A stablecoin is a promise to pay $1, backed by whatever the issuer holds. Here is what backs the two biggest, when stablecoins have broken their peg, why none is FDIC or SIPC insured, and what the GENIUS Act changes from January 18, 2027.
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Fully reserved dollar stablecoins are safer than most crypto assets, but they are not as safe as an insured bank deposit or a Treasury bill held in your own name. The price usually stays near $1 because large customers can swap coins for dollars with the issuer. When that channel stalls, or when investors doubt the reserves, the market price can fall below $1 within hours.
Scope: this page covers US-dollar payment stablecoins (the kind backed by reserves and redeemable at $1) from a US investor’s point of view, with the rules as of October 26, 2026. It does not cover DeFi lending yields, tokenized bank deposits or coin prices. For the bigger picture of assets on blockchains, start with what tokenization is. It is education, not advice for your situation.
| Risk | What can go wrong | How to check it |
|---|---|---|
| Reserve quality | Reserves lose value or cannot be sold fast enough to meet redemptions | The issuer’s latest reserve report: share of cash, T-bills and money funds vs other assets |
| Bank or custodian failure | Cash is stuck at a failed bank (USDC, March 2023) | Where reserves are held and how concentrated they are |
| Redemption access | You cannot redeem with the issuer and must sell below $1 | Who may redeem, minimum size, fees, timing |
| Issuer and jurisdiction | Insolvency or enforcement in a country with weaker holder protection | Issuing entity, its regulator, and the token’s terms |
| Platform | The exchange or wallet holding your coins fails or freezes withdrawals | Whether you hold coins yourself or through a platform |
| Smart contract and chain | A bug, a hack or a frozen address | Issuer freeze policy; which blockchain you use |
Through redemption: approved customers send dollars to the issuer and receive new coins, or send coins back and receive dollars. If the market price drops to $0.99, these customers can buy cheap coins and redeem them for $1, which pulls the price back up. A Federal Reserve study of the USDC episode in March 2023 found that only Circle’s direct customers, cleared through an application process, had access to this primary market; retail users buy and sell on exchanges instead (Federal Reserve, FEDS Notes).
The issuer keeps the interest on the reserves. That is the business model, and it makes stablecoin issuers sensitive to short-term rates: with the Fed’s target range at 3.75%–4.00% (raised on September 16, 2026, held on October 28) , a large issuer earns billions a year on Treasury bills. Tether reported about $1.5 billion of net operating profit for the second quarter of 2026 alone, led by Treasury and repo income (Tether). See the fed funds rate and the repo market for how those rates are set.
Mostly short-term US government debt, but the mix is different. Tether’s quarterly report, checked by BDO under the ISAE 3000R assurance standard, lists $187.75 billion of assets against $183.64 billion of liabilities on June 30, 2026, an excess of $4.11 billion (Tether reserves report). About 61% of those reserves were US Treasury bills ($114.96 billion) and 14% repurchase agreements ($25.62 billion); roughly 25% sat in gold, secured loans, bitcoin, other investments and public equities. A reserve chart grouped against the GENIUS asset list, and a stress test, are in USDC vs USDT.
Circle says the majority of USDC reserves sit in the Circle Reserve Fund (USDXX), an SEC-registered government money market fund managed by BlackRock, with the rest in cash, mostly at large banks. It publishes holdings weekly and gets monthly assurance from a Big Four accounting firm (Circle transparency page, Oct 22, 2026). A side-by-side of the two, including redemption terms and regulators, is in USDC vs USDT.
An attestation is not an audit. It checks balances at one moment. Tether says its 2025 financial statements received a first full audit from KPMG, released August 13, 2026, which reported reserves above liabilities by $6.814 billion at December 31, 2025 (Tether). Neither document tells you what the reserves are worth on a bad day.
Yes, twice in ways that mattered for ordinary holders, and for different reasons:
| Episode | What happened | Low | Cause |
|---|---|---|---|
| TerraUSD (UST), May 2022 | Price fell from $0.9964 to $0.7934 on May 7–8; market value down $18.47 billion by month-end; it never recovered | Collapsed | Algorithmic design with no cash reserves |
| USDC, March 10–13, 2023 | $3.3 billion of about $40 billion in reserves was stuck at Silicon Valley Bank; price recovered once redemptions resumed after the official guarantee for SVB depositors | $0.88 | Reserve bank failure over a weekend, when redemptions stopped |
Sources: New York Fed researchers on TerraUSD (Runs on Stablecoins) and on USDC’s fall to $0.88 (Stablecoins and Crypto Shocks). The lesson from 2023 is that a fully reserved coin can still trade below $1 when holders cannot redeem. The market has grown since: a Federal Reserve staff note put stablecoins’ total market value at about $317 billion on April 6, 2026 (FEDS Notes).
No. The GENIUS Act says payment stablecoins are not backed by the full faith and credit of the United States and are not subject to FDIC deposit insurance, and it makes it unlawful to market them as insured (sec. 4(e), P.L. 119‑27). The same law amends the Securities Investor Protection Act so that a stablecoin from a permitted issuer is not a “security” (sec. 17), which puts it outside SIPC coverage. Even reserve cash held in an insured bank does not pass insurance through to you: an FDIC proposal described in the OCC’s final rule would insure those deposits to the issuer as a corporate depositor, not to coin holders (91 FR 67000).
What the law gives instead is a priority claim: if a permitted US issuer fails, holders are paid from the required reserves ahead of the issuer’s other creditors (sec. 11). That protection applies to permitted issuers only, and only once the Act is in force. For how SIPC works on a normal brokerage account, see SIPC coverage for large accounts.
The GENIUS Act and the OCC’s final rule of October 21, 2026 turn today’s issuer promises into legal requirements for US-permitted issuers. Both take effect on January 18, 2027 (OCC). The four rules that matter most to a holder are below; reporting, audit and offshore-coin rules, the full timeline and the yield debate are in the GENIUS Act explained.
| Rule | What it requires | Source |
|---|---|---|
| Reserves | At least $1 per coin in cash, Fed balances, demand deposits, Treasuries with 93 days or less to maturity, overnight repo, or government money funds | GENIUS sec. 4(a)(1); OCC sec. 15.11(b) |
| Redemption | Within two business days of the requested date (OCC-supervised issuers) | OCC sec. 15.12(c) |
| Interest | Issuers may not pay holders interest or yield solely for holding the coin | GENIUS sec. 4(a)(11) |
| Insolvency | Holders have first claim on required reserves | GENIUS sec. 11 |
The $1 is the issuer’s promise to its direct customers; an ordinary holder gets the market price. Hypothetical holding of $20,000 of USDC on an exchange, using the redemption terms above and the March 2023 low:
| Route | What you receive |
|---|---|
| Redeem with the issuer | Not available: Circle redeems directly only for approved Circle Mint customers, and Tether’s minimum is $100,000 |
| Sell at $0.998 (illustrative normal day) | $20,000 × 0.998 = $19,960 (cost $40, before exchange fees) |
| Sell at $0.88 (USDC’s March 2023 low) | $20,000 × 0.88 = $17,600 (loss $2,400) |
| Hold until redemptions resume (what happened in March 2023) | Back near $20,000 within days, for holders who did not sell |
The gap between the second and third rows is the risk you carry without redemption access: it is set by how fast direct customers can redeem, not by the reserves alone. The prices are illustrative, not a forecast. The reserve stress test for USDT and USDC, how far non-cash assets could fall before the buffer is gone, is in USDC vs USDT.
When the money is savings rather than money in motion. Counterexample: a retiree parks $200,000 of emergency cash in a stablecoin on an exchange. USDT and USDC do not currently pay holders interest (the GENIUS Act’s issuer-yield ban takes effect on January 18, 2027), nothing is insured, and the exit depends on the platform. A Treasury bill ETF such as SGOV showed a 30-day SEC yield of 3.76% on October 22, 2026 (iShares). Illustrative arithmetic: $200,000 × 3.76% ≈ $7,520 a year of income given up, before any platform reward the investor might receive. Yields change; see where to park large cash and tokenized Treasury funds, which do pass the yield through.
Stablecoins fit a narrower job: moving dollars on a blockchain, settling crypto trades, or sending money across borders outside bank hours. For that job, the size of the balance and the time it sits there are the main risk controls.
Market intel provides market context, cross-asset analysis, an events calendar and regular written notes. These can inform your review of an existing plan; they do not reliably predict crashes or guarantee better outcomes.
No. The GENIUS Act states that payment stablecoins are not subject to FDIC deposit insurance and makes it unlawful to market them as insured. Reserve deposits at a bank are insured to the issuer, not passed through to holders.
There is no official ranking. Compare four things: the share of reserves in cash, short T-bills and government money funds; how often an accounting firm checks them; who can redeem and how fast; and the issuer’s regulator. From Jan 18, 2027, US-permitted issuers must meet the GENIUS Act’s reserve rules.
On Jun 30, 2026, Tether reported $187.75 billion of reserves: $114.96 billion in US Treasury bills, $25.62 billion in repurchase agreements, $18.84 billion in gold, $13.45 billion in secured loans, $5.80 billion in bitcoin and the rest in other investments and equities. Liabilities were $183.64 billion.
Yes. In March 2023, $3.3 billion of USDC’s roughly $40 billion of reserves was held at Silicon Valley Bank when it failed, and USDC traded as low as $0.88 before recovering to $1 once redemptions resumed.
USDT and USDC do not currently pay holders interest. From January 18, 2027, the GENIUS Act bars permitted and foreign issuers from paying interest or yield solely for holding a payment stablecoin. Rewards paid by exchanges or other third parties are judged case by case under the OCC’s Oct 21, 2026 final rule.
For a US-permitted issuer, the GENIUS Act gives holders first claim on the required reserves, ahead of other creditors. Coins from issuers outside that regime depend on their home country’s law and the token’s terms.
About $317 billion on April 6, 2026, according to a Federal Reserve staff note. On June 30, 2026, Tether reported $183.6 billion of tokens issued and Circle $73.3 billion of USDC in circulation.
Usually only through a platform. Circle redeems USDC directly only for approved Circle Mint customers, and Tether requires verification and a $100,000 minimum, charging the greater of $1,000 or 0.1%. Most people sell on an exchange instead.
Market intel provides a Risk ON / Neutral / Risk OFF reading from four pillars, cross-asset analysis, an events calendar and regular written notes. Context for reviewing a plan, not a crash forecast.
Educational content, not investment advice. Examples are illustrative; past performance does not guarantee future results.