Solana's Mid-2026 Stablecoin and Ecosystem Boom: USDC Mints, SoFiUSD Growth, and 100M Daily Transactions

Important caveat: Despite some claims of a specific $1 billion USDC mint on Solana on July 1, 2026, in 15 minutes, and cumulative issuance reaching $64.25 billion, these specific figures could not be confirmed from the available sourced evidence. The closest sourced milestones are the $57B cumulative figure as of mid-June and a $1B mint over a 24-hour window rather than 15 minutes .

SoFiUSD: A Bank-Issued Stablecoin Finds Its Home on Solana

A major development in the stablecoin landscape was the growth of SoFiUSD (SOFID), the first stablecoin issued by a U.S. nationally chartered bank. SoFi Technologies launched SoFiUSD on Ethereum in December 2025 and deployed it on Solana on April 2, 2026, alongside the launch of its Big Business Banking platform . SoFi chose Solana for its enterprise settlement layer, citing transaction cost, settlement speed, and throughput .

The Solana deployment drove explosive growth. SoFiUSD's total supply tripled from $100 million to $300 million over five weeks, with all of the net growth coming from Solana. According to Artemis data published on June 30, the Ethereum supply of SoFiUSD remained flat throughout that period, while Solana supply climbed past $200 million . SoFiUSD became available to SoFi's nearly 15 million members within its banking app on May 27, 2026, marking the first consumer stablecoin deployment by a nationally chartered U.S. bank on a public, permissionless blockchain .

Grayscale Report: Solana Processes Over 100 Million Daily Transactions

A research report from Grayscale Investments in July 2026 painted a picture of a mature, high-capacity blockchain. Grayscale's Head of Research, Zach Pandl, reported that Solana had processed an average of over 1,200 transactions per second, pushing daily transaction volumes past 100 million . The report also noted that the network supported approximately 4.3 million daily active users and hosted over 1,000 decentralized applications . Cumulative transaction fees on Solana reached approximately $100 million, a sign of its economic activity . Other on-chain data corroborated this high throughput; Dune Analytics data shared by Solana Payments showed the blockchain processing roughly 105.3 million transactions per day as of February 19, 2026 .

The Grayscale report framed SOL's value as tied to the economic output of applications built on the network . Separately, data indicated that roughly 68% of SOL's circulating supply was staked, contributing to network security .

A Note on Claims Not Confirmed by Available Sources

The research process also identified several claims that were not directly supported by the available sourced evidence. It is possible these events occurred but were not captured in the specific sources reviewed, or they may be unsubstantiated claims circulating in the community.

• $1B USDC mint in 15 minutes on July 1, 2026: Not found in sources. The closest events are $1B mints over 24-hour periods and a $500M mint in 10 minutes .
• Cumulative $64.25B USDC gross issuance on Solana in 2026: Not found. The sourced figure is approximately $57 billion as of mid-June .
• Polygon leading all blockchains in stablecoin transactions in May 2026: Not found in the retrieved sources.
• Solana ETFs surpassing $1 billion in inflows: Not confirmed by sources. GSOL ETF flow data showed modest net flows of approximately +$5.0 million over 30 trading days as of mid-June .
• Goldman Sachs disclosed as a Solana ETF holder: Not found.
• Solana crossing $10 billion in tokenized stock volume with 95% market share: Not found. The State of Solana report from February 2026 noted a new all-time high RWA market cap of $1.71 billion, a different metric .
• SEC and DTCC preparing regulatory frameworks for tokenized securities: Not found in the retrieved results.

Conclusion

The well-supported developments in Solana's mid-2026 ecosystem center on three key areas: Circle's relentless minting of USDC on Solana, reaching approximately $57 billion in gross issuance; SoFi's successful deployment and growth of its bank-issued SoFiUSD stablecoin, which tripled in five weeks entirely on the Solana network; and Grayscale's documentation of Solana as a high-throughput blockchain processing over 100 million daily transactions with millions of active users. While several more dramatic claims have circulated, they could not be verified with the available sourcing and should be treated with caution pending further evidence.