Calls and Puts Explained: How Each Option Type Works
Call Options: The Right to Buy
When you buy a call option, you’re paying a premium for the right to purchase 100 shares at a fixed price (the strike) before the expiration date. You want the stock price to rise above your strike price by more than the premium you paid.
Call Option Example
AAPL is trading at $195. You buy a $200 call expiring in 30 days for $3.00 ($300 total).
| AAPL Price at Expiration | Option Value | Your Profit/Loss |
|---|---|---|
| $190 | $0 (expires worthless) | -$300 (lost premium) |
| $200 | $0 (at the money) | -$300 (lost premium) |
| $203 | $300 | $0 (breakeven) |
| $210 | $1,000 | +$700 |
| $220 | $2,000 | +$1,700 |
Breakeven = Strike price + Premium paid = $200 + $3 = $203. Below that, you lose money. Above that, every dollar is profit.
Put Options: The Right to Sell
When you buy a put option, you’re paying a premium for the right to sell 100 shares at the strike price. You want the stock to drop below your strike price by more than your premium cost. Puts are the primary way to profit from declining prices or to hedge existing stock positions.
Put Option Example
AAPL is trading at $195. You buy a $190 put expiring in 30 days for $4.00 ($400 total).
| AAPL Price at Expiration | Option Value | Your Profit/Loss |
|---|---|---|
| $200 | $0 (expires worthless) | -$400 (lost premium) |
| $190 | $0 (at the money) | -$400 (lost premium) |
| $186 | $400 | $0 (breakeven) |
| $180 | $1,000 | +$600 |
| $170 | $2,000 | +$1,600 |
Breakeven = Strike price – Premium paid = $190 – $4 = $186. The stock must fall below $186 for you to profit.
Calls vs. Puts: Side-by-Side Comparison
| Feature | Call Option | Put Option |
|---|---|---|
| Right to… | Buy 100 shares at strike | Sell 100 shares at strike |
| Bullish or Bearish? | Bullish (stock goes up) | Bearish (stock goes down) |
| Max Profit (buyer) | Unlimited (stock can rise indefinitely) | Strike price – Premium (stock can only fall to $0) |
| Max Loss (buyer) | Premium paid | Premium paid |
| Breakeven | Strike + Premium | Strike – Premium |
| Delta Range | 0 to +1.0 | 0 to -1.0 |
| Common Strategy | Covered call (sell), long call (buy) | Protective put (buy), cash-secured put (sell) |
The Four Basic Option Positions
Every options trade involves one of four positions. Understanding all four is essential before moving to complex strategies like iron condors or straddles.
| Position | You Pay/Receive | You Want the Stock To… | Max Risk |
|---|---|---|---|
| Long Call (buy a call) | Pay premium | Go up | Premium paid |
| Short Call (sell a call) | Receive premium | Stay below strike | Unlimited (if naked) |
| Long Put (buy a put) | Pay premium | Go down | Premium paid |
| Short Put (sell a put) | Receive premium | Stay above strike | Strike × 100 – Premium |
When to Use Calls vs. Puts
Buy calls when you have a directional bullish view and want leveraged upside with defined risk. Calls work best when you expect a significant move up in a short time frame, because time decay works against call buyers.
Buy puts when you’re bearish on a stock or want to protect an existing long position. A protective put acts like portfolio insurance — you own the stock and buy a put to cap your downside.
Sell calls when you’re willing to give up upside in exchange for income. Selling covered calls on stocks you own is one of the most popular income strategies.
Sell puts when you’re willing to buy a stock at a lower price. You collect premium while waiting, and if the stock drops to your strike, you effectively buy it at a discount.
Key Takeaways
- Calls profit when stocks rise; puts profit when stocks fall. Both cost a premium to buy.
- Buying options limits your risk to the premium paid. Selling naked options carries much higher risk.
- Call breakeven = Strike + Premium. Put breakeven = Strike – Premium.
- The four basic positions (long call, short call, long put, short put) combine to form every options strategy.
- Use calls for bullish bets and income (covered calls). Use puts for bearish bets and portfolio protection.
Frequently Asked Questions
Is it better to buy calls or puts?
Neither is inherently better — it depends on your market view. Buy calls if you think a stock will rise. Buy puts if you think it will fall or if you want to hedge a long position. Statistically, more options expire worthless than not, which is why many professionals prefer selling options rather than buying them.
Why do options expire worthless?
An option expires worthless when the stock doesn’t reach the strike price by expiration. For a call, the stock must rise above the strike. For a put, it must fall below. Out-of-the-money options have the highest expiration rates because they need the biggest stock moves to become profitable.
Can you sell a call or put before expiration?
Yes. Most options traders close their positions before expiration by selling the option back in the market. You don’t have to hold until expiration or exercise the contract. If your call gained value, you sell it for a profit. If it’s losing value, you can sell to cut your losses.
What is a naked call or put?
A naked option means you sold an option without owning the underlying stock (for calls) or without having cash set aside (for puts). Naked calls have theoretically unlimited risk because the stock can rise indefinitely. Most brokers require advanced approval and significant margin for naked option selling.
How do dividends affect calls and puts?
When a stock pays a dividend, its price drops by the dividend amount on the ex-date. This hurts call values and helps put values. If a stock pays a large dividend, in-the-money call holders may exercise early to capture the dividend, which is the main reason American-style calls are sometimes exercised before expiration.