Stablecoin History
Stablecoin Origin
In the early 2010s, the crypto community recognized a gap:虽然比特币具有革命性，但其 volatility makes it unsuitable as "digital cash". Early adopters experimented with Hook assets that could serve as stable chain-native currencies.
The first attempt was BitUSD, launched on the BitShares platform in 2014. BitUSD was Hooked to the US dollar, but backed by BitShares tokens. To maintain the Hook, users deposited BTS as collateral, and smart contracts ensured BitUSD remained close to 1 US dollar. Although innovative, due to liquidity issues and complexity, BitUSD never gained mainstream attention.
Another early competitor was NuBits (2014), which attempted to maintain a dollar Hook through an algorithmic supply model. It worked for a short time, but liquidity dried up, and NuBits collapsed, indicating how vulnerable such systems could be without strong demand and trust.
These early projects were crucial in proving the concept of stablecoins, even if they were difficult to scale. They laid the groundwork for the giants that followed with fiat-backed stablecoins.
The Rise of Fiat-Backed Stablecoins
The introduction of Tether (USDT) in 2014 marked a breakthrough. Unlike early experimental models, Tether was simple: it claimed that each USDT token was backed by 1:1 US dollar reserves.
Tether's origin on the Omni protocol Initially, Tether was issued on the Omni protocol, which was built on the Bitcoin blockchain. Omni allowed the creation of custom digital assets, and Tether utilized it to distribute its first token. However, compared to emerging blockchains, Omni was slow and expensive.
As demand for Tether surged, particularly in crypto exchanges (it had become a key trading pair), the project migrated to other ecosystems. USDT first expanded to Ethereum (ERC-20), then to Tron (TRC-20), eventually expanding to over a dozen different blockchains, including Solana, Avalanche, and Polygon. This multi-chain approach helped Tether dominate liquidity in the crypto market.
Competitors Emerged
Tether's dominance also sparked demand for alternatives with higher transparency.
TrueUSD (TUSD) was launched in 2018, promising regular reserve audits.
Paxos Standard (PAX) and Gemini Dollar (GUSD) were launched as regulated stablecoins in the US.
USD Coin (USDC) was launched by Circle and Coinbase in 2018, due to its strong compliance and transparency measures, it quickly became the second largest stablecoin.
These fiat-backed stablecoins became the backbone of the crypto trading ecosystem. They provided a stable trading medium, a way to hedge volatility, and a way to transfer dollars around the world without a bank.
Algorithmic Stablecoins and Decentralized Experiments
Although fiat-backed tokens gained attention, many in the crypto community sought decentralized alternatives that did not rely on banks or centralized companies.
The most successful of these experiments was DAI, launched by MakerDAO in 2017. DAI was Hooked to the US dollar, but backed by crypto collateral (initially only Ethereum, later expanded to multiple assets). Users locked collateral in smart contracts to mint DAI, and if the collateral value fell too low, a liquidation mechanism would activate. This made DAI a cornerstone of decentralized finance (DeFi).
Other algorithmic projects experimented with more radical designs:
Basis (2017) planned a supply adjustment mechanism, but it closed due to regulatory issues.
Ampleforth (2019) introduced an "elastic supply" model, where token balances expanded or contracted in users' wallets.
TerraUSD (UST) saw explosive growth in 2021-2022, using a dual-token system with LUNA to stabilize its Hook. For a time, it was hailed as the future of decentralized stablecoins. However, in May 2022, UST lost its Hook and collapsed, erasing hundreds of billions of dollars and casting doubt on algorithmic designs.
DeFi Era Stablecoin
The rise of DeFi in 2019-2020 transformed stablecoins from trading tools into the backbone of decentralized finance. Lending, borrowing, and yield farming protocols all relied heavily on stablecoins.
DAI, USDC, and USDT became the main assets in liquidity pools, earning fees and rewards for users. Yield farming strategies typically involved circulating stablecoins through protocols to maximize returns.
Their appeal also extended to ordinary users: stablecoins provided a way to hold value on the chain without volatility. In unstable countries, stablecoins became lifeboats, allowing users to save in US dollars without bank accounts.
The prosperity of DeFi solidified stablecoins as indispensable infrastructure in the crypto economy.
Institutional and Enterprise Stablecoin
Large institutions also tried their own versions:
JPM Coin, launched by JPMorgan, allowed institutional clients to settle trades instantaneously.
Facebook's ambitious stablecoin project Libra (now Diem) aimed to create a global digital currency, but faced significant regulatory resistance and was abandoned in 2022.
Regulatory dialogue also accelerated interest in Central Bank Digital Currency (CBDC), a government-issued digital currency that competes with stablecoins.
Regulatory Milestones
In the United States, Congress and the SEC and Treasury Department held hearings on the role of stablecoins in the financial system.
The EU's MiCA framework (2023) introduced comprehensive rules for stablecoin issuers.
In Asia, Singapore and Japan introduced licensing regimes for fiat-backed stablecoins.
Current Situation and Future Prospects
Today, stablecoins are the backbone of the crypto ecosystem, with a market capitalization of over 1 trillion US dollars. The leaders are:
Tether (USDT): still dominates the market, widely used for trading and cross-border transfers.
USD Coin (USDC): Because of compliance and transparency, it is trusted and popular in the US and Europe.
DAI: the largest decentralized stablecoin, but increasingly supported by real-world assets.
Why are stablecoins important in the crypto ecosystem?
Stablecoins provide price stability in volatile markets, making them useful for trading, lending, payments, and savings. They can also serve as a bridge between traditional finance and decentralized finance (DeFi).
How do stablecoins maintain their value relative to the US dollar?
There are different models:
Fiat-backed: 1:1 reserves in US dollars or cash equivalents (e.g., USDT, USDC).
Crypto collateral: Excess collateral in volatile crypto assets locked in smart contracts (e.g., DAI).
Algorithmic: using supply adjustment mechanisms or paired tokens to stabilize prices (e.g., TerraUSD before the collapse).
Are stablecoins safe?
This depends on the type and issuer. Fiat-backed stablecoins rely on transparent reserves and audits, while crypto collateralized stablecoins rely on smart contract risk management. Historically, algorithmic stablecoins are the most vulnerable.
How are stablecoins different from CBDCs?
Stablecoins are issued by private companies or decentralized protocols, while Central Bank Digital Currencies (CBDCs) are government-issued digital currencies. CBDCs have sovereign backing, while stablecoins rely on reserves, collateral, or algorithms.
Which stablecoins are most trusted today?
As of now, Tether (USDT), USD Coin (USDC), and DAI are the most trusted and widely used. Each has different trade-offs in decentralization, transparency, and adoption.
Stablecoin development in 2025
In 2025, stablecoins completed the transformation from "crypto side branches" to the core infrastructure of global capital flows. According to a report by a16z, stablecoins achieved a total transaction volume of $46 trillion in the past year, a 106% increase from the previous year. Although this number mainly reflects capital flows rather than retail payments, it is almost three times the size of Visa and is close to covering the entire US banking system's ACH network.
Last year, the global stablecoin market capitalization exceeded $3 trillion, with more than 1% of US dollars existing in the form of tokenized stablecoins on public blockchains. In September, the adjusted monthly trading volume exceeded $1.25 trillion, setting a new record.
More importantly, 99% of global stablecoins are denominated in US dollars, USDT and USDC together account for 87% of the market share, and stablecoins have already become the 20th largest holder of US Treasuries, surpassing sovereign countries such as Saudi Arabia and South Korea. The largest issuer Tether holds over $120 billion in US Treasuries. Galaxy Research predicts that stablecoin transactions will exceed ACH in 2026, and at least one of the top three global card networks will process more than 10% of cross-border settlement volumes through public chain stablecoins, further solidifying the financial infrastructure attributes of stablecoins.
Global stablecoin regulatory frameworks accelerated in 2025, with different economies forming differentiated regulatory paths based on financial sovereignty and development needs.
The United States built a federal regulatory framework through the GENIUS Act, which took effect on July 18, 2025, becoming the first federal law to payment stable coins. The act requires stablecoins to be pegged to the US dollar at a 1:1 ratio, with reserves mainly configured in short-term US Treasuries and other highly liquid assets. Issuers must disclose the composition of their reserves monthly. The EU built the most stringent unified regulatory framework through the Crypto Asset Market Abuse Act (MiCA), covering 27 countries.