Recently, I've been looking into foreign exchange investment-related topics and found that many people still have quite a few misconceptions about this area. In fact, buying and selling foreign currencies isn't that complicated; the key is to understand what you want to profit from—interest rate differentials or exchange rate differences.

For Taiwanese people, investing in foreign currencies has become routine, mainly because local interest rates are too low. The US dollar, Australian dollar, and Japanese yen are popular choices, but each currency has very different characteristics. From my experience, beginners should start with policy currencies (USD, EUR) and commodity currencies (AUD, CAD), as these two categories are easier to grasp.

There are mainly three ways to invest in foreign exchange. Fixed deposits are the safest but offer low returns, suitable for conservative investors. Funds are more flexible, allowing entry and exit at any time, with interest rates between savings accounts and fixed deposits. Margin trading involves high leverage and risk, requiring some experience before attempting. I recommend beginners try fixed deposits or funds first and avoid leverage at the start.

Exchange rate fluctuations are the core risk in foreign currency investments. Factors like inflation, interest rates, political stability, and trade conditions all influence this. I once made a mistake—earning interest but losing on exchange rate differences. For example, I exchanged 33 TWD for 1 USD, but when the exchange rate dropped to 30 TWD, even earning 5% interest was meaningless. So, it's essential to monitor both interest rate differentials and exchange rate movements simultaneously.

Recently, I saw the euro against the US dollar reaching a four-year high, driven by the Federal Reserve cutting rates while the European Central Bank remains steady. The situation with the Japanese yen is more complex; the narrowing of the US-Japan interest rate gap suggests short-term volatility. The British pound has strengthened mainly because the US dollar is weak, not because the UK’s fundamentals have improved. The Swiss franc remains popular as a safe-haven asset, especially during economic uncertainty.

I think there are several key points worth sharing about forex trading. First, avoid trading currencies you don’t understand; the most traded pairs are still the major currencies. Second, always pay attention to exchange rate movements and international news—websites like CNBC and Bloomberg are must-reads. Diversification is important; don’t put all your eggs in one basket.

If you want to trade forex on margin, make sure to set stop-loss and take-profit orders. I’ve seen too many people blow up their accounts because they didn’t manage risk properly. Entry timing is also crucial—avoid chasing highs or selling lows; wait for a clear trend to form before entering. The simplest method is to watch the 5-minute or 30-minute charts and wait for a definite trend to emerge.

In essence, forex trading is about “buy low, sell high” or “sell high, buy low,” allowing for two-way trading and more opportunities. But the prerequisite is thorough research—analyzing monetary policies, interest rate trends, and the economic fundamentals of countries. Develop a trading strategy that suits you, and decide on leverage based on your risk tolerance—I recommend beginners not to exceed 30 times.

Finally, I want to remind you that any investment strategy needs to be tested through practice. If the platform offers a demo account, practice with virtual funds for a while before using real money. The entry barrier for forex is indeed low, but to make real profits, it still takes time and patience.