Tether (USDT) Price on May 21, 2026
On May 21, 2026, Tether (USDT) was trading at $0.9991. Its market cap that day was $189.68B, with $47.05B in 24-hour trading volume. Since then, USDT is up 0.1% — it's trading at $0.9998 today. This is historical market data — not financial advice.
30 days up to 2026-05-21
High $1.0002 (2026-04-21) · Low $0.9991 (2026-05-20) · Daily closing prices.
Price levels
| 30-day high | $1.0002 2026-04-21 |
|---|---|
| 30-day low | $0.9991 2026-05-20 |
| Range | $0.9991 – $1.0002 |
| Where price sits in that range | 1% — Nearer the low |
- Below $0.9991 would be the lowest since 2026-05-20.
- Above $1.0002 would be the highest since 2026-04-21.
Levels are taken from the last 30 daily closes. They describe what has happened, not what will happen.
| Price on 2026-05-21 | $0.9991 |
|---|---|
| Market cap on 2026-05-21 | $189.68B |
| 24h volume on 2026-05-21 | $47.05B |
| Price today | $0.9998 |
| Change since 2026-05-21 | +0.06% |
USDT on nearby dates
Other coins on 2026-05-21
Frequently asked questions
How much was Tether worth on 2026-05-21?
Tether (USDT) was trading at $0.9991 on 2026-05-21.
How much is Tether worth today?
Tether is trading at $0.9998 right now. That is up 0.1% compared with its 2026-05-21 price of $0.9991.
What was Tether's market cap on 2026-05-21?
Tether's market cap on 2026-05-21 was $189.68B, on $47.05B of 24-hour trading volume.
What were the high and low in the 30 days up to 2026-05-21?
The highest daily price in that window was $1.0002 on 2026-04-21, and the lowest was $0.9991 on 2026-05-20.