“Tether Tokens are not Fiat themselves.” The sentence sits in the terms Tether last revised in February 2026, a few lines below the promise that every token in circulation is backed by reserves equal to its stated value.
To someone paying for web hosting or a software subscription in USDT, the distinction never shows. The token spends as a dollar because the next holder takes it as one. An economic slowdown doesn’t change the figure on an invoice. It changes something further back: how many holders might want a real dollar at once, and which door they would have to use.
That door is easiest to see where a stablecoin does a second job, as collateral, and event-contract venues make the cleanest case. Everything below describes mechanisms. None of it is a view on holding or trading any token.
Event Contracts Are Fully Funded, So The Collateral Carries The Risk
A standard binary event contract, bought outright, never calls for more margin. Between them, the holders of yes and no have paid in the whole dollar by the time the trade clears. What separates one venue from the next is not the contract, which settles at a dollar or nothing across the prediction markets now operating in the US, but the form that dollar takes while it waits.
Legal Sports Report’s platform-by-platform write-ups draw the line in the same place, between venues whose trades clear through a CFTC-registered clearinghouse and the crypto-native design of Polymarket’s international venue. On the first kind, the dollar is a customer balance held under segregation rules. Fanatics Markets, for one, offers its contracts through a CFTC-registered futures commission merchant.
On the second kind, the dollar is a token locked in a smart contract. Full funding solves the credit problem either way, since nobody on the losing side can fail to pay when the loser’s money is already in the pot. What it can’t solve is exposure to the pot. A contract settled in bank dollars carries the risk of the firm holding them. One settled in a token carries the risk of that token, plus every step between it and a dollar.
A separate fight, still unresolved, concerns what the contract is: a swap under federal law or a wager under state law. The CFTC claims exclusive jurisdiction and has sued states to defend it. This year a federal judge in Ohio found Kalshi’s products to be gambling under state law, while a federal judge in Arizona permanently dismissed that state’s criminal charges and found the agency’s jurisdiction exclusive.
Over the summer, a Washington state court enjoined event contracts, and a federal judge halted Minnesota’s ban before it took effect. The same contract can be treated as a federally supervised derivative in one state and as gambling under state law in the next.
Polymarket’s Dollar Is A Wrapper With One Exit
Polymarket’s international venue shows the token version up close. Its developer documentation calls the collateral pUSD, a token on the Polygon network that “represents a USDC claim,” and gives it a one-line assurance: “No algorithmic peg, no fractional reserve.” The wrapper took over from bridged USDC in late April 2026, when the venue moved to new exchange contracts.
That assurance is real, and it is narrow. It says every pUSD has a USDC behind it. It says nothing about what a USDC is worth on the day a market resolves, because a winning share pays out in pUSD, not in dollars. A contract asking whether USDC will hold its peg would pay its winners in the very token whose peg it asks about, so the payout takes the same discount it was bought to cover.
The exit has limits too. The documentation says pUSD is designed to work within Polymarket, with no current plans to list it on outside exchanges, which leaves Polymarket’s own contracts and withdrawal tools as the route back to USDC. Both the wrap and unwrap functions revert while an administrator has them paused. A pause switch is ordinary engineering, a brake for when something breaks. It also means the route from a winning share to a dollar runs through a switch the operator holds.
Par Is Real, And Six Firms A Month Collected It
The redemption door has been tested hard before. As terraUSD collapsed in May 2022, USDT slid to 95 cents on a Thursday and was back at a dollar the next day, after more than $3 billion of tokens left circulation in a single day, CNBC reported. Within two weeks, circulating supply fell from a record $84.2 billion to about $73.3 billion, on CoinGecko data.
Tether paid, and the peg came back. Who stands at that window in ordinary months gets less attention. A 2025 NBER woraking paper by Yiming Ma, Yao Zeng and Anthony Lee Zhang, on data running to March 2022, found that USDT averaged only six arbitrageurs redeeming directly each month on Ethereum, the largest handling 66% of redemptions. USDC averaged 521.
Everyone else leaves by selling, to those firms or to each other, at a market price. The authors describe the concentration as a tradeoff. Efficient arbitrage keeps the traded price closer to a dollar, but it amplifies run risk, since a holder who can sell without moving the price has less reason to wait. Their counts come from Ethereum alone, and USDT also circulates on other chains.
Tether’s terms describe the gate from the issuer’s side. Redemption is open to verified customers, subject to minimum amounts, and the right is “a contractual right personal to you.” For a checkout balance of a few hundred dollars, the par promise exists and belongs to someone else. The holder’s own exit is whatever the market pays that day.
A Clean Audit And A Weak Rating Measure Different Things
Reserves are what the promise rests on, and the past year produced two verdicts on them that read like opposites. In August, Tether announced that KPMG had issued an unqualified opinion on its 2025 financial statements, its first full audit, with reserves exceeding liabilities by $6.814 billion at year-end. KPMG physically counted the gold bars, the company said.
Nearly nine months earlier, S&P Global Ratings had cut its assessment of USDT’s ability to hold the peg to 5 (weak), its lowest score, from 4 (constrained), citing a rise in higher-risk assets in the reserve. Bitcoin made up about 5.6% of the backing, against a 3.9% overcollateralization margin, CoinDesk reported. Tether rejected the assessment as a legacy framework that fails to capture digitally native money.
Both can be right, because they answer different questions. An audit asks whether a year’s statements are fairly presented. The quarterly attestation BDO prepares checks a reserves report on a single date. The latest put assets at about $187.75 billion against liabilities of about $183.64 billion at the end of June, and Tether’s transparency page adds that funds held by other group companies sit outside those reserves.
A rating asks the question neither of those is built for: what happens to the peg if the riskier assets fall. The terms let reserves include “loan receivables and other assets from Affiliates,” and gold, which Tether kept adding to, fell 14.1% in the second quarter by its own account. The surplus moved from that audited year-end figure to about $4.11 billion at the end of June. Neither the audit nor the attestation is built to show how fast those reserves could be sold on a Saturday.
Binance Marked USDe At 65 Cents While Aave Held It At A Dollar
The price a venue uses to value collateral can matter as much as the reserves. When a tariff announcement set off more than $19 billion of liquidations on a Friday in October 2025, Ethena’s USDe, a synthetic dollar backed by hedged crypto positions, fell to 65 cents on Binance before regaining parity, CoinDesk reported.
Ethena said minting and redemption kept working throughout. Binance and Bybit marked the token close to live trading prices. Aave, a lending protocol, had it hardcoded at $1, which spared it some of the immediate damage. Same token, same hour, and the losses depended on which price each venue had chosen.
Binance later paid $283 million in compensation, covering futures, margin and loan users whose USDe, BNSOL or WBETH collateral was hit between 21:36 and 22:16 UTC, according to The Block. It also added redemption prices to its index weights and set a soft floor for USDe.
The sharper detail sits in a notice Binance had posted that Monday. Its margin desk planned to price two of those tokens off their staking conversion ratios instead of its own spot price, “to minimise the risk of depegging.” The change was due to take effect the following Tuesday. A fully funded event contract has no liquidation engine, so this failure can’t strike halfway through a trade. It shows up at the end instead, in the unit the winner is paid in.
Cash Collateral Fails At The Intermediary Instead
None of this makes bank dollars risk-free. In the last week of October 2011, MF Global, a registered futures commission merchant, used customers’ segregated funds to support its own operations, according to the CFTC’s later complaint. Customers lost $1.212 billion, and the final distributions to make them whole began only in 2014. Cash fails through whoever holds it, and its protections are segregation rules and the courts. Until recently, US derivatives rules barely let a token through the door at all.
A CFTC staff advisory from 2020 had required futures brokers to value virtual-currency collateral at zero in their segregation math.
The agency withdrew it in December 2025 and opened a pilot under which, for an initial three months, brokers could accept only bitcoin, ether and USDC as margin, at haircuts the clearinghouses set, and had to report holdings weekly, as a National Law Review summary sets out.
Crypto.com’s chief executive, Kris Marszalek, said the change would let its CFTC-regulated clearinghouse use tokenized collateral for its “predictions market products.” The two models are converging, and the terms of entry are telling. A bank dollar counts as a dollar. A token dollar counts at whatever haircut the clearinghouse sets.
A Slowdown Would Reach The Redemption Window Before The Checkout
A slowdown would not arrive at the checkout first. It would arrive at the redemption window, as holders who need cash sell or redeem together, and on the issuer’s balance sheet, where the riskier slice of the reserve moves with markets and income moves with rates. Tether put its second-quarter net operating profit at about $1.50 billion, led by Treasury and repo income, and any rate cuts would thin that stream.
The documents that answer those questions are dull and public. The issuer’s terms say who may redeem and what the reserves may hold, and the attestation and audit carry dates worth checking. A venue’s rules say which price marks the collateral and which token pays the winner.
Checks like these hold still from one quarter to the next. The court fight over event contracts doesn’t, and Legal Sports Report, which covers those cases, is on Facebook.
The checkout sees a dollar. Whether it is one gets settled somewhere a checkout never looks.
Featured image by Petra Holmqvist.
