Ethereum's Vitalik Buterin is rethinking how DeFi handles market crashes

In a research post published Monday, Buterin proposed creating index-tracking assets using options contracts rather than the debt-based structures that underpin much of DeFi today.

What to know:

• Ethereum co-founder Vitalik Buterin proposed replacing DeFi's debt-and-liquidation model with an options-based system that could allow users to gain exposure to assets like the U.S. dollar or crypto indexes without facing sudden liquidations during market downturns.
• Buterin argued the design could reduce reliance on real-time price oracle, a major source of risk in DeFi, though the approach would require regular rebalancing and remains an early-stage research proposal.

Ethereum co-founder Vitalik Buterin is exploring a new way to build crypto investment products that could reduce one of decentralized finance's biggest risks: sudden liquidations.

In a research post published Monday, Buterin proposed creating index-tracking assets using options contracts rather than the debt-based structures that underpin much of DeFi today. The idea is to allow users to gain exposure to a basket of crypto assets, similar to an index fund, without relying on collateralized debt positions (CDPs), which can be wiped out when markets move sharply.

"What if we use options as the base of DeFi, instead of CDPs and liquidations?" Buterin wrote in a post shared on X.

Under today's DeFi model, users typically borrow against crypto collateral to create synthetic assets or stablecoins. If the value of that collateral falls too quickly, positions can be automatically liquidated, often triggering cascades of forced selling during periods of market stress.

Buterin argued an options-based system could replace that abrupt "you get liquidated" dynamic with a smoother process. Rather than instantly losing a position when prices move against a trader, exposure would gradually diverge from a target allocation, potentially making the system more resilient during periods of volatility.

A key advantage, according to Buterin, is that the design could function using slower-moving price oracles, the data feeds that tell DeFi protocols what assets are worth. Most DeFi applications today rely on near real-time oracle updates, which can become targets for manipulation during periods of market turbulence.

By contrast, Buterin said an options-based framework could work with "slow oracles" similar to those used by prediction markets. That could reduce the risk of protocols acting on incorrect price data and lessen the need for split-second automated liquidations.

The proposal is particularly relevant to algorithmic stablecoins, which have historically depended on oracle systems and collateral mechanisms that can fail under stress. Buterin said he would feel "much safer" holding algorithmic stablecoins built on an options-based structure than one that depends on real-time oracle feeds that could potentially be manipulated.

The idea comes with tradeoffs. Buterin acknowledged that such a system would require regular portfolio rebalancing and that it remains unclear whether those adjustments can be made cheaply and efficiently enough to avoid excessive trading costs or slippage.

The concept remains theoretical and has not been implemented on Ethereum. Still, it reflects a broader effort by Buterin to rethink the foundations of DeFi and develop systems that prioritize robustness over leverage.

Read more: Buterin says Ethereum Foundation will shrink, sell less ETH, and focus on 'CROPS'

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