I just saw someone ask how to invest during a bear market, and I think this is a topic worth discussing in detail.

Actually, bear markets are not as scary as they seem; the key is to understand what they are, how to identify them, and how to respond. In simple terms, a bear market is when stock prices fall more than 20% from their highs, and this decline can last several months or even years. Conversely, a rise of over 20% is called a bull market.

I notice many people tend to confuse bear markets with market corrections. In fact, corrections are short-term pullbacks of 10-20%, while bear markets are longer-term, systemic downturns. This distinction is very important because the mindset required is completely different.

Looking at history can make this clear. During the 2008 financial crisis, the Dow Jones dropped 53%, taking more than five years to recover to previous highs. The 2020 pandemic, however, only saw a one-month dip before rebounding quickly, thanks to rapid quantitative easing by central banks worldwide. The recent 2022 bear market was caused by aggressive rate hikes from the Federal Reserve, the Russia-Ukraine war, and supply chain disruptions, with a deep decline as well.

Bear markets usually share a few common features. First, economic recession and rising unemployment; second, excessive asset bubbles; third, market confidence collapse. When consumers start hoarding cash, companies cut back on spending, and investors sell assets, these forces together drive stock prices down sharply. There are also financial risks or geopolitical shocks, such as bank failures, wars, or energy crises, which can trigger a bear market.

So, how should you invest when a bear market hits? I’ll summarize a few ideas.

First and foremost, keep enough cash on hand and reduce leverage. Stocks with high P/E ratios and overhyped valuations tend to fall the hardest during bear markets, so it’s wise to cut down on these holdings. During this period, focus on defensive sectors like healthcare and consumer staples—areas relatively resistant to economic downturns.

Second, you can select high-quality stocks that have fallen sharply but possess a moat. The key is to see if the company's competitive advantage can be sustained for more than three years. If you're unsure, investing in broad market ETFs is also a good choice; they tend to recover when the economy improves.

Another point many overlook is that bear markets are actually good opportunities for short selling. Using derivatives like CFDs to short the market can profit from declines. Many trading platforms now offer demo accounts for beginners to practice, which is a great learning opportunity.

Lastly, be aware of bear market rebounds. During a bear market decline, there are often rebounds lasting days or even weeks, with gains exceeding 5%, which can easily mislead people into thinking a bull market has arrived. However, unless the market rises more than 20% continuously and exits the bear phase, these are just rebounds. Indicators like the proportion of stocks hitting new highs and moving average positions can help judge these movements.

Ultimately, a bear market tests investors’ patience and discipline. Protect your assets, strictly set stop-loss and take-profit levels, and adjust your mindset. A bear market is not the end of the world but an opportunity to rebalance. Both bulls and bears can profit—what matters is how you respond.