Recently, I received a very common question among new traders: what is PNL in trading? The truth is, it’s simpler than it seems, but it’s essential to understand it well if you really want to know how your trading is going.

Basically, PNL is just the difference between what you spent buying something and what you received selling it. That’s it. If that difference is positive, you made a profit. If it’s negative, you lost. That straightforward. In trading, it’s like your financial thermometer, telling you exactly how you did with each move you make.

The formula is very straightforward: sale price minus purchase price, multiplied by the amount you moved, and subtract the commissions charged by the exchange. End of story.

Let me give you a real example. Let’s say you bought 0.1 BTC when it was at $40,000, so you invested $4,000. Then you sold it at $42,000. You received $4,200. In theory, you made $200, but the exchange charges a fee, so your final positive PNL is about $198, roughly.

Now, here’s where it gets interesting. There are two types of PNL you should know. There’s unrealized, which are the gains or losses you have on open positions that you haven’t closed yet. And there’s realized, which is what you actually gained or lost when you closed the trade. They’re different because one is potential and the other is real.

There’s also ROI, which is the same but expressed as a percentage, and it’s useful for comparing trades of different sizes. And if you’re using leverage, be careful because it amplifies both your gains and your losses, so your PNL moves much faster.

Market volatility is what makes your PNL unpredictable sometimes. One day you’re in the green, the next day the price moves against you and you’re in the red. That’s why it’s important to understand that what is PNL in trading isn’t just a number; it’s a tool to learn from your moves.

Think of it like this: if you bought a coffee at $50 and sold it at $70 an hour later, your profit would be $20. That’s your PNL. If you sold it at $40, your PNL would be negative, minus $10. On the stock market, it’s exactly the same, only the numbers are bigger and everything moves faster. Sometimes you win, sometimes you lose, but the important thing is to understand what’s happening with your money in each trade.

If you want to keep learning about this, at Gate you can see your PNL in real time for each position you open. It’s good to review regularly how you’re doing to understand your trading patterns.