Signs of a rebound in the cryptocurrency market often include several key signals. First, trading volume significantly increases, especially when prices hit a bottom, indicating increased buying power. Second, prices test the bottom multiple times without making new lows, forming a solid support area. Additionally, market sentiment gradually shifts from panic to optimism, and the greed and fear index begins to rise. In terms of technical indicators, the RSI recovers from the oversold area, the MACD shows a golden cross, and moving averages start to turn upward. The news front may also improve, such as the release of favorable policies or significant positive news. Finally, mainstream coins outperform smaller tokens, indicating that funds are gradually flowing into core market assets. These signs are often early indicators of a rebound, but a comprehensive assessment should still consider macroeconomic and risk factors.

The reasons for the rise in Bitcoin prices are usually attributed to supply and demand dynamics, market sentiment, and the macroeconomic environment. Firstly, the supply of Bitcoin is fixed, with a total of only 21 million coins, and its scarcity gives it value storage properties. Secondly, market demand has increased with the entry of institutional investors and the attention of retail investors, especially during periods of fiat currency devaluation or economic instability, when people view Bitcoin as a safe-haven asset. Additionally, the development of blockchain technology and the decentralized nature of Bitcoin have attracted more recognition. Changes in the regulatory environment, news hotspots, and bull market cycles can also drive market sentiment. Finally, global macro factors, such as loose monetary policy, inflation expectations, and a weak dollar, often push capital towards crypto assets, further driving up prices.