Decentralized exchange (DEX) aggregator 1inch has launched its own Automated Market Maker (AMM) product, Mooniswap. This new solution aims to address some of the common challenges faced by traders and liquidity providers in the DeFi space. Let’s explore its core innovations and potential benefits.
What Is an Automated Market Maker (AMM)?
Automated Market Makers have reshaped how users exchange cryptocurrencies. By using liquidity pools, AMMs allow users to swap tokens in a fully decentralized and non-custodial manner. Liquidity Providers (LPs) can also earn passive income through trading fees, proportional to their share in the pool.
Bancor introduced the first AMM in 2017, enabling crypto trading without relying on external price data. Since then, innovative AMM designs from projects like Uniswap, Balancer, and Curve have emerged within the DeFi ecosystem.
A foundational concept behind many AMMs is the constant product formula, expressed as:
[ x \times y = k ]
Here, (x) and (y) represent the quantities of two tokens in a pool, while (k) is a constant. This equation maintains the product of the two assets, allowing the AMM to algorithmically determine prices based on pool reserves.
Despite their popularity, AMMs present certain risks, including impermanent loss for LPs and vulnerability to front-running attacks. Several projects are actively working on improving these mechanisms.
How Do Automated Market Makers Work?
AMMs balance asset pools through two types of participants: traders and arbitrageurs. Traders swap assets at the AMM’s quoted price, shifting the pool’s balance. Arbitrageurs then trade against the pool to bring the price back in line with the broader market, profiting from the discrepancy.
In an ideal scenario, profits from arbitrage would benefit the liquidity pool. However, in practice, front-running bots often extract value from LPs, reducing overall returns.
Challenges with Existing AMMs
Most AMMs today are built on variations of the constant product formula. Uniswap, for example, allows permissionless participation and requires no external price oracles. However, LPs are exposed to impermanent loss when exiting under unfavorable conditions.
Curve introduced a hybrid function combining constant product and constant sum formulas, optimized for stablecoin trades. While this improves pricing efficiency, it doesn’t fully resolve front-running or impermanent loss.
Bancor V2 attempted to reduce impermanent loss through dynamic weights and oracle-integrated pricing. However, reliance on external oracles introduced new vulnerabilities.
Many projects continue to experiment with improved AMM designs. Mooniswap, in particular, introduces a mechanism that allows LPs to capture a portion of arbitrage profits.
Introducing Mooniswap
Mooniswap is a next-generation AMM that uses virtual balances to redistribute arbitrage profits back to liquidity providers. This approach addresses front-running by delaying price updates after a trade.
Instead of instantly reflecting new prices, Mooniswap gradually adjusts exchange rates over a short period (approximately five minutes). This reduces the profitability of arbitrage trades, allowing the pool to retain more value from price slippage.
By creating a more competitive environment for arbitrageurs, Mooniswap increases the returns for LPs. Simulations indicate that Mooniswap can provide LPs with 50% to 200% higher returns compared to Uniswap V2.
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How Virtual Balances Work
Mooniswap introduces the concept of virtual balances for swap directions. After a trade occurs, the AMM does not immediately update the price. Instead, virtual balances shift slowly, reducing the profit margin for arbitrageurs. Multiple arbitrage trades may be required to bring the pool back to equilibrium, with each trade contributing a portion of slippage gains to LPs.
This method ensures that a significant share of arbitrage profits remains within the pool, enhancing yields for liquidity providers over time.
Swap Fees and Referral Program
Mooniswap initially charges a 0.3% swap fee, which may be reduced in the future to improve competitiveness. The protocol also includes a referral program: when a swap includes a referral address, 5% of the LP fee is allocated as a referral reward.
For example, on a 0.3% fee, 0.015% goes to the referrer, and 0.285% is distributed to LPs. This model incentivizes third-party integrations without imposing additional costs on traders.
No other protocol fees are applied.
VWAP Oracle
Mooniswap incorporates a Volume-Weighted Average Price (VWAP) oracle that aggregates cumulative trade data. The oracle updates after each transaction, providing on-chain price feeds that are resistant to manipulation. The use of virtual balances further enhances oracle security by smoothing out price updates.
User Interface and Experience
Mooniswap’s user interface draws inspiration from Uniswap, ensuring a familiar and intuitive experience for decentralized exchange users. This helps reduce the learning curve and encourages adoption.
Frequently Asked Questions
What is an AMM?
An Automated Market Maker is a decentralized exchange protocol that relies on mathematical formulas to price assets. It allows users to trade against a liquidity pool rather than a traditional order book.
How does Mooniswap reduce impermanent loss?
By using virtual balances, Mooniswap limits the profits arbitrageurs can extract from price slippage. This mechanism returns more value to the pool, reducing the negative impact of impermanent loss for LPs.
Can anyone become a liquidity provider on Mooniswap?
Yes, like most decentralized AMMs, Mooniswap allows permissionless participation. Users can contribute to pools and earn a share of the trading fees.
What is a VWAP oracle?
A Volume-Weighted Average Price oracle calculates the average price of an asset based on both price and trade volume over a specific period. It offers enhanced reliability and manipulation resistance.
Does Mooniswap support all ERC-20 tokens?
Mooniswap is designed to be compatible with a wide range of Ethereum-based tokens. However, users should verify whether a specific token is supported before trading.
How are referral rewards distributed?
When a user includes a referral address in a swap transaction, 5% of the LP fee is sent to the referrer. This is automatically processed by the smart contract.
Mooniswap represents a meaningful evolution in AMM design by aligning the incentives of arbitrageurs and liquidity providers. With its virtual balance mechanism, enhanced oracle, and fair fee structure, it offers a more sustainable model for decentralized trading.