Just sitting here thinking about what yield is. In the world of investing, this term is very important, but many people still don't fully understand it.

Let's get straight to the point: what is yield? It is the return you receive from an investment, expressed as a percentage per year. Whether investing in stocks, bonds, or real estate.

The simplest way to calculate yield is: Yield = ((Current Price - Purchase Price) / Purchase Price) × 100%. That's it—nothing complicated as you might think.

There are different types of yield you should know, such as dividend yield, which is the dividends received from holding stocks; bond yield from investing in bonds; or earnings yield, which comes from a company's profit. For example, if Company A pays 10 baht in dividends per year and the stock price is 100 baht, the dividend yield would be 10%.

So, what is yield that affects returns? Many factors influence it. The type of investment plays a major role—for example, debt instruments usually offer lower returns but are less risky, while stocks tend to offer higher returns but are riskier.

Market conditions also play a role—interest rates, economic conditions, political situations—all these affect the yield we expect. The investment horizon is important too. The longer you invest, the higher the chance that the yield will increase, and risk is also a factor. Higher-risk investments need higher yields to compensate for the risk.

Talking about stock market yields: dividend yield is calculated by dividing dividends by the current stock price. If a stock costs 100 baht and pays 5 baht in dividends, the yield is 5%. Earnings yield comes from net profit per share divided by the stock price. If profit is 5 baht and the stock price is 50 baht, the yield is 10%.

I want to explain the difference between yield and return because many people confuse them. Yield is the expected return, not counting price changes. Return is the actual return received, including gains or losses from price changes.

Which type of yield offers the highest return? Honestly, there’s no single answer. It depends on your goals and the level of risk you’re willing to accept.

Assets with high returns are usually high risk. Technology stocks can offer high long-term returns but are risky. Real estate also offers good returns but requires a large capital. Mutual funds are a good option for diversification. Gold is a safe asset with moderate returns. Cryptocurrencies offer the highest returns but are very risky—suitable for those who understand the technology.

In summary, what is yield? It is an essential tool that helps us understand and manage investment returns effectively. Understanding yield allows us to choose investments aligned with our goals and risk tolerance. It’s about making your capital work hard to achieve the highest possible returns you desire.