As the year comes to an end, institutional investors are gradually exiting the market. Industry insiders point out that during this period, market pricing power is gradually shifting towards algorithmic trading programs and tax-optimized sell orders. Specifically, the last few days of December may experience more pronounced volatility—reducing trading volume from institutional clients, while retail and automated trading become the main market participants. This structural change is often accompanied by decreased liquidity and increased volatility, and both ETH and other mainstream cryptocurrencies may be affected by year-end seasonal factors. For traders, understanding the microstructure of the market during this time window is crucial.