Examples of ATH for some popular currencies (up to 2024):
- **Bitcoin (BTC):** Reached ~ **69,000 USD** in November 2021.
- **Ethereum (ETH):** Recorded ~ **4,878 USD** in November 2021.
- **Other currencies:** Each currency has its own ATH based on its historical performance.
### Why is it important to know the ATH?
1. **Performance measurement**: Comparing the current price to its all-time high.
2. **Market analysis**: Some investors buy when breaking the ATH (bullish signal), or sell when approaching it (resistance).
3. **Alerts**: Many track ATH to make buying or selling decisions. $ETH $BTC