Coinbase (COIN) shares have fallen approximately 58% from their 52-week high of $419.78, trading near $177 to $180 as of mid-April 2026.

William Blair's analysts say that decline has created a more attractive entry point for long-term investors and that the crypto market's current weakness does not reflect deteriorating structural conditions. Circle (CRCL), the issuer of the USDC stablecoin, sits at roughly $95.78 per share, well below its post-IPO high near $299 but up around 12% year-to-date from post-correction lows.

The USDC Thread Connecting Both Companies

The core of William Blair's thesis on both stocks runs through one number: USDC's market capitalization, which stood at $78.76 billion in April 2026, up from $75.12 billion at the end of 2025. USDC grew 73% across full-year 2025, outpacing rival Tether (USDT), which grew 36% over the same period. USDC now accounts for 64% of total stablecoin transaction volume, surpassing Tether for the first time in nearly a decade.

Coinbase and Circle share USDC reserve income under a formal revenue-sharing agreement. For balances held off Coinbase's platform, each company takes a 50% cut of interest income generated by USDC reserves. For balances held directly on Coinbase products, Coinbase captures 100%. In the fourth quarter of 2025, Coinbase reported $332.5 million in stablecoin revenue, with average USDC balances in its products reaching $17.8 billion. Full-year subscription and services revenue, which includes stablecoin income, came in at $2.8 billion, up 23% year over year. That revenue-sharing agreement is set for renewal in August 2026, making it a key contractual event for the sector this year.

In parallel commentary separate from the William Blair note, The Motley Fool observed in a recent analysis that "by investing in Circle, investors gain direct exposure to the future potential upside of USDC."

U.S. Treasury Secretary Scott Bessent has projected the stablecoin market will grow from roughly $300 billion to $3 trillion by 2030. That projection was framed around a baseline figure from earlier in 2026 and has already been outpaced in part: the total stablecoin market cap hit a new all-time high of $318.6 billion on April 11, 2026.

What Drove Coinbase Down

Coinbase's decline from its peak was not a single event. Centralized exchange spot trading volume dropped approximately 48% from its October 2025 peak, settling at around $4.3 trillion in March 2026, the lowest monthly figure in more than two years. The company's fourth-quarter 2025 earnings, released in February, showed revenue of $1.8 billion, a 5% drop from the prior quarter and a miss against analyst expectations. Shares fell nearly 8% on earnings day.

Multiple banks adjusted their outlooks. Barclays downgraded the stock to Underweight, and JPMorgan lowered its price target from $399 to $290, citing profitability headwinds tied to softer trading activity. The consensus analyst price target still sits in the $278 to $301 range, implying significant upside from current levels if trading volumes recover. Full-year 2025 revenue reached $7.2 billion, up 9% from 2024, and Coinbase's trading volume market share doubled during the year. By most readings of that data, the company held or expanded its competitive position even as the broader market contracted.

Beyond the U.S.: Stablecoin Adoption in Africa and South Asia

The broader stablecoin thesis plays out most visibly in regions where USDC adoption is growing fastest. The regional context below is not drawn from William Blair's April 13 note; it reflects wider market trends that bear on the USDC growth story underpinning that analysis.

Africa leads the world in stablecoin adoption, with 79% of crypto-active users holding stablecoins, according to Further Africa. Nigeria recorded $22 billion in stablecoin transactions between July 2023 and June 2024, the most recent full-year figure available.

Traditional remittance corridors into Sub-Saharan Africa charge fees of 7 to 9%; stablecoin transfers typically cost 1 to 3%. Circle and Sasai Fintech have partnered to explore USDC applications across Africa's mobile wallet ecosystem. That partnership reflects a broader expectation that USDC's regional relevance will expand independently of whether users ever open a Coinbase account.

India ranks first in the 2026 Global Crypto Adoption Index. South Asia as a whole has surpassed $4 trillion in cumulative stablecoin volume, driven by cross-border payment flows and demand from the Indian and Pakistani diaspora. Coinbase reopened Indian user registrations in late 2025 after a two-year pause and has invested in CoinDCX, India's largest exchange, giving it indirect regional exposure.

In markets like Pakistan, where the local currency has faced sustained pressure, USDC access through DeFi wallets and peer-to-peer platforms has expanded independently of Coinbase's direct presence.

What to Watch Next

The August 2026 renewal of the Coinbase-Circle revenue-sharing agreement is the most immediate catalyst to monitor. Its terms could alter how USDC growth translates into Coinbase revenue, which in turn shapes the financial case William Blair is making. A sustained recovery in crypto trading volumes would provide a separate lift. On the Circle side, continued USDC market cap expansion and the durability of the regulatory framework established by the GENIUS Act remain the primary variables. Passed by the U.S. Senate in June 2025, the GENIUS Act is the first federal stablecoin law in U.S. history, a milestone that materially shifts the regulatory landscape underpinning the stablecoin sector.

Regulators including the IMF have flagged that stablecoins carry the potential to transmit crypto market shocks into traditional finance. Circle's own stock falling approximately 68% from its all-time high near $299 to roughly $95.78 is a reminder that the infrastructure around stablecoins can be volatile even when the pegs themselves hold.