Someone has always asked me how to trade options, and actually there are only two main actions: opening a position (buying to open) and closing a position (buying to close). Today, let’s talk about the difference between these two and why understanding this is crucial for traders.

Starting with the basics. An option is essentially a contract that gives you the right (but not the obligation) to buy or sell an asset at a specific price on a specific date. Is this right valuable? Yes. That’s why the seller receives a fee called a premium, and the buyer pays this fee to hold the contract.

There are two types of options. A call option gives the holder the right to buy the asset, which is a bullish bet. A put option, on the other hand, gives you the right to sell the asset, which is a bearish bet. For example, if a call option for XYZ company stock has an exercise price of $15 and expires on August 1st, and the stock price rises to $20 at expiration, you can buy at $15 and profit from the difference.

Now, the key point. What does buying to open mean? It means you purchase a brand-new option contract, creating a position that didn’t exist before. At this moment, you become the holder of the contract, owning all rights. If you buy a call to open, the market sees you betting on the asset’s price rising. Conversely, buying to open a put is a bearish bet. This action is straightforward—you’re entering the market.

But sometimes you need to exit the position. That’s where buying to close comes in. Suppose you previously sold a call option and collected the premium, but now the market movement is unfavorable to you. You need to buy an opposite contract to offset the one you sold earlier. This way, the two contracts cancel each other out, your risk is locked in, and the position is closed.

Why does this logic hold? Because there’s an intermediary called a clearinghouse. All trades go through it. You’re not directly trading with another trader but with the entire market. This means that regardless of who holds the sold contract, your debt and gains are settled with the market, not with a specific person. So, when you buy to close, the market automatically handles all offsets.

In simple terms: buying to open is entering the market, buying to close is exiting. If you want to trade options, especially complex tools like calls, it’s best to consult a professional for strategy. And don’t forget, profits from options trading are taxed as short-term capital gains.