Stock market volatility is a measure of the amount of uncertainty or risk in stocks. It can be measured by calculating the standard deviation of daily returns or the average volatility over a specified period, for example 30 days. Volatility is a key component in the pricing of options, as it influences how much an option contract costs.
Several factors drive stock prices up and down, including corporate news and economic data. For example, stronger-than-expected earnings from companies like Tesla or Microsoft may send their shares up, while disappointing inflation reports might prompt investors to sell and shift their funds into bonds or cash. Events such as wars, elections or political tensions can also spook investors and send them rushing to safety. Emotions also play a role: fear triggers panic selling and greed prompts buying frenzies. High-frequency and algorithmic trading magnifies these reactions and can amplify price movements.
While volatile markets can be stressful, long-term investors can stay the course and know that, in the long run, stocks tend to rise over time. It’s important to reduce the effects of emotion by working with a registered financial advisor and staying focused on your goals. One way to do this is to spread your investments across different regions, sectors and company sizes, as well as through strategies like dollar-cost averaging. It’s also a good idea to avoid being lured by offers of quick, risk-free gains and work with a registered investment professional.