Circle shares posted their worst day ever on March 24 after a new CLARITY Act draft proposed banning yield payments on stablecoin balances.

Circle Internet Group shares plunged 20% on March 24, recording their worst single-day performance since the company went public, after the latest CLARITY Act draft proposed banning yield payments on passive stablecoin balances.
A revised version of the CLARITY Act released over the weekend included new language that would prohibit stablecoin issuers from paying yields on passive balances. The provision specifically targets structures "economically equivalent to interest," which directly threatens the revenue model Circle uses for USDC.
Circle currently earns interest on USDC's backing assets, primarily U.S. Treasuries, and shares a portion of that income with distribution partners like Coinbase. This yield-sharing arrangement has been a key driver of USDC adoption, particularly among institutional holders. Coinbase shares also fell nearly 10% on the news, reflecting the platform's dependence on the USDC revenue stream.
The draft text does allow rewards tied to user activity, such as spending or staking, but bans rewards simply for holding a stablecoin balance.
The stablecoin yield model is central to the economics of the $300 billion stablecoin market. Circle holds roughly 26% market share with USDC, and its yield-sharing program has been the primary tool for competing against Tether's USDT, which dominates with about 59% market share.
Removing passive yield capability would force Circle to find alternative value propositions for USDC holders. Some analysts argue this could actually benefit Tether, which does not distribute yields to holders. Others see the provision as a compromise that brings stablecoins closer to traditional banking regulation, where demand deposits also cannot offer unrestricted interest.
The CLARITY Act still requires a Senate vote, and the stablecoin yield provision remains one of the most contentious sections. Polymarket odds currently place passage at 68%. Coinbase CEO Brian Armstrong has previously advocated for stablecoin yield access, arguing the restriction would hurt consumers. His response to this latest draft could influence the final text. The House Financial Services Committee is also holding a major tokenization hearing on March 25 that could shape broader digital asset regulation.
The CLARITY Act's stablecoin yield provisions mark a critical turning point for the stablecoin industry. Whether the final legislation preserves, modifies, or eliminates yield payments will reshape the competitive dynamics between USDC, USDT, and emerging stablecoin alternatives.

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