DeFi Faces Risks Under CLARITY Act Rules

The CLARITY Act is getting most of its attention for how it treats stablecoins. But the bigger impact may land somewhere else entirely.

According to Markus Thielen, founder of 10x Research, the real pressure point could be the decentralised finance ecosystem that’s grown around those stablecoins – not the assets themselves.

According to Thielen, proposed provisions to limit yield on stablecoins, in practical terms, would redefine stablecoins as payment tools rather than savings instruments. For many users, yield has been one of the main reasons to hold and use stablecoins in the first place.

A Shift Back Toward Traditional Finance

Thielen’s argument is straightforward: the yield doesn’t disappear – it moves.

“This represents a clear re-centralization of yield,” he wrote in a recent note, pointing to banks, money market funds, and other regulated vehicles as the likely winners.

In other words, if stablecoins can’t offer returns, that value is likely to resurface in more traditional financial structures. And that’s a problem for crypto-native platforms that have long competed by offering better yields than the legacy system.

There’s an obvious counterpoint here. One might expect that limiting centralised yield products would push users toward DeFi instead, but Thielen doesn’t think it plays out that way.

Why DeFi Might Not Be Spared

That assumption, he argues, only works if DeFi sits outside the same regulatory reach. And that’s far from guaranteed.

Under the CLARITY framework, the pressure could extend beyond stablecoins themselves – reaching into front-end interfaces and even token models, especially where fee-sharing or governance starts to resemble equity-like behaviour.  If that interpretation holds, a large part of the DeFi sector could find itself under tighter constraints.

Thielen points specifically to decentralised exchanges like Uniswap, SushiSwap, and dYdX, as well as lending platforms such as Aave and Compound. These platforms could face new limits on how they operate, and on how they distribute value to users and token holders. If that happens, the knock-on effects are fairly clear: lower trading activity, thinner liquidity, and weaker demand for tokens across the space.

A Bigger Question About DeFi’s Model

The issue isn’t just compliance or added friction. A lot of DeFi is built around yield generation and token-based value accrual. If regulation draws a hard line between payment tools and investment products, some of those models may not fit cleanly on either side.

Where those lines end up will matter. Some protocols may adapt. Others may need to rethink their design more deeply.

Potential Winners: Regulated Players

While the outlook for DeFi looks uncertain under this framework, Thielen is more optimistic about regulated players. Circle, the issuer of USDC, stands out as a likely beneficiary.

If stablecoins are more tightly defined as payment instruments, that effectively pushes them deeper into formal financial infrastructure. Companies already operating within that regulatory perimeter could benefit from that shift. As Thielen puts it, the legislation is “structurally bullish” for firms like Circle that have leaned into compliance rather than yield-driven growth.

Still Early – and Far From Final

It’s worth noting that the CLARITY Act hasn’t passed yet, and the final version could look quite different. Key provisions may change. Some may be softened. Others could be clarified in ways that alter the overall impact.

Still, the broader point Thielen is making doesn’t depend entirely on this one bill. Tightening the rules around yield and value distribution tends to favour incumbents and puts pressure on more experimental, decentralised models.

The Takeaway for DeFi

For DeFi builders and token holders, the message is a cautious one. The idea that regulation on centralised platforms automatically creates an opening for decentralised alternatives sounds intuitive. But in practice, it may not hold up – especially once the details come into focus.

And if Thielen is right, the fine print is where the real impact will be felt.