Recently, I’ve noticed many beginners asking what closing a position means, so I thought I’d write it down to clarify for everyone. Actually, the concept of closing a position seems simple, but not many people truly understand it, and many confuse closing with selling off.

Let’s start with a plain language version. Closing a position means ending your current trading position, but here’s a key point—ending does not equal selling. If you are long, buying first and then selling, closing is selling. But if you are short, selling first and then buying back, closing is buying. Many people get stuck here, thinking closing means selling, and end up reversing the direction.

I’ve observed that there are mainly three situations in the market regarding closing positions. The first is active closing, which is when you decide the timing to exit. For example, you go long BTC with $80k, and later it rises to $100k; you want to take profits, so you manually close the position. Or you set a stop-loss point, and when the price drops to that level, the system automatically executes the close—this also counts as active closing. Any closing that follows your trading plan, regardless of how it’s done, belongs to this category.

The second is passive closing, which is forced liquidation. In derivatives trading, when your losses exceed the maintenance margin, the system intervenes to forcibly close your position, known as liquidation. For example, you use $500 in margin to go 5x long on BTC at $100k. If the price drops 10%, your loss is magnified to 50%, with a floating loss of $250, and you’re not liquidated yet. But if it drops 20%, theoretically, your loss would grow to 100%, wiping out all your margin. In practice, the system usually liquidates early when losses reach about 80%, directly recognizing a loss of $400.

The third is automatic expiration closing. Futures and options have expiration dates, and when the contract expires, the system automatically closes the position and settles the profit or loss. If you want to keep holding, you need to open a new forward contract before the current one expires—that process is called rollover.

Regarding the actual operation of closing a position, I need to remind you of some risks. Slippage risk is the most common—especially during volatile markets or low liquidity—if you want to exit at $100, but the transaction completes at $98, that’s slippage. Another more troublesome issue is being unable to close at all. When liquidity is insufficient, your order might not fill for a long time. During market crashes or circuit breakers, trading may pause, and you can’t close your position. Last year’s May 19 crash caused many exchanges to go down, and many traders got stuck. Sometimes exchanges or brokers also experience system outages, or certain products are restricted from trading, or accounts are frozen—all of which can prevent closing.

So, when should you close a position? There’s no absolute answer; it depends entirely on your trading strategy. Common reasons to close include: one, reaching your target price—if you plan to sell at $100 and the price hits that, don’t hesitate. Two, following your trading plan’s stop-loss—if the market turns against you, strictly execute the stop-loss to prevent larger losses. Three, changes in market environment—if major news or a global stock market crash occurs, it’s wise to close first and observe, then consider re-entering once the trend is clearer.

Honestly, in trading, the real key to making money isn’t just “knowing how to enter,” but “knowing how to close.” Many find it easy to enter but difficult to exit. Whether you can close, when to close, and how to manage risk are the critical factors that determine whether you can stand firm in the market. Ultimately, what is closing a position? It’s the core of risk management. Master this, and you’ll be able to survive longer in trading.