How options trading actually works
Options trading means buying or selling contracts that give you the right—but not the obligation—to buy or sell a stock at a set price by a set date. You do not own the stock itself. Instead, you own a contract that lets you control 100 shares of stock for a smaller upfront cost than buying the shares outright. The person selling you that contract is betting the stock will move one way; you are betting it will move another.
The mechanics are straightforward: you open a brokerage account that permits options, you place an order for a call option (the right to buy) or a put option (the right to sell), money leaves your account, and the contract appears in your holdings. You then either sell that contract to someone else before it expires, exercise it to buy or sell the underlying stock, or let it expire worthless. Most traders close their positions before expiration rather than taking ownership of shares.
The cost of an options contract is called the premium. It moves based on how far away the stock price is from your contract's strike price, how much time remains until expiration, and how volatile the stock has been. A contract that is more likely to make money costs more. A contract that is unlikely to make money costs less.
Key Takeaways
- You need a brokerage account that permits options trading, and most brokers require you to answer questions about your experience and income before they turn on options access.
- A single options contract controls 100 shares of stock, so the premium you see quoted is multiplied by 100 to get your actual cost.
- Call options give you the right to buy stock at a set price; put options give you the right to sell stock at a set price.
- You can close a position by selling your contract to another trader before expiration, which is how most options trades end rather than by exercising the contract.
- The value of an options contract changes every trading day based on the stock price, time remaining, and expected volatility.
Opening an options-enabled brokerage account
Most major brokers—Fidelity, Charles Schwab, E-Trade, Interactive Brokers, TD Ameritrade, and others—permit options trading, but they do not turn it on automatically. You must request options access through your account settings or by contacting the broker directly. The broker will ask you to complete a questionnaire about your investment experience, annual income, net worth, and investment goals.
Brokers assign you an options approval level based on your answers. Level 1 typically permits only covered calls and protective puts (the safest strategies). Level 2 adds long calls and puts. Level 3 adds spreads. Level 4 adds naked calls and other advanced strategies. You can request a higher level, and the broker may grant it or ask for more information. There is no cost to request options access, and you can trade options as soon as approval comes through.
Some brokers have minimum account balances—often $2,000 to $5,000—before they permit options trading. Check your broker's specific requirements before you explore. If your broker does not permit options, you will need to open an account elsewhere; you cannot trade options through a broker that has not approved you.
Understanding call options and put options
A call option gives you the right to buy 100 shares of a stock at a specific price (the strike price) on or before a specific date (the expiration date). You buy a call when you think the stock price will rise. If the stock price goes above your strike price before expiration, your contract gains value. If the stock price stays below your strike price, your contract loses value and may expire worthless.
A put option gives you the right to sell 100 shares of a stock at a specific price on or before a specific date. You buy a put when you think the stock price will fall. If the stock price drops below your strike price before expiration, your contract gains value. If the stock price stays above your strike price, your contract loses value and may expire worthless.
In both cases, you pay the premium upfront. That premium is your maximum loss if the contract expires worthless. Your maximum gain is theoretically unlimited on a call (if the stock rises far enough) or limited on a put (the stock can only fall to zero). Most traders do not hold contracts until expiration; they sell the contract to another trader when its value has moved in their favor.
Placing your first options trade
Once your account is approved for options, you log into your broker's trading platform and search for the stock you want to trade. The platform will show you a list of available options contracts for that stock, organized by expiration date and strike price. Each row shows the call options and put options side by side, with the bid price (what buyers will pay) and the ask price (what sellers want).
You select the contract you want—for example, a call option on Apple stock with a strike price of $150 and an expiration date three weeks away. The platform shows you the current bid and ask prices. You enter an order to buy at a specific price (usually at or near the ask price) or a market order (which fills when ready at the best available price). The order goes to the market, and when someone accepts it, the contract appears in your account and the premium is deducted from your cash balance.
Remember that one contract controls 100 shares. If the ask price shows $3.50, your actual cost is $3.50 × 100 = $350, plus any commissions your broker charges. Some brokers charge per contract; others charge per trade. Check your broker's fee schedule before you place your first order.
How options prices change before expiration
An options contract's value changes every trading day based on three main factors: the stock price, the time remaining until expiration, and the stock's volatility (how much its price swings). If you buy a call option and the stock price rises, your contract becomes more valuable and you can sell it for a profit. If the stock price falls, your contract becomes less valuable.
Time decay works against you if you own an option. As the expiration date gets closer, the contract loses value even if the stock price does not move. This is especially true in the final week before expiration. If you buy an option and the stock does not move, you will lose money straightforward because time is passing. This is why most traders close their positions days or weeks before expiration rather than waiting until the last moment.
Volatility also affects price. If the stock becomes more volatile—meaning traders expect bigger price swings—options become more expensive because there is a higher chance the contract will end up in the money. If volatility drops, options become cheaper. You can check a stock's implied volatility on your broker's platform; higher numbers mean options are more expensive.
Closing a position before expiration
Most options trades end by selling the contract to another trader, not by exercising it. To close your position, you go back to your broker's platform, find the contract in your holdings, and place a sell order. You can sell at the bid price (which fills when ready) or enter a limit order at a higher price (which may or may not fill). When your sell order fills, the contract leaves your account and the proceeds go into your cash balance.
If you bought a call for $350 and sold it three days later for $500, you made a $150 profit (minus any commissions). If you sold it for $200, you lost $150. The difference between what you paid and what you sold it for is your profit or loss. You can close a position at any time during market hours, even if the contract still has weeks until expiration.
If you do not close your position and the contract expires, what happens depends on whether it is in the money or out of the money. A contract that is out of the money (worthless) straightforward expires and disappears from your account. A contract that is in the money may be automatically exercised by your broker, meaning you will either buy 100 shares (if it was a call) or have 100 shares removed from your account (if it was a put). Check your broker's policy on automatic exercise before expiration day arrives.
Calculating profit and loss on an options trade
Your profit or loss on an options trade is straightforward: the price you sold the contract for minus the price you paid for it, times 100 (since one contract controls 100 shares), minus any commissions.
| Scenario | Your Cost | Sale Price | Profit/Loss per Contract | Total (minus commissions) |
|---|---|---|---|---|
| Buy a call at $3.50, sell at $5.00 | $350 | $500 | $1.50 | $150 |
| Buy a call at $3.50, sell at $2.00 | $350 | $200 | -$1.50 | -$150 |
| Buy a put at $2.00, sell at $4.50 | $200 | $450 | $2.50 | $250 |
Your maximum loss on a contract you bought is the premium you paid. If you bought a call for $350 and it expires worthless, you lose $350. Your maximum gain on a call is theoretically unlimited (the stock can rise indefinitely). Your maximum gain on a put is limited (the stock can only fall to zero, so a put on a $50 stock with a $50 strike price can gain at most $5,000 if the stock goes to zero).
Common mistakes when starting options trading
New options traders often buy too many contracts at once, betting everything on a single stock moving in a specific direction. If the stock does not move as expected, the loss can be large. Most experienced traders risk only a small percentage of their account on each trade—often 1 to 2 percent—so that one bad trade does not wipe out months of gains.
Another common mistake is holding a contract too close to expiration. In the final days before expiration, time decay accelerates and the contract loses value rapidly even if the stock price does not move much. Closing a position a week or two before expiration, when the contract still has time value, usually results in a better outcome than waiting until the last day.
A third mistake is not understanding the bid-ask spread. When you buy a contract, you pay the ask price (higher). When you sell it, you receive the bid price (lower). The difference is the spread, and it is a cost you pay on every trade. On a thinly traded contract, the spread can be wide and eat into your profits. Sticking to popular stocks with high trading volume keeps spreads narrow.
Frequently Asked Questions
Do I need to own the stock to trade options on it?
No. You can buy a call option on a stock you do not own, betting that the price will rise. You can also buy a put option on a stock you do not own, betting that the price will fall. You only own the contract, not the stock itself, unless you exercise the contract or it is automatically exercised at expiration.
What happens if I cannot afford to buy the stock when I exercise a call?
Most traders close their call options by selling the contract before expiration, so they never exercise. If you do exercise a call and do not have enough cash to buy the 100 shares, your broker will either reject the exercise or automatically sell the shares when ready to cover the cost. Check your broker's policy. The safest approach is to close the position before expiration if you do not intend to own the stock.
Can I lose more than the premium I paid?
If you only buy options (calls or puts), your maximum loss is the premium you paid. You cannot lose more than that. If you sell options (a more advanced strategy), your losses can exceed the premium you received, which is why brokers require higher approval levels for selling.
How do I know which expiration date to choose?
Shorter expiration dates (days or weeks away) are cheaper but lose value faster due to time decay. Longer expiration dates (months away) are more expensive but give you more time for the stock to move in your favor. Most new traders start with expiration dates two to four weeks away, which balances cost against time decay.
What is the difference between American and European options?
American options can be exercised at any time before expiration. European options can only be exercised on the expiration date itself. Most stock options traded in the United States are American. The difference matters mainly to advanced traders; most people close their positions by selling the contract rather than exercising, so the distinction rarely affects your trade.