MakerDAO is a decentralized, over-collateralized stablecoin protocol built on Ethereum. Its core mechanism maintains DAI's 1:1 peg with the US dollar through over-collateralization, where price stability is achieved via market supply and demand dynamics. As a leading DeFi blue-chip project, MakerDAO boasts a mature and continually expanding ecosystem. Recently, it announced plans to enter the lending market with the upcoming Spark Protocol, based on Aave v3's smart contracts, expected to launch in April.
Project Overview
MakerDAO operates within the decentralized over-collateralized stablecoin sector. It is a well-established DeFi blue-chip project with a robust and expanding ecosystem. The protocol's primary function is to maintain DAI's dollar peg through over-collateralized loans, with stability mechanisms rooted in market forces and adjustable stability fees.
Following the March 2021 extreme market event, the protocol upgraded its liquidation mechanism to version 2.0, which was successfully tested during the May 2021 market crash. Founder Rune Christensen introduced the "Endgame Plan," a roadmap for the next decade focused on restructuring and decentralization. This includes creating independent MetaDAOs and launching a liquid staking derivative, EtherDAI. The upcoming Spark Protocol aims to leverage Aave v3's infrastructure to enter the lending market.
The sanctions against Tornado Cash highlighted the risks of over-reliance on USDC. Consequently, MakerDAO adjusted its Peg Stabilization Module (PSM) to reduce this dependency, including incorporating Real-World Assets (RWA) as collateral. While increasing RWA investments has improved revenue, it diverges from the goal of a fully decentralized stablecoin and introduces regulatory and loan default risks.
Despite bear market conditions impacting revenue, USDC remains a significant collateral asset, comprising nearly 40% of all collateral, primarily through the PSM. However, RWA investments are growing and now contribute the most to protocol revenue, significantly improving financials.
As DeFi blue-chips like MakerDAO and Aave expand into each other's territories, DAI maintains its lead in the decentralized stablecoin space. Aave's GHO stablecoin is still in testnet and unlikely to challenge DAI's position shortly. Application and adoption scenarios for GHO remain to be seen post-launch.
Core Components and Mechanisms
How MakerDAO Works
MakerDAO's core product is the DAI stablecoin system. DAI is an ERC-20 token minted by collateralizing on-chain assets at a specific over-collateralization ratio. It aims to maintain a stable value of $1, even in highly volatile markets.
The protocol initially launched a Single-Collateral DAI (SCD) system in 2017, allowing ETH as the only collateral. In 2019, it transitioned to a Multi-Collateral DAI (MCD) system, accepting additional asset types and boosting DAI supply. Key changes included introducing the DAI Savings Rate (DSR), enabling interest earnings on DAI deposits, and renaming Collateralized Debt Positions (CDPs) to Vaults.
Operational Logic
Users collateralize supported assets to borrow DAI. The process involves four primary actions: deposit, withdraw, borrow, and repay—essentially, DAI's minting and burning process. Unrepaid loans involve adjustable stability fees and potential liquidation, which are crucial for price stability.
Vaults are central to the DAI system, managing minting and burning. Users create Vaults via the Oasis platform, specifying collateral type and amount. For example, depositing 1 ETH ($1,000) might generate 660 DAI, resulting in a 151% collateral ratio. The user then holds a Vault and a debt of 660 DAI.
To redeem collateral, users repay the borrowed DAI plus stability fees (paid in DAI), after which the Vault returns the collateral and closes.
Price Stability Mechanisms
DAI's dollar peg is maintained through:
- Stability Fee Adjustment: The annual interest rate on generated DAI. If DAI trades above $1, lowering the fee encourages more minting. If below $1, increasing the fee prompts burning.
- DAI Savings Rate (DSR) Adjustment: Users earn interest by locking DAI in the DSR contract. MKR holders vote to adjust DSR: lowering it reduces demand if DAI is above $1, and raising it stimulates demand if below $1.
- Emergency Shutdown: A last-resort mechanism freezing all operations to ensure redeemability at the target price during crises.
Peg Stabilization Module (PSM)
Introduced in July 2020, the PSM is a fixed-price swap protocol for stablecoins, acting as a buffer for DAI's price. Users can deposit USDC, USDP, or GUSD to mint DAI at a 1:1 ratio (0.1% fee). These stablecoins are held as reserves, which MKR holders can vote to reallocate.
Currently, PSM-minted DAI constitutes about 57.6% of total supply. Post-Tornado Cash sanctions, MakerDAO has sought to reduce USDC exposure by:
- Adjusting Vault risk parameters (e.g., debt ceilings, stability fees).
- Incorporating Real-World Assets (RWA) as collateral, including tokenized real estate and invoices.
- Partnering with Coinbase Prime to earn interest on USDC reserves.
Technical Architecture
MakerDAO's system involves:
- Maintainers: Developers, Oracles (price feeds), and Keepers (market makers and liquidators).
- Governors: MKR holders and elected risk teams proposing and voting on changes.
- Users: Vault owners and DAI holders.
The Oracle system provides real-time collateral prices via a whitelist of feeder contracts. Prices are medianized and delayed by one hour using the Oracle Security Module (OSM) to prevent manipulation. Emergency Oracles can freeze feeds or trigger shutdowns if needed.
Liquidation 2.0
The upgraded liquidation mechanism uses a Dutch auction system (Dog version), where prices decrease over time. Key parameters include:
- Price buffer coefficient
- Price function (time-based decrease)
- Maximum auction duration
- Price reset conditions
This system efficiently handled the May 2021 crash, liquidating $41 million in debt without insolvency.
Auction Mechanisms
MakerDAO employs three auction types:
- Collateral Auctions: Sell undercollateralized assets to cover debts.
- Surplus Auctions: Sell excess DAI (from stability fees and penalties) for MKR, which is burned.
- Debt Auctions: Mint new MKR to cover unmet debts if the surplus buffer is insufficient.
The surplus buffer currently holds ~74.6 million DAI, below the 250 million DAI threshold for triggering surplus auctions.
Emergency Shutdown
Activated by Emergency Oracles or via the Emergency Shutdown Module (ESM) locking a threshold of MKR, this mechanism freezes operations, auctions collateral, and allows DAI holders to redeem assets at fixed rates before restarting.
Governance
MKR holders govern key risk parameters through voting:
- Debt ceilings
- Stability fees
- Liquidation ratios and penalties
- Auction parameters
Proposals undergo a governance security module delay (up to 48 hours) to allow for challenges and emergency actions.
Ecosystem and Development
Spark Protocol
Developed by Phoenix Labs, Spark Protocol is MakerDAO's foray into lending. Its first product, Spark Lend, is based on Aave v3, allowing borrowing against high-liquidity assets like ETH, wstETH, and WBTC. DAI borrowing costs 1%, with higher LTV ratios for ETH/wstETH under E-Mode.
Spark Lend integrates with PSM and DSR, enabling USDC-to-DAI conversions and earning savings interest. It will also bootstrap the upcoming EtherDAI liquid staking derivative. The roadmap includes fixed-rate lending, cross-chain support, and enhanced oracle systems.
Endgame Plan
The Endgame Plan outlines MakerDAO's decentralization over the next decade:
- MetaDAOs: Independent subDAOs with their tokens and treasuries.
- EtherDAI: A liquid staking derivative similar to Frax Finance.
Three Strategic Stances:
- Pigeon Stance: Focus on revenue with unlimited RWA exposure.
- Eagle Stance: Limit RWA to 25% if regulatory pressures increase.
- Phoenix Stance: Emergency mode if RWA assets are seized.
The plan progresses through four phases, starting with building EtherDAI, launching six MetaDAOs, and initiating liquidity mining.
Financial Analysis
DAI Supply and Distribution
DAI's supply peaked during DeFi summer but halved in the bear market. Current supply is ~5.2 billion, with a debt ceiling of ~7.28 billion. Distribution:
- 53.5% held by EOA addresses
- 16.2% on DEXs (Curve, Uniswap)
- Significant portions on lending platforms (Compound, Aave)
Collateral composition:
- USDC: 40%
- ETH: 11.5%
- RWA: 9.6%
- G-UNI: 8.1%
PSM-minted DAI dominates supply (36.6%), with USDC-PSM at 25.3%.
Revenue and Expenses
Revenue sources:
- Stability fees from Vaults
- Liquidation penalties
- PSM transaction fees
RWA investments now contribute 56.4% of revenue, followed by ETH Vaults (23.5%) and PSM (14.4%). Despite bear market losses, RWA has improved financials. Annual revenue (2022) was $37.75 million, with expenses of $34.09 million. Monthly expenses are ~$2.62 million against ~$1.51 million in revenue.
Competitive Landscape
Stablecoin Sector Overview
The stablecoin market exceeds $868 billion, dominated by centralized options:
- USDT: $304 billion (32.3%)
- USDC: $311 billion (33.1%)
- BUSD: $153 billion (16.3%)
DAI leads decentralized stablecoins with ~$8.2 billion (8.7%).
Aave and GHO
Aave, a leading lending protocol, plans to launch GHO, an over-collateralized stablecoin similar to DAI. Key differentiators:
- Facilitators: Approved entities can mint GHO within set limits.
- Interest Discounts: stkAAVE holders receive borrowing discounts.
- Integration: GHO will be native to Aave v3, leveraging its isolated and efficient modes for stability.
However, GHO is still in testnet and unlikely to challenge DAI's first-mover advantage soon. MakerDAO's Spark Lend will compete with Aave's lending market, with a profit-sharing agreement (10% to Aave after $100 million in DAI loans).
Risks and Challenges
- Smart Contract Risk: Vulnerabilities inherent in DeFi protocols.
- Regulatory Risk: RWA exposure may attract scrutiny, compromising decentralization.
- Default Risk: Credit-based lending (e.g., RWA) introduces potential loan defaults.
- USDC Dependency: Despite reductions, USDC remains a significant collateral asset, posing centralization risks.
Frequently Asked Questions
What is MakerDAO?
MakerDAO is a decentralized protocol on Ethereum that issues the DAI stablecoin, pegged to the US dollar through over-collateralization of crypto assets.
How does DAI maintain its peg?
DAI's stability relies on adjustable stability fees, the DAI Savings Rate (DSR), and liquidation mechanisms. Market arbitrage and the Peg Stabilization Module (PSM) also help maintain the peg.
What is the Endgame Plan?
The Endgame Plan is MakerDAO's long-term roadmap to decentralize through MetaDAOs, introduce EtherDAI (a liquid staking derivative), and reduce reliance on centralized assets like USDC.
What are Real-World Assets (RWA) in MakerDAO?
RWA refers to tokenized traditional assets (e.g., invoices, real estate) used as collateral to mint DAI. While boosting revenue, they introduce regulatory risks.
How does Spark Protocol work?
Spark Protocol, based on Aave v3, allows users to borrow DAI against collateral like ETH and wstETH. It integrates with PSM for stablecoin swaps and DSR for earning interest on DAI.
What are the risks of using MakerDAO?
Key risks include smart contract bugs, regulatory changes affecting RWA, potential loan defaults, and centralization risks from USDC dependency.