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What Is Sell To Close (STC) In Options Trading?

Learning what Sell to Close is in options trading is crucial for managing positions effectively. Every trader, whether beginner or experienced, must know how to strategically exit a trade. Sell to Close (STC) is the order type used to close an existing long options position, whether it's to lock in gains, minimize losses, or free up capital for other trades.
For those new to options trading, selling an option they initially bought may seem counterintuitive. But think of it as completing the trade—if you enter a position by buying an option, you eventually need to exit by selling it.
This article will walk you through the ins and outs of Sell to Close, explaining its importance, how it works, and when to use it effectively.
How Sell To Close Works
Once you've opened an options position, you’ll eventually need to decide how to exit. Sell to Close is the go-to order to offload an option you previously purchased.
Whether you're looking to cash in on a profitable move or minimize losses before expiration, understanding how this order functions is key to navigating options trading successfully.
When a trader places a Sell to Close order, they effectively sell an options contract they already own to another buyer in the market. The outcome depends on the difference between the original purchase price (premium paid) and the selling price of the option.
- If the option is worth more than the original purchase price: The trader makes a profit by selling it at a higher price.
- If the option is worth less than the original purchase price: The trader realizes a loss but exits the position before expiration to recover some value.
Sell to Close is commonly used by traders who do not wish to exercise their options but instead want to trade them for potential gains.
Types Of Sell To Close Transactions
Different options traders use Sell to Close for various reasons, depending on their market outlook and strategy.
Selling Call Options (Closing A Long Call Position)
Scenario: A trader buys a call option expecting the price of the underlying asset to rise. If the asset's price increases, they decide to sell to close the option, securing a profit. However, if the price declines, they might still sell to minimize their losses before expiration. The goal is to exit the position while recovering as much value as possible, maximizing the trade's potential, regardless of market movements.
Selling Put Options (Closing A Long Put Position)
Scenario: A trader purchases a put option, anticipating that the price of the underlying asset will decline. If the asset’s price drops as expected, the trader can sell to close the option, securing a profit from the price movement. However, if the asset’s price unexpectedly rises, they may choose to sell the option to cut their losses before it declines further in value. The main objective is to exit the trade efficiently, maximizing potential returns or minimizing financial setbacks based on market conditions.
Strategic Applications Of Sell To Close Orders

Selling to close isn't just about getting out of a trade—it’s a powerful tool that helps traders fine-tune their portfolios. Whether you're locking in profits, adjusting risk exposure, or freeing up capital for new opportunities, using this order type strategically can provide a significant advantage.
Sell to Close orders are commonly used in various trading strategies, including:
- Profit-Taking: Traders sell to close when their options have gained value, and they want to secure profits before expiration.
- Risk Management: If market conditions change unfavorably, traders sell to close to minimize losses.
- Portfolio Liquidity: Closing an options position frees up capital, allowing traders to deploy it into new opportunities.
Sell To Close Vs. Other Order Types
With multiple order types available, it can be easy to mix them up, especially if you’re new to options trading. Sell to Close specifically deals with closing long positions, but how does it compare to other options trading orders? Let’s break it down so you can make the right choice for your trades.
- Buy to Open (BTO): Initiates a new long position in an options contract.
- Sell to Open (STO): Initiates a new short position in an options contract.
- Buy to Close (BTC): Closes an existing short position in an options contract.
Practical Example Of A Sell To Close Order
Seeing Sell to Close in action makes it much easier to understand. Let’s walk through a common scenario where a trader uses this order to lock in profits before the option expires.
Suppose a trader buys a call option for Company XYZ at a premium of $5 per share, with a strike price of $50. Over time, the stock price rises, and the option's value increases to $10 per share, offering the trader an opportunity to sell for a profit. For example:
- If the stock price continues rising: The trader might regret exiting too soon, but they have secured their gains.
- If the stock price falls: The trader has successfully locked in profits before the decline.
The trader places a Sell to Close order to sell the option at $10, securing a profit of $5 per share.
Risks And Considerations

Like any trading decision, using Sell to Close comes with its own set of risks. Knowing these ahead of time can help you make smarter, more informed choices and avoid costly mistakes.
Before using Sell to Close orders, traders should be aware of potential risks and considerations:
- Market Fluctuations: Options prices change rapidly, and delaying a Sell to Close order can impact profits.
- Liquidity Issues: Some options contracts may have low trading volume, making it harder to find a buyer at a desirable price.
- Time Decay: Options lose value as expiration approaches, so waiting too long to sell can significantly reduce potential returns.
Conclusion About Sell To Close In Options Trading
Understanding the benefits of Sell to Close is crucial for traders, as it is an essential tool for effectively managing positions.
Whether securing profits, mitigating losses, or freeing up capital, understanding how and when to use this order type can significantly impact trading success.
For those looking to expand their expertise in options trading, sign up for our Options Trading Masterclass. Our free class provides in-depth insights and practical guidance to help traders develop successful strategies.
To learn more about our courses, visit Next Level Academy.
Frequently Asked Questions About Sell To Close In Options Trading
How Is Sell To Close Different From Buy To Open?
Buy to Open starts a long position by purchasing an options contract, while Sell to Close exits that position by selling the contract.
Can I Use Sell To Close For Both Calls And Puts?
Yes, Sell to Close applies to both call and put options when closing a long position.
What Happens If I Don’t Use Sell To Close Before Expiration?
If an option expires in the money and is not sold or exercised, it may be automatically exercised. If it expires out of the money, it becomes worthless.
When Should I Consider Using Sell To Close?
Traders use Sell to Close to take profits, cut losses, or reallocate capital to other trades.