Cardano vs Tether
Cardano (ADA) ranks #19 by market capitalization at $8.0B and Tether (USDT) ranks #3 at $183.4B, as of September 5, 2026. Cardano has a fixed maximum supply of 45.0B ADA; Tether has no fixed supply cap. Cardano is available on 26 exchanges we have verified and Tether on 21; 16 list both.
Verified How we verify
Side-by-Side
 Cardano |  Tether | |
|---|---|---|
| Market cap rank | #19 | #3 |
| Price | $0.212 | $1.00 |
| Market cap | $8.0B | $183.4B |
| Fully diluted valuation | $9.5B | $188.9B |
| 24-hour volume | $525.7M | $61.8B |
| Circulating supply | 37.5B ADA | 183.4B USDT |
| Maximum supply | 45.0B ADA | No fixed cap |
| All-time high | $3.09 (September 1, 2021) | $1.32 (July 23, 2018) |
| Change from all-time high | −93.1% | −24.4% |
| 7-day change | +4.9% | 0.0% |
| 30-day change | +12.6% | +0.1% |
| Category | layer-1 | stablecoin |
| Chains | the Cardano network | 11 chains including Ethereum, Klay Token, and Tezos |
| Launched | — | — |
Where You Can Buy Each
| Cardano | Tether | |
|---|---|---|
| Exchanges listing it | 26 | 21 |
| Countries and US states with a ranked buy page | 70 | 70 |
16 exchanges list both; 70 locations have a ranked buy page for both.
Frequently Asked Questions
- Which has the larger market cap, Cardano or Tether?
- Tether, by about 23.1× as of September 5, 2026: $8.0B for Cardano against $183.4B for Tether.
- Does Cardano or Tether have a fixed supply?
- Cardano is capped at 45.0B ADA; Tether has no fixed maximum supply.
- Where can I buy both Cardano and Tether?
- 16 exchanges we have verified list both. Pick your location on the buy pages to see which serve you and what a $500 purchase costs.