The rebound of the cryptocurrency market typically refers to the phenomenon where cryptocurrency prices begin to rise after experiencing a period of decline or stagnation. This rebound may be caused by various factors, including but not limited to:

1. **Improvement in Market Sentiment**: Investor confidence is restored, possibly due to positive news, policy support, or changes in market expectations.

2. **Technical Rebound**: After prices decline to a certain level, technical analysis indicators show oversold conditions, attracting buyers to enter the market.

3. **Macroeconomic Factors**: Changes in the global economic situation, such as interest rate adjustments and inflation rate changes, may affect investors' attitudes towards risk assets.

4. **Internal Industry Developments**: Advances in blockchain technology, the launch of new projects, or significant updates to existing projects can boost market sentiment.

5. **Entry of Large Investors**: Buying actions by institutional investors or large investors may drive market prices up.

When analyzing rebounds in the cryptocurrency market, it is important to consider the volatility and uncertainty of the market. The cryptocurrency market is relatively young and experiences significant price fluctuations, so investors should exercise caution and implement proper risk management when participating.

As of my knowledge update date (July 2024), the specific conditions of the cryptocurrency market may vary. If you need the latest market information, it is recommended to check the latest market analysis reports or use professional financial information platforms.