Stock market crash : What to do and how to prepare ?

A stock market correction generally refers to a moderate, temporary market decline of about 10% to 20%, often following a strong run-up. Corrections are common and are part of the normal market cycle.

Unlike a typical bear market, which generally involves a more gradual decline in prices, a stock market crash is characterized by a steep drop—more than 20%—and by the speed of the fall. Crashes have occurred throughout the history of financial markets, and they continue to offer important lessons for the future.

For example, during the 2008–2009 financial crisis, markets experienced a major downturn that lasted for months. In 2020, at the start of the COVID-19 pandemic, major stock indices also suffered a sharp decline within a few weeks. Geopolitical tensions can also shake markets—for instance, Russia’s invasion of Ukraine in 2022 led to heightened volatility and uncertainty.

By better understanding the different types of market pullbacks and by learning from history, you can approach these periods with more perspective and be better prepared.

The stock market plays an essential role in a country’s economy because it is made up of companies across many sectors that influence factors such as employment, growth and production.

When markets pull back sharply, uncertainty can delay investment decisions and slow economic activity, which may amplify short-term volatility.

While a bull market can support economic growth, a bear market, or worse, a crash, can contribute to a significant economic contraction and sometimes a recession.

Even though the specific triggers of a crash can be complex, economists and financial experts often identify four underlying causes that, on their own or combined, can lead to a market crash.

Panic is one of the most common factors behind a crash. Shareholders fear their investments will lose value and sell to try to protect their assets.

This may include pandemics and natural disasters, but also armed conflicts, geopolitical tensions, economic sanctions and major political events; all of which increase uncertainty and can undermine investor confidence.

A problem in one industry or sector can create a ripple effect and spread across the broader economy.

Financial speculation can fuel an unsustainable bubble. When expectations don’t materialize, a correction, or even a crash, can follow.

Whether it’s a correction, a bear market or a crash, these periods can trigger strong emotions for investors. High volatility can bring fear, stress and uncertainty, and that’s normal. However, decisions made in the heat of the moment can sometimes hurt a long-term investing plan.

Understanding what’s happening in the market and keeping your investing goals in mind can help you navigate these periods with more confidence.

The possibility of a crash or a prolonged bear market is an inherent risk of investing and part of the natural market cycle.

Before a pullback happens, investors can:

• Do your research and understand what you own.
• Determine your risk tolerance.
• Diversify your portfolio.
• Invest systematically (e.g., regularly over time).
• Focus on the long term.

During a major market pullback, it’s generally recommended to:

• Try not to panic.
• Avoid impulsive selling.
• Revisit your strategy only if it no longer matches your situation or goals.
• Use available tools and resources to better understand the context.

Some investors see market pullbacks as an opportunity to review their plan while keeping in mind that short-term market moves are difficult to predict. Remember: there’s nothing wrong with seeking guidance from a financial advisor if you feel you need it, alongside your self-directed investing approach.

Market crashes, bear markets and corrections are part of the natural market cycle. While they can be unsettling in the short term, history shows that markets have demonstrated an ability to recover over longer periods.

Preparing ahead of time, proper diversification and a long-term mindset can help investors navigate volatile periods with greater confidence.

• A correction is usually a temporary pullback (often around ~10% to 20%).
• A crash is a sharper, faster drop (often over 20%) and may occur within a broader bear market.
• Triggers vary (panic, economic crises, major events, speculation), but uncertainty often amplifies moves.
• Volatility can be emotional: avoid reactive decisions and revisit your goals and time horizon.
• To prepare: diversify, know your risk tolerance, invest regularly and stay focused on the long term.