The reasons and background information for Ethereum (ETH) surpassing $2500 on May 12, 2025, are as follows:

1. Market sentiment and investor confidence:

The price of Ethereum has experienced significant increases in the past few days, primarily driven by market sentiment. Investor confidence in Ethereum has strengthened, partly due to the growth of the technological ecosystem and the proliferation of decentralized applications. Additionally, the conclusion of trade agreements between the US and the UK has also boosted market sentiment, leading to an increase in Ethereum's price.

2. Technical factors:

The technological development and upgrades of Ethereum are also important factors driving the price increase. Continuous technological advancements in Ethereum, including increased on-chain activity and strong network activity, have supported the price rise.

3. Market trends and macroeconomic factors:

The total market capitalization of the global cryptocurrency market has increased by 1.3% in the past day, indicating a positive overall market trend. Furthermore, changes in the global economic situation have also impacted Ethereum's price; when the economic situation improves, investors' risk appetite tends to increase, often driving cryptocurrency prices up.

4. Short-term volatility and risks:

Although Ethereum's price has surpassed $2500, there are certain risks in the market. For example, the RSI indicator shows that Ethereum is severely overbought, and there is a high probability of a pullback in the short term. Additionally, margin trading in the market has also amplified financial risks, and investors need to exercise caution.

5. Unexpected events and policy impacts:

Recent unexpected events and policy changes have also affected the price of Ethereum. For instance, after the US and China reached a new trade agreement, demand for cryptocurrencies increased, which also drove up the price of Ethereum.

In summary, Ethereum surpassing $2500 on May 12, 2025, is the result of multiple factors acting together, including market sentiment, technological advancements, macroeconomic conditions, short-term volatility, as well as unexpected events and policy changes.