Stablecoin supply reached $303 billion in August 2026, up 6% year-over-year from $285 billion, according to Allium data reported by CoinDesk. Over the first eight months of 2026, identified stablecoin payment volume stood between $401 billion and $527 billion, up 42% to 63% on the previous year—a reading that isolates payment activity from the much larger universe of on-chain transfers.
That distinction is central to interpreting the figures. Allium separates identifiable payments from transfer activity associated with trading, derivatives, protocol mechanics and intermediary routing.
Data Snapshot
| Metric | Current | Previous | Change | Period | As of | Source |
|---|---|---|---|---|---|---|
| Stablecoin supply | $303 billion | $285 billion | up 6% year-over-year | August 2026 | August 2026 | CoinDesk |
| Stablecoin payment volume | between $401 billion and $527 billion | — | up 42% to 63% on the previous year | first eight months of 2026 | August 2026 | CoinDesk |
| Exchange-held stablecoin supply | $89 billion | — | — | August 2026 | August 2026 | CoinDesk |
| DeFi-held stablecoin supply | $26 billion | — | — | August 2026 | August 2026 | CoinDesk |
| Total stablecoin transfer volume | $85 trillion | — | — | January to August 2026 | August 2026 | CoinDesk |
Identified payments reached between $401 billion and $527 billion
The $401 billion to $527 billion estimate covers the first eight months of 2026 and refers specifically to identified stablecoin payments. Its 42% to 63% increase on the previous year points to growth in the labeled payment segment rather than in every stablecoin transaction recorded on-chain.
Allium’s September 2026 report analyzes more than $300 billion in labeled stablecoin payment volume across more than 150 blockchains from 2024 to 2026. The scope reflects an effort to classify payment use rather than treat raw transfer counts or values as evidence of commercial settlement.
Business-to-business transfers led payment activity
Business-to-business transfers were the largest stablecoin payment lane, with businesses receiving 58% to 64% of identified payments, according to the reported Allium breakdown.
The range applies to recipients within the identified-payment dataset, not to all stablecoin transfers. Allium’s broader methodology includes non-payment categories such as trading, derivatives, protocol mechanics and intermediary routing.
Supply remained concentrated with two issuers
Allium’s August 2026 breakdown showed Tether and Circle accounting for 85% of total stablecoin supply. Total supply was $303 billion, compared with $285 billion a year earlier.
Distribution data also showed $89 billion of stablecoin supply held on exchanges, versus $26 billion held in DeFi in August 2026, according to CoinDesk’s account of Allium’s figures. Those holdings describe where supply was held in the reported breakdown; they do not by themselves identify the purpose of each balance.
The $85 trillion transfer figure covers a broader activity base
Total stablecoin transfer volume reached $85 trillion from January to August 2026. That is not comparable one-for-one with the $401 billion to $527 billion identified-payment estimate: the transfer total also includes trading, derivatives, protocol mechanics and intermediary routing.
Allium and BCG describe the distinction in their methodology discussion, arguing that raw transfer volume is broader than payment activity. The two measures therefore show different parts of stablecoin use: a labeled payments market led by business-to-business flows, and an aggregate transfer market with substantial non-payment activity.
