After switching the consensus from PoW to PoS, $ETH gained staking rewards, creating a "maturity mismatch" arbitrage opportunity between its own LST (Liquid Staking Tokens) and LRT (Liquid Restaking Tokens).
As a result, leveraging, recursive lending, and term arbitrage of ETH staking rewards have become the largest use case for lending protocols like Aave, forming one of the foundations of current on-chain DeFi.
That's right, the biggest application scenario in DeFi today is "arbitrage."
But don't panic or be disheartened—traditional finance is the same way.
The problem is, ETH's maturity mismatch doesn't bring additional liquidity or other value to the blockchain industry or even the Ethereum ecosystem itself; it only brings continuous selling pressure, since the ETH staking rewards obtained by institutions ultimately need to be cashed out.
The selling pressure forms a delicate balance with ETH buying power and deflation. Although Vitalik dislikes excessive financialization of blockchain, he himself opened this Pandora's box.
We can draw a direct comparison between ETH and its liquid tokens, and the maturity mismatch in traditional bank deposits and loans.
Maturity mismatch most commonly occurs when banks absorb short-term deposits to issue long-term loans. This process addresses a fundamental contradiction in economic activity: the misalignment of liquidity preferences.
A credit-based monetary system creates broad money through loan issuance, effectively "monetizing" future productivity in advance. Although cyclical bubbles exist, the core genuinely serves real economic growth.
Without banks acting as intermediaries for maturity transformation, society's investment capacity would be strictly limited by the stock of long-term savings.
Maturity mismatch allows banks to pool idle funds by taking on liquidity risk, converting them into productive capital.
The risk lies in bank runs. Hence, there are central bank lenders of last resort and deposit insurance systems to counter these risks. But in reality, this socializes the maturity risk, transferring it to society as a whole.
In contrast, term arbitrage in the DeFi space is purely leveraged arbitrage, not value creation.
Institutions stake ETH on Lido to get stETH, use stETH as collateral on lending protocols like Aave to borrow ETH, and then repeat the first step for recursive lending.
This method amplifies ETH PoS staking rewards. As long as the borrowing cost is less than the Ethereum staking reward, it is profitable.
The borrowed ETH is not used to develop dApps or purchase assets but is immediately cycled back into the staking contract.
Although the PoS mechanism makes Ethereum more secure as capital increases, the "recursive staking" conducted by institutions through Lido and Aave is essentially an arbitrage on the network's security budget.
With the Dencun upgrade, mainnet Gas consumption is insufficient, and ETH has returned to an inflationary state. The selling pressure from institutions cashing out staking rewards creates structural price suppression.
Ethereum Foundation researcher Justin Drake once proposed the concept of "Minimum Viable Issuance" (MVI). If 15 million ETH staked is sufficient to resist nation-state attacks, then the current 34 million ETH staked actually represents an overcapacity of security.
In this context of "excess security," the newly issued ETH inflation is no longer a necessary security cost but becomes an inflation tax on token holders.
This is the current situation. The amount of on-chain stablecoins continues to hit new highs, and ETH is continuously being issued, but the largest use case is recursive lending arbitrage in lending protocols, which does not supplement market liquidity.
Therefore, Vitalik may not realize that Ethereum's transition to PoS is actually a "high-stakes gamble." Gambling on what?
First, ETH staking rewards versus U.S. Treasury bond yields.
After switching from PoW to PoS, ETH gained staking rewards, effectively turning it into a perpetual bond. The current stETH APY is 2.5%, lower than U.S. Treasury bonds. That is, ETH staking rewards are in a "negative spread" state compared to U.S. Treasury yields.
For institutions, buying ETH is less attractive than buying U.S. Treasuries or tokenized U.S. Treasuries. In other words, the price of ETH is currently discounting its disadvantage relative to U.S. Treasury yields.
Second, externalities brought by RWA. The total value of staked tokens determines the cost of attack and directly determines network security. Therefore, there may be a resonant rise between the total value of on-chain RWA and the total market cap of ETH.
Finally, whether one is bullish on Ethereum is a stance, but one can also choose a stance-free perspective—just look at the present.
That's all.
