Recently, some friends asked me what exactly "going long" and "going short" mean, so I might as well explain these two concepts thoroughly.

Let's start with going long, which is the easiest to understand. Going long means expecting the market to rise, buying at a low price, and then selling when the price goes up to make a profit from the price difference. In the spot market, as long as you buy a coin, you are already going long. For example, if you think a certain coin will increase in value in the future, and it’s currently $10 each, you buy it. When it rises to $20, you sell it, and the $10 difference is your profit. This buy-low-sell-high logic is the most straightforward, and many beginners start their trading journey by going long.

But going long also has risks. If you judge incorrectly and the coin’s price doesn’t rise but instead falls, your principal will shrink. However, in the spot market, the worst outcome is a loss; there’s no risk of liquidation.

Going short is a bit more complex. Shorting means expecting the market to decline, believing the coin’s price will fall, but you don’t hold the coin or don’t have enough of it. At this point, you can borrow coins from the exchange, sell them immediately for cash, and then buy them back after the price drops to return to the exchange, earning the difference in between.

Here’s a more intuitive example. Suppose the current coin price is $10 each, and you only have $2 in margin, but you are strongly bearish on this coin. You can pledge your $2 margin to the exchange, borrow one coin, and immediately sell it at $10. Now you have $10 cash. If the price really drops to $5, you can buy back one coin for $5 and return it to the exchange, leaving $5 profit.

But the risk here is greater. If the coin’s price doesn’t fall but instead rises to $20, you will need $20 to buy back the coin and return it to the exchange. Your $2 margin cannot withstand such a large loss, which will trigger liquidation, and your principal will be wiped out. Therefore, shorting requires more cautious risk management.

To summarize, going long is suitable for investors optimistic about the market and can be operated in the spot market with relatively manageable risks. If you want to participate in shorting or leverage your gains through margin trading, you need to use futures or contract trading, but the risks will multiply accordingly. Beginners are advised to start with spot long positions to gain experience.