The dollar moves onto new rails
Stablecoins are not a crypto story anymore. They are dollars that settle in seconds, and the incumbents are already buying the rails. The opening is at the edges.
Neil Gaikwad
The size of the prize
What the consensus misses
Most people still file stablecoins under crypto. I think that framing is why the opportunity is mispriced. A stablecoin is a dollar that moves in seconds, at any hour, for close to nothing. US law now defines who can issue one, Visa settles with US banks in USDC, and Mastercard bought a stablecoin payments company. This is the payments industry upgrading its plumbing.
That also tells me where not to invest. The issuer layer is already concentrated: Tether and Circle hold about 89% of dollar stablecoins, and an issuer's income rises and falls with interest rates. The orchestration layer is being bought by the incumbents, with Stripe acquiring Bridge and Mastercard acquiring BVNK. Those are exits, not open markets.
The opening is at the edges, where the incumbents are weakest: dollar access for people and businesses in countries with unstable currencies, cards backed by stablecoin balances, and the compliance tooling every bank and issuer will need once the rules land. Agent payments are a real long-term idea, but at about $1.6M a month of genuine volume, they are an option to hold, not a market to underwrite.
Why now
The law is signed. The GENIUS Act became law in July 2025 and takes effect by January 2027 at the latest, with the OCC, FDIC and Treasury rules now in proposal.
The incumbents committed. Stripe launched its own payments chain, Tempo, and an open protocol for machine payments; Circle went public; Visa started settling in USDC; Mastercard closed its BVNK acquisition in August 2026.
Machines got payment protocols. Google announced AP2 with more than 60 partners, OpenAI and Stripe launched the Agentic Commerce Protocol, and Coinbase's x402 lets software pay software over plain web requests.
Where the value pools
| Layer | My call | Why |
|---|---|---|
| Issuers | Concentrates | Two issuers hold about 89% of the market, and income moves with interest rates. |
| Orchestration and APIs | Incumbents keep it | Stripe and Mastercard bought the leaders. New entrants are building toward an acquisition. |
| Emerging-market dollar access | Most value | Over $1T of deposits may move, and local on- and off-ramps are scarce. |
| Cards and spend on stablecoin balances | Durable value | Rain grew card volume 38-fold in a year by connecting stablecoins to existing card rails. |
| Agent payments | Long-dated | Protocols exist, volume does not. Worth small, early positions. |
Who is winning so far
| Company | What it does | Stage and last round |
|---|---|---|
| Circle | Issuer of USDC; payments network and its own chain | Public; about $21.6B market cap Oct 2026 · stockanalysis.com |
| Tether | Issuer of USDT, the largest stablecoin | Sought a raise near $500B; no close reported Feb 2026 · theblock.co |
| Tempo | Payments blockchain incubated by Stripe and Paradigm | Reportedly $500M at $5B Dec 2025 · decrypt.co |
| BVNK | Stablecoin and fiat payment infrastructure for businesses | Acquired by Mastercard Aug 2026 · investor.mastercard.com |
| Rain | Lets companies issue cards funded by stablecoins | $250M Series C at $1.95B, led by ICONIQ Jan 2026 · pymnts.com |
| M0 | Infrastructure for institutions to issue their own stablecoins | $40M Series B led by Polychain Aug 2025 · thedefiant.io |
| Catena Labs | Regulated financial infrastructure for AI agents; applied for a trust bank charter | $30M Series A co-led by a16z crypto and Acrew May 2026 · theblock.co |
| Skyfire | Wallets and payments for AI agents | $9.5M seed Oct 2024 · theblock.co |
Where I would write a seed check
Savings and business payments in countries with weak currencies, where Standard Chartered sees $1T+ moving.
Anti-money-laundering rules under the new law are still being written, and stablecoins were 84% of illicit crypto volume in 2025. Every bank and issuer will buy screening.
Limits, approvals, audit trails and liability for software that spends money. Early, but the protocols to build on now exist.
Early examples: Catena Labs, SkyfireFintechs and brands want their own dollar tokens without becoming full issuers.
Early examples: M0How it plays out
- 2027
The GENIUS Act takes effect, at the latest in January. Which issuers win federal or state approval sets the shape of the market.
- 2028
Card networks settle a real share of volume in stablecoins, and supply heads toward Standard Chartered's $2T.
- 2031
My expectation: stablecoins are a default rail for cross-border business payments, and one or two agent payment protocols carry billions a month.
- 2036
My expectation: most people using stablecoins never hear the word. It is just how a dollar moves inside apps and agents.
As of Oct 2026
Risks
- Concentration: Tether and Circle hold about 89% of dollar stablecoins. stablecoins.llama.fi
- Issuer economics depend on rates: reserve income was $668M of Circle's $701M quarterly revenue. circle.com
- Banks are lobbying to close what they call a yield loophole, warning of large deposit outflows. cointelegraph.com
- Illicit finance: stablecoins were 84% of illicit crypto transaction volume in 2025. theblock.co
- Supply is not a straight line: the market fell about $10B from its mid-2026 peak. stablecoininsider.org
Sources
- CoinGecko, Stablecoin categories
- DefiLlama, Stablecoins
- Cointelegraph, Stablecoin volume record (Jul 2026)
- Citi GPS, Stablecoins 2030
- The Block, Standard Chartered on emerging-market deposits
- Nilson Report, Merchant processing fees
- The Block, Regulators miss GENIUS Act deadline (Jul 2026)
- Stripe, Bridge acquisition completed
- Mastercard, BVNK acquisition completed (Aug 2026)
- Circle, Q2 2026 results
- Google Cloud, Agent Payments Protocol
- Cointelegraph, a16z on agent payment volume
Nothing here is investment advice: these are my own notes on public information, written to sharpen judgment, not to recommend buying or selling anything.