I just realized that when starting to learn about cryptocurrency trading, the concepts of long and short are truly the foundation that everyone must understand clearly. Besides holding hold token dài hạn, most traders need to get familiar with the mindset of buying and selling positions, and that's when long and short become important.

First, I need to explain what is called a position or trading stance. It simply refers to the state in which an investor holds a certain amount of assets in the market, directly related to price fluctuations. In crypto, a position can be either buying or selling a currency pair. The most basic types are: long position (buying position) when you buy expecting the price to rise, or short position (selling position) when you short sell expecting the price to fall.

Regarding long, this is quite straightforward. When a trader goes long, they are buying a cryptocurrency pair with the expectation of selling it at a higher price. The profit from long comes from the market’s upward movement. In practice, most traders don’t put all their money in at once but divide it into smaller portions to buy at different price levels. When the price actually rises, they take partial profits and realize gains. For example, if you buy EUR/USD, you are essentially buying EUR and selling USD.

Conversely, short works differently. Traders short sell a currency with the prediction that it will decrease in value. The profit from shorting comes from the decline in price. Interestingly, when you short, you don’t need to own the currency; instead, you use margin and leverage to short sell. When the price drops, you close the short positions and make a profit. Selling EUR/USD means you are selling EUR and buying USD.

Now, the interesting part is how investor psychology shifts. If everyone simultaneously believes the price will go up, they will all pour money into long positions. When the number of long positions increases rapidly in a short period, the exchange rate will skyrocket. Similarly, if everyone shorts at the same time because they believe the price will fall, the market will plummet uncontrollably.

Long and short positions are often associated with speculation on rising and falling prices. That’s why it’s crucial to understand these concepts and, most importantly, always set a stop loss in each trade to avoid significant losses. When you open a trade by buying or selling, that’s opening a position. It ends with the opposite action. All profits and losses are calculated and converted according to the currency in your account. As long as you don’t close the trade, the profit or loss only exists on paper.

Overall, mastering the concepts of long and short is the first step for beginners in crypto to trade knowledgeably. I hope this explanation helps you better understand these two concepts. If you find it useful, share it with your friends!