Editor's Note: Stablecoins are driving a revolution in the financial system, particularly in improving payment efficiency, cross-border transactions, and the foreign exchange market. The traditional foreign exchange system faces high costs, low efficiency, and settlement risks, while blockchain-based foreign exchange provides low-cost, instant settlement and transparency, significantly improving the efficiency of capital circulation. The widespread adoption of stablecoins not only enhances the convenience of cross-border payments but also provides financial inclusion for underbanked markets.
The following is the original content (edited for easier reading):
Preface:
The younger generation is a digital native, and stablecoins are their natural currency. As artificial intelligence and the Internet of Things drive billions of automated micro-transactions, the global financial system needs more adaptable currency solutions. Stablecoins, as a "currency API", can be transmitted seamlessly like internet data, and reached a transaction volume of $4.5 trillion in 2024, a figure that is expected to grow as more institutions recognize stablecoins as an unparalleled business model - Tether generated $5.2 billion in profit through its reserve investments in the first half of 2024.
In the competition of stablecoins, distribution and true adoption, not complex cryptographic mechanisms, are the key. Their adoption is unfolding in three critical areas: the native crypto world, the fully banked world, and the unbanked world.
In the $2.9 trillion native crypto world, stablecoins serve as the gateway to DeFi, widely used for trading, lending, derivatives, yield farming, and RWA. Crypto-native stablecoins compete through liquidity incentives and DeFi integration. In the over $400 trillion fully banked world, stablecoins improve financial efficiency, primarily used for B2B, P2P, and B2C payments.
Stablecoins focus on regulation and permissioning, and are distributed through banks, card networks, payments, and merchants. In the unbanked world, stablecoins provide access to the US dollar, promoting financial inclusion. Stablecoins are used for savings, payments, foreign exchange, and yield generation, and entry strategies for grassroots markets are crucial.
Outline
Preface:
·Natives of the native crypto world
·The battle of stable pegging
Challenges of liquidity bootstrapping
DeFi gateway: trading pairs, lending, derivatives, yields, RWA
·Foreigners in the fully banked world
Dynamics of key players
Efficiency drivers: B2B, P2P, C2B payments
·Pioneers in the unbanked world
Shadow dollar economy
Dollar access: savings, payments, foreign exchange
·Conclusion: Intertwined
Interoperability: cross-currency, cross-token, and cross-chain
Bright spots and unsolved mysteries
Natives of the crypto world
In Q2 2024, stablecoins accounted for 8.2% of the entire crypto market capitalization. Maintaining peg stability remains a challenge, and unique incentive mechanisms are key to expanding on-chain distribution, with the current core issue being the limited on-chain use cases.
The Battle of Stable Pegging
·Fiat-backed stablecoins rely on banking relationships:
93.33% of stablecoins are fiat-backed stablecoins, which have higher stability and capital efficiency, with banks having the final say through controlling redemptions. Regulated issuers like Paxos, due to their ability to successfully redeem billions of dollars of BUSD, have become the dollar issuer for PayPal.
·CDP stablecoins improved collateral and liquidation mechanisms to enhance peg stability:
3.89% of stablecoins are CDP-based stablecoins. They use cryptocurrencies as collateral but face challenges in scalability and volatility. By 2024, CDPs have improved resilience by accepting a wider range of liquid and stable collateral. Aave's GHO accepts any asset in Aave v3, and Curve's crvUSD recently added USDM (RWA). Partial liquidation mechanisms have been improved, especially the soft liquidation of crvUSD, utilizing its custom AMM to provide a buffer for further bad debt. However, the ve-token incentive model faces difficulties as CRV valuation drops during large-scale liquidations, shrinking the market cap of crvUSD.
·Synthetic dollars maintain stability through hedging:
Ethena USDe captured a 1.67% stablecoin market share with a $3 billion market cap in a year. It is a delta-neutral synthetic dollar, taking short positions in the derivatives market to counteract volatility. Its financing rates are expected to perform well in the upcoming bull market and even after the "point season".
However, its heavy reliance on the long-term viability of CEXes remains questionable. As similar products proliferate, the impact of small capital on Ethereum may diminish. These synthetic dollars may face black swan events and struggle with low financing rates during bear markets.
·Algorithmic stablecoins declined to 0.56%
Challenges of Liquidity Bootstrapping
Crypto stablecoins attract liquidity through yields, and fundamentally, their liquidity costs include the risk-free rate and risk premium. To remain competitive, stablecoin yields must at least match T-bill rates - we've seen that as T-bill rates reach 5.5%, stablecoin borrowing costs have declined.
sFrax and DAI are leading in T-bill exposure, and by 2024, multiple RWA projects have improved the composability of on-chain T-bills: crvUSD uses Mountain's USDM as collateral, while Ondo's USDY and Ethena's USDtb are backed by BlackRock's BUIDL.
Based on T-bill rates, stablecoins have adopted various strategies to increase the risk premium, including fixed-budget incentives (like DEX issuance, facing constraints and death spirals), user fees (correlated with lending and perpetual contract volumes), volatility arbitrage (declining when volatility weakens), and reserve utilization like staking or re-staking (less appealing).
In 2024, innovative liquidity strategies start to emerge:
Maximizing in-block yields:
Currently, many yields come from self-consuming DeFi inflation as incentives, but more innovative strategies are emerging. By leveraging reserves as a bank, projects like CAP aim to directly channel MEV and arbitrage profits to stablecoin holders, providing a sustainable and potentially more favorable yield source.
Compounding with T-bill yields:
Utilizing the new composability of RWA projects, plans like Usual Money (USD0) offer "theoretically" unlimited yields based on their governance tokens, with T-bill yields as the benchmark - it attracted $350 million in liquidity providers (LPs) and entered the Binance Launch Pool. Agora (AUSD) is another offshore stablecoin based on T-bill yields.
Balancing high-yield anti-volatility:
Newer stablecoins have adopted diversified basket strategies to avoid single-yield and volatility risks while providing a balanced high yield. For example, Fortunafi's Reservoir allocates across T-bills, Hilbert, Morpho, and PSM, dynamically adjusting the ratios and incorporating other high-yield assets as needed.




Tether dominates this field with a reliable 10-year track record. Even in the face of complex banking relationships and redemption crises - Tether once admitted in April 2019 that USDT was only 70% reserve-backed - its stability has remained intact.
This is because Tether has built a powerful shadow US dollar economy: in emerging markets, few people convert USDT back to fiat, they view it as the US dollar, a phenomenon particularly pronounced in Africa and Latin America, used to pay employees, bills, etc. Tether has achieved this without providing incentives, through long-term presence and consistent utility, enhancing its credibility and acceptance. This should be the ultimate goal for every stablecoin.
US Dollar Access
·Remittances: Unequal remittances slow economic growth. Individuals in sub-Saharan Africa are charged an average of 8.5% in remittance fees when sending money to low and middle-income countries and developed countries. For businesses, high remittance costs, long processing times, bureaucratic practices, and exchange rate risks directly impact the growth and competitiveness of businesses in the region.
·US Dollar Access: Currency volatility has cost 17 developing countries $1.2 trillion in GDP losses, or 9.4% of their total GDP, between 1992 and 2022. Access to the US dollar is crucial for local financial development. Many crypto projects focus on onboarding via "DePIN" methods, which leverage local agents to facilitate cash-to-stablecoin transactions in Africa, Latin America, and Pakistan.
·Foreign Exchange: Today, the daily trading volume in the foreign exchange market exceeds $7.5 trillion. In the Global South, individuals often exchange their local fiat currencies for US dollars on the black market, as the black market exchange rate is more favorable than official channels. Binance's P2P trading is starting to be adopted, but its order book-based approach lacks flexibility. Many projects, such as ViFi, are building on-chain automated market maker foreign exchange solutions.
·Humanitarian Aid Disbursement: Ukrainian war refugees can receive humanitarian aid in the form of USDC, which can be stored in digital wallets or cashed out locally. In Venezuela, frontline healthcare workers used USDC to pay for medical supplies during the pandemic, despite the worsening political and economic crisis.
Conclusion: Interoperability
Interoperability: As stablecoins see widespread adoption and different ecosystems converge, interoperability becomes a core challenge and opportunity in the future development of stablecoins. Enhancing cross-currency, cross-chain, and cross-monetary liquidity will be key to driving progress in this field.
The traditional foreign exchange system is inefficient and faces multiple challenges:
·Counterparty settlement risk (CLS has improved but is still cumbersome)
·Costs of multi-bank systems (e.g., 6 banks involved in JPY purchases in Australia, cleared through the London USD office)
·Global settlement time zone differences (e.g., CAD and JPY banking systems overlap less than 5 hours per day)
·Limited access to the FX market (retail users pay 100x the fees of large institutions)
Blockchain-based foreign exchange (Onchain FX) offers significant advantages:
·Cost, Efficiency, and Transparency: Oracle providers like Redstone and Chainlink offer real-time price quotes. Decentralized exchanges provide efficient cost control and transparency, with Uniswap's Concentrated Liquidity Market Maker (CLMM) reducing trading costs to 0.15-0.25%, about 90% lower than traditional FX. Shifting from T+2 bank settlement to instant settlement allows arbitrageurs to employ various strategies to correct pricing imbalances.
·Flexibility and Accessibility: Blockchain-based foreign exchange allows corporate treasurers and asset managers to access a variety of products without the need for multiple currency-specific bank accounts. Retail users can access the best FX rates using crypto wallets with embedded DEX APIs.
·Separation of Currency and Jurisdiction: Transactions no longer require domestic banks, allowing for the separation of currency and jurisdiction. This method leverages the efficiency of digitization while maintaining monetary sovereignty, but still has pros and cons.
However, challenges remain, including the scarcity of non-USD denominated digital assets, the security of oracles, support for long-tail currencies, regulatory issues, and unified on-chain/off-chain interfaces. Nevertheless, blockchain-based foreign exchange still offers tremendous opportunities. For example, Citi is developing a blockchain-based FX solution under the guidance of the Monetary Authority of Singapore.
Stablecoin Exchanges
Envisioning a world where most companies issue their own stablecoins, stablecoin exchanges pose a challenge: how to use PayPal's PYUSD to pay a JP Morgan merchant. While on-/off-ramp bridges can solve this problem, they lose the efficiency promised by cryptocurrencies. Blockchain-based automated market makers provide the optimal real-time, low-cost stablecoin-to-stablecoin trading.
For example, Uniswap offers some such liquidity pools with fees as low as 0.01%. However, once billions of dollars flow into blockchains, they must rely on the security of smart contracts and have sufficient depth and instant performance to support real-world activities.
Cross-Chain Exchanges
Major blockchains have their own pros and cons, leading to the need for stablecoins to be deployed across multiple chains. The multi-chain approach brings the challenge of cross-chain interoperability, with bridge technologies posing significant security risks. My view is that stablecoins should launch their own Layer 0 (base layer) protocols, such as CCTP for USDC, Layer 0 integration for PYUSD, and a similar Layer 0 solution for USDT's redemption bridge tokens.
Meanwhile, there are still some open questions:
·Will regulation undermine "open finance" given that compliant stablecoins may monitor, freeze, and seize funds?
·Can compliant stablecoins still avoid providing yield that may be viewed as securities, preventing on-chain decentralized finance from benefiting from their massive scaling?
·Can any open blockchain handle massive amounts of capital given Ethereum's slow transactions, its L2 dependence on a single sequencer, Solana's imperfect launch record, and the lack of long-term stability in other hyped blockchains?
·Will the separation of currency and jurisdiction lead to more chaos or opportunities?
The prospects of the financial revolution led by stablecoins are both exciting and uncertain - a new chapter where regulation and freedom dance in a delicate balance.
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