Ethereum vs Tether
Ethereum (ETH) ranks #2 by market capitalization at $299.2B and Tether (USDT) ranks #3 at $183.4B, as of September 5, 2026. Ethereum has no fixed supply cap; Tether has no fixed supply cap. Ethereum is available on 32 exchanges we have verified and Tether on 21; 20 list both.
Verified How we verify
Side-by-Side
 Ethereum |  Tether | |
|---|---|---|
| Market cap rank | #2 | #3 |
| Price | $2,452 | $1.00 |
| Market cap | $299.2B | $183.4B |
| Fully diluted valuation | $299.2B | $188.9B |
| 24-hour volume | $14.5B | $61.8B |
| Circulating supply | 122.0M ETH | 183.4B USDT |
| Maximum supply | No fixed cap | No fixed cap |
| All-time high | $4,946 (August 24, 2025) | $1.32 (July 23, 2018) |
| Change from all-time high | −50.4% | −24.4% |
| 7-day change | +0.4% | 0.0% |
| 30-day change | +28.6% | +0.1% |
| Category | layer-1 | stablecoin |
| Chains | the Ethereum network | 11 chains including Ethereum, Klay Token, and Tezos |
| Launched | 2015 | — |
Where You Can Buy Each
| Ethereum | Tether | |
|---|---|---|
| Exchanges listing it | 32 | 21 |
| Countries and US states with a ranked buy page | 70 | 70 |
20 exchanges list both; 70 locations have a ranked buy page for both.
Frequently Asked Questions
- Which has the larger market cap, Ethereum or Tether?
- Ethereum, by about 1.6× as of September 5, 2026: $299.2B for Ethereum against $183.4B for Tether.
- Does Ethereum or Tether have a fixed supply?
- Neither has a fixed maximum supply.
- Where can I buy both Ethereum and Tether?
- 20 exchanges we have verified list both. Pick your location on the buy pages to see which serve you and what a $500 purchase costs.