Recently, someone asked me what PNL really means in finance, and I realized that many traders still don’t have it clear. So here’s my explanation.

PNL (Profit and Loss) is basically your financial thermometer in trading. It shows you whether you made or lost money on a specific trade. It sounds simple, but it’s the most important concept you need to understand if you want to know what’s happening with your money in cryptocurrency exchanges.

The idea is straightforward: it’s the difference between what you paid for an asset and what you sold it for. If I bought Bitcoin at $40,000 and sold it at $42,000, my difference is $2,000 before fees. After deducting the platform’s fees, I end up with something like $1,980 or $1,990 in actual profit. That’s your positive PNL.

Now, what’s really important to understand about crypto finance: there are two types of PNL you need to know. There’s Unrealized PNL, which are the gains or losses you haven’t realized yet because your position is still open. And there’s Realized PNL, which is what you’ve already closed and is yours (or not, if it was a loss).

To make it clear, the formula is simple: sale price minus purchase price, multiplied by the amount of the asset, minus the fees. If the number is positive, you gained. If it’s negative, you lost. That’s as straightforward as it gets.

Think of it this way: imagine you bought a coffee for 50 pesos and then sold it for 70. Your PNL would be +20. If you sold it for 40, it would be -10. In the stock market, it’s exactly the same, only the numbers move faster and we’re usually talking about thousands of dollars instead of coffees.

What’s interesting is that your PNL is also connected to other concepts like ROI (your return percentage), margin (the collateral you put up), and leverage (that credit that allows you to trade with more money than you have). All these factors affect the final size of your profit or loss.

So if someone asks you what PNL is in finance, now you know: it’s your actual result in each trade. It’s what differentiates successful trading from ending up in the red. And honestly, understanding this concept well is what separates traders who last from those who disappear quickly.