Reviewing the First Anniversary of DeFi Summer Through 6 Key Data Metrics

Why Start from "DeFi Summer"

If we trace back to June 29, 2020, when a mainstream exchange listed Compound (COMP) for trading, the spectacular "DeFi Summer" has already passed a full year. During this year, we have experienced both the glorious moments when various DeFi metrics skyrocketed and witnessed the tenacious growth of new forces after encountering various setbacks. One year later, we might as well take data as the entry point to comprehensively review the journey DeFi has taken and explore the possible development direction of DeFi in the future.

When discussing why we should start this topic from the rise of Compound in the summer of 2020, it's important to understand the historical context. In fact, if we follow the historical development of DeFi, we can trace back to MakerDAO, which was established in 2014. This is a DeFi project built on Ethereum that focuses on collateralized lending functions, and it is currently widely recognized in the industry as a star project that opened the door to DeFi. However, in the years following MakerDAO's launch, due to its relatively high participation threshold and the lack of a mature economic model, DeFi's development was basically in a low-key accumulation stage and was not well-known to the vast majority of investors in the crypto market.

It wasn't until concepts such as "Liquidity Mining" and "Yield Farming" were introduced that DeFi began to gradually gain widespread attention from the crypto community, thanks to its stable and relatively high returns with low risk. These innovative mechanisms allowed users to earn passive income by providing liquidity to decentralized protocols, fundamentally changing how people interacted with financial services on the blockchain.

Compound was the chosen one that ignited the first flame of "DeFi Summer" in 2020. Although the term "Liquidity Mining" was neither invented by the Compound team nor was it the first mechanism they adopted, Compound was the most important promoter of this concept. In the summer of 2020, Compound protocol released its governance token COMP, thereby promoting the concept of staking. COMP further led the market's liquidity mining craze. During this period, we also witnessed the historic moment when Yearn Finance's governance token YFI became the first crypto asset in history to exceed the price of Bitcoin, demonstrating the tremendous potential and innovation within the DeFi ecosystem.

Data Review of "DeFi Summer" First Anniversary

Total Value Locked (TVL): Maximum Growth of 58 Times

Total Value Locked (TVL) is one of the important indicators to measure the development scale of the DeFi ecosystem. It is calculated by summing the total value of all ETH and various ERC-20 tokens locked in DeFi protocol smart contracts. In simple terms, it represents how much real money investors of all sizes in the market have invested in DeFi smart contracts, participating in DeFi ecosystem construction while earning returns for themselves.

According to statistical data from OKLink, over the past year, the TVL of the Ethereum-based DeFi ecosystem grew from $1.92 billion at the end of June 2020 to a peak of approximately $113.57 billion (May 11, 2021), representing a maximum increase of about 5815.1%. Subsequently, due to market downturns, the TVL gradually declined. At the time of writing, the TVL was approximately $71.37 billion, still showing a 3617.2% increase compared to the data at the start of "DeFi Summer".

It should be noted that the TVL data mentioned above is calculated in US dollar value, while investors deposit various crypto assets into DeFi protocols. This means the data will change with the price fluctuations of crypto assets like ETH. In other words, when the amount of locked crypto assets remains unchanged, if the price of crypto assets rises, the TVL will increase accordingly, and vice versa. Therefore, to understand the sentiment changes of market investors toward the DeFi market more comprehensively and objectively, when using TVL as an indicator to measure the scale of the DeFi ecosystem, we can also refer to two auxiliary indicators: the amount of ETH and BTC locked in DeFi, which directly shows whether the ETH and BTC invested by investors in DeFi are changing, without considering market price fluctuations.

According to statistics from DeFiPulse, over the past year, the amount of ETH locked in DeFi increased from approximately 3.448 million to a peak of 11.006 million (April 21, 2021), representing a maximum increase of about 219.2%. Then, affected by several significant drops in ETH prices, the dual results of surging liquidation volumes and some users withdrawing assets to avoid risks combined, and the amount of ETH locked in DeFi ultimately retreated to 8.8 million, with a growth rate of about 155.2% compared to one year ago.

Looking at the amount of BTC locked in DeFi, according to statistics from DeFiPulse, there are currently 168,300 BTC locked in the Ethereum DeFi ecosystem, accounting for approximately 1% of the current total BTC circulation of 18.7489 million. Based on the Bitcoin price at that time, this contributed nearly $10 billion in locked value to the Ethereum DeFi ecosystem. One year ago, this figure was only 12,000 BTC. An interesting comparison can be made here with the amount of Bitcoin locked in the Bitcoin Lightning Network. According to media reports, as of June 15, 2021, the amount of Bitcoin locked in the Bitcoin Lightning Network just exceeded 1,500 BTC, which also shows that DeFi has considerable appeal to Bitcoin holders.

User Volume

DeFi user volume is one of the important indicators for measuring the development and activity of the DeFi ecosystem. It should be pointed out that the "user volume" indicator we quote here assumes that one independent address represents one user, which is different from the general sense of user count. In reality, a DeFi user may own multiple independent addresses, so this data may be overestimated. Additionally, there may be overlap in users across different protocols.

From the statistics provided by DeBank below, we can see that since the summer of 2020, especially in the first half of 2021, against the background of the overall bull market and under the incentive of various liquidity yield farming programs, the DeFi ecosystem flourished and welcomed another wave of user growth.

As of June 1, 2020, the number of users of all DeFi trading protocols that day was more than 6,200 people, while the peak was on May 11, 2021, when the number of trading users that day was 850,000 people, an increase of nearly 140 times within one year. This explosive growth demonstrates the increasing accessibility and appeal of DeFi platforms to both retail and institutional investors.

Total Borrowing Volume

Taking MakerDAO and Compound mentioned above as examples, lending services are a very important part of the DeFi ecosystem. The total borrowing volume based on these smart contracts can reflect the collateral and lending scale of lending protocols in the DeFi ecosystem and can also serve as an important indicator for evaluating user trading activity. From OKLink's statistics, we can see that at the end of June 2020, the total borrowing volume of all DeFi was $540 million. Compared to the peak of $19.3 billion on May 9, 2021, this represents an increase of more than 3474.1% within one year.

This dramatic increase in borrowing volume indicates not only growing trust in DeFi lending protocols but also the increasing sophistication of users who are leveraging these platforms for various financial strategies, from simple yield farming to complex leveraged trading positions.

Trading Volume

For any trading-related project, observing changes in trading volume is undoubtedly the most intuitive and convincing indicator. After the Compound collateralized lending protocol, rapidly rising DEXs with more diverse liquidity mining options such as Uniswap and SushiSwap provided DeFi players with rich trading platforms, showing a trend of catching up with centralized exchanges (CEX) in terms of trading volume.

Specifically, according to DeBank statistics, at the end of June 2020, the trading volume on DEX was only about $60 million, and by May 29, 2021, this figure had reached $23.01 billion, representing a maximum increase of 382.5 times. This exponential growth in DEX trading volume demonstrates the market's increasing preference for decentralized trading solutions, driven by factors such as better privacy, reduced counterparty risk, and the ability to maintain custody of assets throughout the trading process.

Gas Price

The discussion about Gas prices has actually run through the entire development process of DeFi. During the explosion of DeFi Summer, we could often hear DeFi investors complaining that transaction fees were often as high as tens or even hundreds of dollars. For some investors with smaller capital volumes, it often occurred that mining returns were insufficient to offset the fees. In fact, before the arrival of DeFi Summer, the Gas Price, which marks the price of the Ethereum network, had already shown significant growth, increasing from single-digit Gwei levels to tens of Gwei levels.

However, it is obvious that after the launch of liquidity mining, Gas Price increased rapidly in the short term, far exceeding the historical average level and remaining at a high level for a long time thereafter. From the data, we can see that if we take June 1, 2020, as the reference point, the Gas Price that day was 30 Gwei, while the peak was on September 17, 2020, when the average Gas was 544 Gwei, an increase of 18 times in 3 months.

This surge in Gas prices highlighted one of the main challenges facing the Ethereum network during periods of high DeFi activity: scalability. The congestion and high fees prompted the development and adoption of Layer 2 solutions and alternative blockchain networks, fundamentally changing the landscape of DeFi infrastructure.

Oracle Call Frequency

Oracles, as tools that transmit data from outside the blockchain to inside the blockchain and thereby ensure the authenticity of on-chain data, are very important underlying infrastructure in blockchain networks. Before the rapid development of DeFi, oracles had not actually been applied on a large scale. However, since DeFi Summer, the demand for oracles has also undergone earth-shaking changes, which can be clearly seen through the number of oracle calls.

From the data, we can see that on June 1, 2020, the number of oracle calls that day was only 72 times. Compared with the peak of 40,000 times on December 18, 2020, this represents an increase of more than 500 times in half a year. This dramatic increase in oracle usage reflects the growing complexity and sophistication of DeFi protocols, which increasingly rely on accurate, real-time external data for functions such as price feeds, interest rate calculations, and automated market making.

Can the Glory of "DeFi Summer" Be Reproduced?

From the overall situation of the crypto market at that time and the data mentioned above, after experiencing a second explosion from April to May, the DeFi ecosystem had returned to a low period. Whether from the changes in ETH Gas prices or the price changes of DeFi tokens, it seemed to announce that the DeFi ecosystem had entered a downturn.

So, does this mean that the Ethereum DeFi ecosystem has hit a ceiling? It seems we don't need to rush to conclusions. If we look at the overall data of the crypto market, the DeFi ecosystem is still in a very early stage of development. Although Ethereum's total locked value had shrunk to a scale of $71.3 billion at that time, from another perspective, we can also say that there are still more assets that have not yet entered the DeFi ecosystem.

DeFi has preliminarily verified that the financial industry can operate without gatekeepers or centralized intermediaries, and it is possible to create an environment where anyone can safely lend, borrow, and trade directly. There are still as many as 1.7 billion people in the world who do not have bank accounts in the traditional financial world. Therefore, as DeFi infrastructure continues to improve, interaction design becomes more user-friendly, and usage thresholds are further lowered, these 1.7 billion people are likely to skip traditional financial society and directly become participants and beneficiaries of the decentralized financial world.

When this transformation occurs, it will undoubtedly usher in a larger and more sustained explosion period. The potential for financial inclusion, combined with innovations in cross-chain interoperability, improved scalability solutions, and enhanced security measures, suggests that the DeFi ecosystem has significant room for growth. The lessons learned from the first DeFi Summer will inform the development of more robust, efficient, and accessible decentralized financial services, paving the way for the next wave of adoption and innovation in the space.

FAQ

What is DeFi Summer? When did it start?

DeFi Summer refers to the explosive growth period of decentralized finance assets from mid-2020 to mid-2021, driven by global economic stimulus and investors seeking higher yields. The peak occurred from December 2020 to May 2021, with massive trading volumes in DeFi tokens.

What important events occurred during DeFi Summer?

DeFi Summer 2023 featured major legal victories including the XRP ruling and Grayscale ETF approval, alongside regulatory actions against Binance and FTX, reshaping the crypto industry landscape significantly.

What are the 6 key data metrics mentioned in this article?

The six key data metrics are user scale and quality, engagement analysis, channel analysis, feature analysis, user attribute analysis, and revenue analysis.

DeFi Summer一年来总锁定价值（TVL）增长了多少倍？

DeFi总锁定价值（TVL）从2020年1月的6亿美元增长到2020年12月的260亿美元，一年时间内增长了超过40倍。

DeFi Summer对加密货币市场的整体影响是什么？

DeFi Summer dramatically expanded the crypto market, increasing total locked value from 1.92 billion to 113.57 billion dollars, user base grew 140 times, and transaction volumes surged 382.5 times, establishing DeFi as a critical market infrastructure.

Which projects performed most outstandingly during DeFi Summer?

During DeFi Summer, TAO CAT stood out with impressive performance, leveraging AI Agent technology through Virtuals and Bittensor ecosystems. Other notable projects in the AI Agent sector also demonstrated strong momentum and innovation.

DeFi Summer之后DeFi生态发生了什么变化？

DeFi has matured with optimized infrastructure and standardized trading models, but lost its exploratory charm. Users became more conservative, prioritizing steady returns over innovation. The ecosystem stabilized while dynamic growth slowed, with participation increasingly driven by incentives rather than genuine demand.

What are the differences between the current DeFi market and the DeFi Summer period?

Current DeFi market shows matured infrastructure and lower market sentiment compared to DeFi Summer's euphoria. Trading volumes remain substantial but less volatile. Innovation continues in Layer 2 solutions, cross-chain protocols, and institutional adoption has increased significantly.

What are the risks and lessons from DeFi Summer?

DeFi Summer's main risks included high gas fees, smart contract vulnerabilities, and unsustainable yield farming returns. Key lessons: due diligence is critical, regulatory uncertainty poses major risks, and excessive leverage amplifies losses. These events highlighted the importance of security audits and risk management.

What are the future prospects for DeFi development?

DeFi's future is exceptionally bright. Enhanced user experience, seamless payment integration, and regulatory clarity will drive mainstream adoption. By 2026, DeFi is positioned to become a primary alternative to traditional banking, with improved consumer-grade solutions and broader ecosystem maturity accelerating growth.