Tether (USDT) Price on December 21, 2025
On December 21, 2025, Tether (USDT) was trading at $0.9998. Its market cap that day was $186.77B, with $34.52B in 24-hour trading volume. Since then, USDT is up 0.0% — it's trading at $0.9998 today. This is historical market data — not financial advice.
30 days up to 2025-12-21
High $1.0004 (2025-12-03) · Low $0.9989 (2025-11-21) · Daily closing prices.
Price levels
| 30-day high | $1.0004 2025-12-03 |
|---|---|
| 30-day low | $0.9989 2025-11-21 |
| Range | $0.9989 – $1.0004 |
| Where price sits in that range | 58% — Around the middle |
- Below $0.9989 would be the lowest since 2025-11-21.
- Above $1.0004 would be the highest since 2025-12-03.
Levels are taken from the last 30 daily closes. They describe what has happened, not what will happen.
| Price on 2025-12-21 | $0.9998 |
|---|---|
| Market cap on 2025-12-21 | $186.77B |
| 24h volume on 2025-12-21 | $34.52B |
| Price today | $0.9998 |
| Change since 2025-12-21 | +0.00% |
USDT on nearby dates
Other coins on 2025-12-21
Frequently asked questions
How much was Tether worth on 2025-12-21?
Tether (USDT) was trading at $0.9998 on 2025-12-21.
How much is Tether worth today?
Tether is trading at $0.9998 right now. That is up 0.0% compared with its 2025-12-21 price of $0.9998.
What was Tether's market cap on 2025-12-21?
Tether's market cap on 2025-12-21 was $186.77B, on $34.52B of 24-hour trading volume.
What were the high and low in the 30 days up to 2025-12-21?
The highest daily price in that window was $1.0004 on 2025-12-03, and the lowest was $0.9989 on 2025-11-21.