vanish. In November 2025 S&P Global cut its score for USDT's ability to hold its peg to "5 (weak)", the lowest on its scale, pointing to bitcoin, gold and loans among the reserves and "persistent gaps in disclosure". Tether said S&P was using a legacy framework.

Washington, meanwhile, wrote the rules the critics had demanded. The GENIUS Act, signed by President Donald Trump on 18 July 2025, requires stablecoins sold in the US to hold a dollar of cash or Treasuries for every token and to publish monthly reports. Instead of rebuilding USDT, Tether launched a second coin, USAT, on 27 January 2026, issued by Anchorage Digital Bank and run by Bo Hines, a former White House crypto adviser. By March 2026 USAT was worth about $27 million.

On 24 March 2026 Tether said it had hired a Big Four accounting firm for its first full audit. On 13 August it announced the result: KPMG had audited the issuing company's 2025 accounts and given a clean opinion, with reserves exceeding what Tether owed token holders by $6.8 billion at the end of 2025. Tether did not publish the audited statements, and its own quarterly figures showed the cushion had shrunk to about $4.1 billion by the end of June 2026.

The score

USDT is now more than twice the size of USDC, the roughly $73 billion stablecoin issued by its US rival Circle. The critics were right that Tether misled people about its reserves for years, and two regulators said so in writing. They were wrong about what would happen next. Wall Street has an old line that the market can stay irrational longer than a short seller can stay solvent. Tether is that line with a ticker symbol.