股票为什么会跌？这个问题困扰着许多投资者和市场观察者。股票价格的下跌可能由多种因素共同作用导致，以下是其中的几个关键因素。

首先，公司业绩通常是影响股票价格的重要因素。当公司业绩下滑或出现亏损时，投资者会对公司的未来盈利能力和回报产生担忧，这可能导致股票价格下跌。此外，如果公司的财务状况出现问题或者现金流不足，也可能引发股票价格的下跌。英文翻译为：Why do stocks fall? This question troubles many investors and market observers. The decline in stock prices may be caused by a variety of factors, which are discussed below.

Firstly, company performance is often an important factor affecting stock prices. When a company's performance declines or it experiences a loss, investors may become concerned about the company's future profitability and returns, which may lead to a decrease in stock prices. Additionally, if a company experiences financial issues or insufficient cash flow, it may also trigger a decrease in stock prices.

其次，宏观经济环境和市场情况也是影响股票价格的重要因素。当宏观经济环境恶化或经济增长放缓时，市场对股票的需求可能减少，这可能导致股票价格下跌。此外，如果市场出现严重的恐慌情绪或波动性增加，投资者可能更倾向于卖出股票，进而导致股票价格下跌。英文翻译为：Secondly, macroeconomic conditions and market situations are also important factors that affect stock prices. When the macroeconomic environment worsens or economic growth slows down, the demand for stocks in the market may decrease, which may lead to a decrease in stock prices. Additionally, if there is significant panic in the market or an increase in volatility, investors may be more inclined to sell their stocks, which would further drive down stock prices.

最后，公司治理和投资者情绪也是影响股票价格的因素。如果公司的治理结构存在问题或出现重大风险事件，可能会导致投资者对公司的信心下降，进而影响股票价格。此外，投资者情绪的变化也可能导致股票价格的下跌。英文翻译为：Finally, corporate governance and investor sentiment are also factors that can affect stock prices. If there are issues with the governance structure of a company or significant risk events occur, it may lead to a decrease in investors' confidence in the company, which would then affect stock prices. Additionally, changes in investor sentiment can also lead to a decrease in stock prices.