For Ethereum, it is a growing liquidity gap. The sudden increase in stablecoin volume on the platform could threaten its decentralized economic model. The influx of stablecoins, while providing liquidity, poses a challenge to maintaining a healthy demand and usage of ETH, which is crucial for the network's security and functionality. The next few years are likely to be pivotal in deciding if Ethereum can fix its secret liquidity deficit.

By the middle of 2025, Ethereum defends over $127 billion worth of USDT and USDC stablecoins. That brilliant sum leapt by approximately $17 billion in only half a year’s time, beginning with a little over $110 billion at the new year. Recent data shows an astounding plunge down to $6.8 billion. This great concentration of stablecoin liquidity raises alarms about the long-term health and decentralization of the Ethereum ecosystem.

In mid-February this year, the value of DeFi activity in ETH spiked to nearly $30 billion. This recent uptick shines a light on the incredible resilience of the platform’s growing decentralized finance ecosystem. The stablecoin dominance is growing by the minute. Tether (USDT) holds a significant amount of power, with more than 50 percent of the stablecoin supply on Ethereum, and this would tip the balance of power. The potential impact of the discretion exercised by centralized stablecoin issuers might make their power over the Ethereum ecosystem greater still.

Ethereum’s economic security is highly dependent on three robust factors. These factors consist of the market value of ETH overall, its demand as collateral inside the network, and its utility as a staking token. The platform’s Proof-of-Stake (PoS) mechanism is apparently dependent on the market value of ETH to secure the network. The expansion of stablecoin liquidity is creating an existential challenge to keeping demand and general usage of ETH at healthy levels.

The stablecoin surge would decrease the demand for ETH. This could affect its overall price and undermine the economic incentives of the PoS system. This dynamic may play out to create a doomsday scenario where Ethereum’s economic security becomes untenable. As a public good, the only goal should be for Ethereum to continue to be a decentralized and secure economic coordination layer.