Tether (USDT) Price on September 21, 2025
On September 21, 2025, Tether (USDT) was trading at $1.0004. Its market cap that day was $171.52B, with $49.13B in 24-hour trading volume. Since then, USDT is down 0.1% — it's trading at $0.9998 today. This is historical market data — not financial advice.
30 days up to 2025-09-21
High $1.0007 (2025-09-13) · Low $1.0000 (2025-09-08) · Daily closing prices.
Price levels
| 30-day high | $1.0007 2025-09-13 |
|---|---|
| 30-day low | $1.0000 2025-09-08 |
| Range | $1.0000 – $1.0007 |
| Where price sits in that range | 60% — Around the middle |
- Below $1.0000 would be the lowest since 2025-09-08.
- Above $1.0007 would be the highest since 2025-09-13.
Levels are taken from the last 30 daily closes. They describe what has happened, not what will happen.
| Price on 2025-09-21 | $1.0004 |
|---|---|
| Market cap on 2025-09-21 | $171.52B |
| 24h volume on 2025-09-21 | $49.13B |
| Price today | $0.9998 |
| Change since 2025-09-21 | −0.06% |
USDT on nearby dates
Other coins on 2025-09-21
Frequently asked questions
How much was Tether worth on 2025-09-21?
Tether (USDT) was trading at $1.0004 on 2025-09-21.
How much is Tether worth today?
Tether is trading at $0.9998 right now. That is down 0.1% compared with its 2025-09-21 price of $1.0004.
What was Tether's market cap on 2025-09-21?
Tether's market cap on 2025-09-21 was $171.52B, on $49.13B of 24-hour trading volume.
What were the high and low in the 30 days up to 2025-09-21?
The highest daily price in that window was $1.0007 on 2025-09-13, and the lowest was $1.0000 on 2025-09-08.