December 31st is packed with financial events! The Federal Reserve FOMC minutes, China-US manufacturing PMI data, crude oil inventory reports are all being released, along with initial jobless claims statistics. These indicators are likely to stir market volatility on the last trading day of the year. Bitcoin and Ethereum investors need to keep an eye on these key moments—macroeconomic data often serve as important short-term market disruptors, and missing them could mean missing the turning point of the market. Especially the wording of the Federal Reserve minutes and the data exceeding expectations have always had the most direct impact on the volatility of mainstream cryptocurrencies. To stay steady during this year-end rush, thorough preparation is essential.