Circle's Darkest Day in History: Will Regulatory Changes Impact Its Business Model

Author: Mario Stefanidis, Head of Research at Artemis Analytics; Source: Artemis; Translation: Shaw Golden Finance

CRCL plummeted 20% on Tuesday (U.S. local time), marking the largest intraday drop since listing, with a single-day market cap evaporating $5 billion. Trading volume reached 56.4 million shares, nearly four times its 90-day average. Coinbase also fell 11% amid the ripple effects.

The entire stablecoin sector experienced a valuation re-evaluation within hours. The trigger was a new draft of the CLARITY Act, which essentially aims to kill passive income from stablecoins.

However, the impact of the event goes far beyond a single day’s decline. A regulatory game, the inherent fragility of business models, and a wallet freeze incident have compounded the already falling stock prices.

CLARITY Act Bombshell

On March 20, Senator Thom Tillis (Republican from North Carolina) and Angela Alsobrooks (Democrat from Maryland) announced a principled agreement supported by the White House on stablecoin yield issues. On Monday, the full text of the bill was reviewed behind closed doors on Capitol Hill by industry leaders.

Key clause: Prohibit stablecoins that generate passive income solely through holding dollar-pegged tokens. Exchanges, brokers, and their affiliates are not allowed to directly or indirectly offer yields on stablecoin balances, nor provide yields in any manner “economically equivalent to interest.”

Active rewards tied to payments, transfers, or platform usage will still be permitted. The SEC, CFTC, and Treasury will jointly define compliant reward scopes and anti-avoidance rules within a year. Notably, the SEC and CFTC recently signed a milestone inter-agency memorandum ending years of disputes and disagreements.

Congress explicitly set a boundary that the banking lobby has insisted on for two years: Stablecoins can be used as a payment tool but must never replace deposits.

An internal stakeholder email obtained by reporter Eleanor Terrett shows that an industry leader involved in the closed-door meeting said the bill’s text “runs counter to” previous communications with the White House. The person warned that the “economic equivalence” standard is deliberately vague, and future regulators might interpret it very strictly.

Impact on Circle Far Exceeds Others

Currently, 95.5% of Circle’s revenue comes from interest earned on USDC reserves, which explains the recent sell-off.

Circle issues USDC, investing reserves in short-term government bonds and overnight repurchase agreements to earn spreads. In Q4 2025, reserve income reached $711 million, up 60% year-over-year, mainly driven by a 97% increase in USDC circulation. Full-year revenue for FY2025 was $2.7 billion, up 64%.

The CLARITY Act does not directly target Circle’s reserve earnings (which it earns itself), but it hits the growth engine behind demand. Currently, platforms like Coinbase pay users yields on stablecoins as incentives for holding USDC. Coinbase’s stablecoin-related revenue is projected to reach $1.35 billion in 2025, up from $910 million in 2024. If exchanges can no longer offer yields on USDC balances, users’ motivation to hold USDC instead of traditional bank deposits will significantly weaken.

Reduced yield sharing means lower USDC adoption, leading to a shrinkage in reserve size, and ultimately, Circle’s interest income will decline.

Timing worsens the situation. As the Federal Reserve cuts rates, reserve yields have fallen from 4.49% in Q4 2024 to 3.81% in Q4 2025. Although the market no longer factors in rate cuts this year, Circle’s interest income was already under pressure before the bill was introduced.

USDC Fundamentals Never Stronger

On the same day as the stock plunge, USDC’s core metrics hit record highs:

• Circulation: $81 billion as of late March, above the $76 billion at the end of 2025;

• On-chain trading volume: $6.8 trillion (adjusted) in Q4 2025 alone, more than doubling YoY;

• Market share relative to USDT: Since August 2025, USDC trading volume has surpassed USDT monthly, accounting for over 80% in 2026 so far;

• Q4 performance exceeded expectations: Revenue of $770 million, versus $745 million expected; EPS of $0.43, 23% above market consensus.

Circle also announced expansion into Africa through a partnership with Sasai Fintech and completed a significant integration with Intuit.

Wallet Freeze Incident Adds Fuel

On Monday night, Circle froze USDC balances in 16 corporate hot wallets, disrupting operations at multiple exchanges, casinos, and forex platforms, including FxPro, Pepperstone, AMarkets, and HeroFX.

The freeze reportedly stems from a U.S. civil case, details of which have not been disclosed. On-chain analyst @zachxbt raised sharp questions, pointing out that anyone with basic on-chain analysis tools can identify these as operational business wallets handling thousands of transactions. He warned that opaque freezes based on an undisclosed civil lawsuit could turn USDC into a “politicized gatekeeping tool.”

The USDC smart contract code explicitly grants blacklisting and freezing permissions, including the ability to wipe assets from frozen addresses. On a day when market confidence in centralized stablecoins is already fragile, this incident looks particularly bad.

Still Bullish Logic Remains

The recent sell-off has already priced in the most pessimistic expectations of the CLARITY bill. From an optimistic perspective, several points remain worth noting:

Active rewards are unaffected. The bill clearly distinguishes between passive income (prohibited) and transactional incentives (allowed). Platforms like Coinbase are exploring solutions: marketing incentives, behavior-based payments, collaborations with issuers, etc., to blur the line between interest and rewards. The “economic equivalence” standard itself is vague, implying ongoing legal battles.

Coinbase’s profit and loss may not change much. Since Coinbase mainly passes on stablecoin yields to users, related revenue is usually offset by expenses. Analysts believe the direct impact on profitability is limited. The bigger concern is whether restrictions will slow USDC’s long-term adoption.

The bill is not yet in effect. Committee review is expected after the Easter recess in late April. The industry still has time for lobbying, amendments, and negotiations. Coinbase CEO Brian Armstrong has not publicly commented on the latest draft, but his past stance indicates Coinbase will strongly oppose the “economic equivalence” clause.

Non-reserve income is growing rapidly. Platform services, trading fees, and other non-reserve-related revenues grew over 15-fold YoY in Q4, reaching $37 million, with total other income for the year at $110 million. While still small compared to interest income, diversification is beginning to show.

Future Outlook

Before this plunge, CRCL’s stock had risen 170% from its February lows. Driven by strong earnings, USDC surpassing USDT in trading volume, and partnerships like Intuit, the stock climbed from $50 to $127. However, valuations had already fully priced in the perfect growth scenario of interest income, AI-driven payments, and asset tokenization, leaving no buffer for regulatory headwinds.

The current price hovers around $101, with a P/E ratio of about 9x annualized revenue. The key debate now is: Will the CLARITY bill kill USDC’s growth momentum or push it toward transformation? If stablecoins continue to expand in payments, cross-border settlements, and institutional use (with on-chain data remaining positive), Circle’s reserve income engine can still operate even if Coinbase can’t offer yields on idle balances.