What is USDT and why it matters
Tether makes a digital coin called USDT. USDT is a stablecoin. A stablecoin is a type of cryptocurrency that tries to keep its value close to a stable thing, usually the US dollar or another real asset. People use USDT to move money quickly between different crypto markets, to save value, and to trade without the big price swings that other cryptocurrencies can have.
In this article, we explain what happened with USDT in the fourth quarter of 2025 (October through December) and what it means for the crypto world. We will break down all the big numbers, explain some terms, and show how the company behind USDT, Tether, is doing on different fronts like finances, reserves, and fundraising.
Big growth in users and a high market value
USDT reached a market capitalization of $187.3 billion in the fourth quarter of 2025. Market capitalization, or “market cap,” is a way to measure how big a cryptocurrency is by multiplying its price by the total number of coins in circulation. In plain language, it shows how valuable the whole USDT system is at that moment.
This quarter marked the eighth straight quarter in which Tether added more than 30 million USDT users. That is a long streak of growth, even when other parts of the crypto market were struggling. In total, the number of USDT users increased by about 35.2 million during Q4 alone. By the end of December 2025, the total count of USDT users reached about 534.5 million. This number includes people who use USDT on the blockchain itself (on-chain wallets) and people who use USDT on centralized platforms (big crypto exchanges or other companies that hold users’ money for them).
On-chain users and how they behave
Let’s break down the on-chain part. An on-chain wallet is a digital wallet that holds the private keys needed to control the USDT on the blockchain. In Q4 2025, the number of on-chain holders rose by 14.7 million in that quarter, which was the biggest single-quarter growth ever recorded for these wallets. By the end of the quarter, there were 139.1 million on-chain USDT holders.
Within these on-chain wallets, people can be grouped by how they use their USDT:
- Savers are people who keep most or all of the USDT they receive. In Q4, savers accounted for 30.8% of on-chain wallets and kept all of the USDT they received in many cases.
- Savers with large holdings are those who keep between two-thirds and the full amount of the USDT they get. They made up 6.7% of wallets.
- Senders are wallets that keep less than two-thirds of the USDT they receive. They represented 62.6% of on-chain wallets.
Looking at activity, monthly on-chain users averaged 24.8 million during Q4. This group represented 68.4% of all monthly active users of stablecoins that month, which is the highest share ever recorded for on-chain USDT users. In plain terms: more people were actively using USDT on the blockchain each month than ever before, compared with other stablecoins.
What is in Tether’s reserve?
People want to know that USDT is backed by real assets. This is called the reserve. Tether reports that its total reserves rose to $192.9 billion in Q4 2025. Here are the main parts of those reserves:
- Bitcoin (BTC) holdings stood at 96,184 BTC, which is up by 9,850 BTC in the quarter.
- Gold holdings reached about 127.5 metric tons, up by 21.9 metric tons.
- US Treasuries (US government debt securities) totaled $141.6 billion, up by $6.5 billion.
The company’s net equity (the value of assets minus liabilities) stood at $6.3 billion at the end of the quarter. In 2025, Tether added $28.2 billion of US Treasuries. This made Tether the seventh-largest buyer of US Treasuries in the world. In simple terms, Tether bought a lot of U.S. government bonds to back its USDT reserves. Some observers even said they compared this buying to the activity of whole countries like Taiwan and South Korea, which shows how big the purchases were for a private company.
What happened after the October 2025 market event?
On October 10, 2025, a big wave of selling in the crypto world happened. This was called a crypto liquidation cascade. It caused the total value of the crypto market to fall by more than one-third by February 1, 2026. In plain terms: many crypto prices fell at once, and the total value of all crypto assets dropped a lot.
Despite this tough period for most crypto assets, USDT still grew. The report shows USDT rose by 3.5% after the crash, while the two biggest other stablecoins fell. The second-largest stablecoin dropped by 2.6%, and the third-largest fell by a very large 57% during the same time. So, USDT held up better than its main rivals in that rough period.
Where is USDT held?
At the end of the quarter, the largest share of USDT was held on centralized exchanges, which are big, traditional-looking places where people buy and sell crypto. They held 36% of USDT. Savers held 33% and senders 26.5% of USDT at quarter-end. Savers increased their holdings by $2.9 billion to reach $62.1 billion. Senders added $2.2 billion. On the other hand, USDT stored on decentralized exchanges and in DeFi (decentralized finance) dropped by $3 billion, ending at $7.1 billion. DeFi is a way to use financial services directly on the blockchain without traditional banks or middlemen.
Tether’s fundraising plans and investor talks
Earlier in the month, reports said that Tether had scaled back its plans to raise more money. The company had talked about a very large fundraising target, with a valuation around $500 billion. This is a number people used as a rough idea of how big the company could be. Advisers then started looking at a much smaller amount, around $5 billion. This was a big change from the earlier discussion of $15–$20 billion. The valuation is how much investors think a company is worth.
Tether’s Chief Executive Officer (CEO) is Paolo Ardoino. He said that the higher figure (the $500 billion valuation) was never a firm target, and that the company does not urgently need outside money. Some investors questioned whether the high valuation was realistic, but the talks were still early, and there was no final decision yet on the size or timing of any fundraising. In short: the company kept the door open for potential future fundraising, but it was not rushing into it.
Why these numbers matter for the market and users
USDT is one of the most used stablecoins. A stablecoin like USDT can help traders move money quickly between different exchanges and markets without worrying about big price swings. The fact that USDT grew its user base to more than half a billion people and kept its value backed by a diverse mix of assets can give traders and investors more confidence in using it, especially during tough times for the broader crypto market.
However, it is important to remember that the crypto world is still complex and sometimes risky. A company’s assets, liabilities, and how it reports them are important. People rely on these numbers to see if USDT is truly backed and ready to be used for its main job: to be a stable, reliable way to move money around in the crypto world.
What to watch next
Investors and users will be watching whether Tether can keep growing the USDT user base, whether its reserves stay strong, and how fundraising plans develop. They will also be watching how USDT performs compared to other stablecoins as the market quietly evolves. These watches are important because they can influence how people trade, save, and move money in the world of digital currencies.
Definitions in simple terms
Below are short, simple explanations of some terms used in this article. You can click the links to read more on Wikipedia if you want extra background.
- Tether (cryptocurrency) — A cryptocurrency called USDT that is designed to stay close in value to the US dollar. Learn more.
- Stablecoin — A crypto coin that tries to keep its value steady, usually by being tied to a stable asset like the US dollar. Learn more.
- Bitcoin — The first and most well-known cryptocurrency, created to be a peer-to-peer electronic cash system. Learn more.
- Cryptocurrency wallet — A device, program, or online service that stores the keys needed to use a crypto coin. It can sign transactions for you. Learn more.
- Decentralized finance — Financial services (like lending or trading) that run on smart contracts on blockchains, without needing traditional banks or brokerages. Learn more.
Source: CryptoPotato
