What Is A Written Option?

Writing an options contract—often called “selling to open” or “writing”—means creating and selling an option to another trader. When you write an option, you become the seller (or “writer”) and pocket a premium upfront. In return, you take on the obligation to buy or sell the underlying asset at the option’s strike price if the buyer decides to exercise. That’s the key difference from buying an option, where you pay a premium just for the right—not the obligation—to act. As of 2026, options trading still sits at the heart of modern financial markets, used by everyone from retail traders to big institutions to manage risk or generate income.

Quick Fix Summary

What's the deal with writing options?

Writing an option puts you on the seller’s side of the contract. There are two main flavors: calls and puts. A call option writer sells someone else the right to buy the underlying stock at a set price (the strike), betting the stock won’t climb above that level. A put option writer sells someone the right to sell the stock to you at the strike, betting the stock won’t fall below it. If the market moves the wrong way, you could get assigned and end up buying or selling shares. That obligation is what makes writing options risky—especially naked (uncovered) positions where you don’t actually own the stock.

How do I actually write an option?

First things first: Make sure your brokerage account has options trading approval (usually Level 2 or higher, depending on your strategy). As of 2026, brokers like Fidelity, Schwab, and TD Ameritrade (now part of Schwab) won’t let you write options until you’re approved.

Here’s how to do it:

1. Log in to your brokerage platform (e.g., ThinkorSwim 17.1, Interactive Brokers TWS 10.20+, E*TRADE Pro 2.12).
2. Open the trade ticket:
   • ThinkorSwim: Trade > All Products > Equity Option or Index Option
   • IBKR TWS: Trade > Create Order > Option > Sell (pick “Open” to write)
   • E*TRADE Pro: Trade > Stocks/ETFs/Options > Options Chain
3. Pick your option type: Choose "Call" or "Put" based on your outlook.
4. Select "Sell to Open" to open a short position (that’s writing). Skip "Sell to Close"—that’s for closing an existing long position.
5. Enter the quantity: Standard options contracts cover 100 shares of the underlying stock (e.g., 1 contract = 100 shares).
6. Set the strike and expiration: Choose a strike price and expiration month that matches your view and risk tolerance.
7. Submit the order as a limit order to control the price you get. Market orders? Not a great idea—volatility can bite you.

Example (Writing a Covered Call):

• You own 100 shares of Apple (AAPL) at $150/share.
• You write 1 AAPL Jan 2027 $160 Call for $3.50 premium.
• Max gain: $350 (the premium) if AAPL stays below $160 at expiration.
• Max loss: Limited to your cost basis minus the premium if you get assigned and the stock drops.

What if my order doesn’t go through or I get assigned too soon?

If your order doesn’t fill or you get assigned unexpectedly, don’t panic—here’s what to do:

1. Buy to Close the Position: Repurchase the option on the open market to close your short position. Do this on the same platform:
   • ThinkorSwim: Trade > Close or reverse the sell-to-open order.
   • IBKR: Right-click the position > Close Position.
   This lets you exit early and lock in profit or cut your losses.
2. Try a Spread Strategy: Instead of writing naked options (which is risky), use spreads like the credit spread to cap your risk. For example, sell a $50 strike put and buy a $45 strike put to limit your downside.
3. Watch for Early Assignment: If you get assigned before expiration (happens often with in-the-money options near dividends), buy the stock in the open market and deliver it. Keep an eye on your account alerts and margin requirements every day.

How can I write options without blowing up my account?

Here’s how to keep risk in check when writing options:

• Stick to Covered Calls and Cash-Secured Puts: Own the stock (for calls) or have cash set aside (for puts) to avoid margin calls and surprise assignments. The U.S. Securities and Exchange Commission (SEC) suggests covered strategies for new investors.
• Keep an eye on implied volatility and earnings dates: Avoid writing options right before earnings—volatility spikes can hurt you. Use calendars or alerts to track ex-dividend and earnings dates.
• Set stop-loss or exit triggers: Use platform alerts (e.g., in ThinkorSwim: Alerts > Create Alert > Price Condition) to close losing positions before they get worse.
• Spread your bets: Don’t put all your option writing into one stock or industry. Diversify across multiple underlyings and expiration cycles.
• Check margin requirements often: Naked options eat up margin. As of 2026, brokers like Interactive Brokers follow Reg T and house margin rules, which can change fast.