I’ve received quite a few questions from friends about cryptocurrency trading terms, especially what is short and why it’s so important. Today I’ll share what I’ve understood.

First, when you get into crypto trading, you’ll encounter two basic concepts: long and short. These terms have a long history, first recorded publicly in 1852 in the Journal of Commerce. According to some sources, what is short essentially relates to the timing of the trade — because short selling usually takes less time than waiting for the price to go up.

So how does it work? When you open a long position, you’re betting that the price will rise. You buy the asset at the current price and sell when the price is higher. For example, if you believe a token currently priced at $100 will go up to $150, you just buy in and wait. The profit is the difference between the two prices.

Conversely, what is short? It’s a short position — betting that the price will fall. The method is borrowing the asset from the exchange, selling it immediately at the current price, then waiting for the price to drop and buying it back at a lower price to return. Taking Bitcoin as an example: if you believe the price will drop from $61,000 to $59,000, you borrow 1 Bitcoin, sell it at $61,000, then when the price drops, buy it back at $59,000 and return it to the exchange. The profit is $2,000 (minus borrowing fees). It sounds complicated, but in reality, all of this happens within seconds on the trading app — just a click and it’s done.

The crypto community also calls those who open long positions “bull” — because they “push” the price up. Those who short are called “bear” — because they pull the price down. From there, the terms bull market (rising market) and bear market (declining market) originate.

A commonly used strategy is hedging — risk management. For example, if you long 2 Bitcoins but want to protect yourself, you can short 1 Bitcoin. If the price rises from $30,000 to $40,000, the profit is (2-1) × $10,000 = $10,000. But if the price drops to $25,000, you only lose (2-1) × $5,000 = $5,000 instead of $10,000. This method cuts your risk in half but also halves your potential profit.

For futures contracts, these are tools that let you profit from price movements without owning the actual asset. Crypto often uses perpetual futures — contracts with no expiration date, allowing you to hold the position as long as you want. When you close the trade, you only receive the profit or loss, not the actual asset. Buying futures to go long, selling futures to go short — it’s basically the same way to profit from price increases or decreases.

Pay special attention to liquidation — closing out positions. When you trade with borrowed money (leverage), if the price moves strongly against you, your margin (collateral) may not be enough. The exchange will send a margin call — asking you to add more funds. If you don’t, your position will be automatically closed. To avoid this, you need good risk management and continuous monitoring.

Long positions are easier to understand because they’re similar to regular buying. But what is short? It’s more complex, with a harder-to-grasp logic, and prices tend to fall faster and are harder to predict than rises. Additionally, if you use leverage to maximize profits, you also maximize risks. Borrowed funds are not a “cheat code” — they come with the responsibility of constantly monitoring your margin.

In summary, what is short? It’s an opportunity to profit from falling prices, but it also involves significant risk if not managed properly. Whether long or short, futures or spot trading, the most important thing is to understand the mechanics, manage risks well, and never bet beyond your capacity. That’s why I always advise friends — learn thoroughly before jumping in, and start small.