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What Is a Call Option?


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    Highlights

  • Call options provide the buyer with the right to buy an asset at a strike price, limiting losses to the premium paid
  • Profits for call buyers occur when the underlying asset's price rises above the strike price plus premium
  • Sellers of call options can generate income from premiums but risk losses if the asset price surges
  • Call options are used for speculation, income via covered calls, and managing taxes without selling assets
Table of Contents

What Is a Call Option?

Let me explain what a call option is. It's a financial contract that gives you, the buyer, the right—but not the obligation—to buy a stock, bond, commodity, or other asset at a specified price within a set period. If you exercise it, the seller has to sell you the asset.

You profit as the buyer when the asset's price goes up. This can happen due to positive company news or acquisitions. The seller makes money from the premium if the price falls below the strike price at expiration, as you likely won't exercise it.

Compare this to a put option, which lets the holder sell the asset at a specified price on or before expiration.

Key Takeaways

A call option is a contract that lets you buy an underlying security at a specific price within a set time. That price is the strike price, and the time frame ends at expiration.

You pay a premium for the call, which is the most you can lose. Calls can be for speculation, income, or tax strategies, and you can combine them in spreads.

How Call Options Work

Options are basically bets between investors. One thinks the asset price will drop, the other that it'll rise. The asset could be a stock, bond, or commodity.

The contract gives you the choice to buy at a strike price by the expiration date. You pick from various contracts with different strikes and expiries.

You pay the premium for this right. If the asset is below the strike at expiration, you lose just the premium—that's your max loss.

Buyer Choices

As the buyer, you can hold until expiration and take delivery, or sell the contract before then at market price. If the strike is above the market price at expiry, it expires worthless—out of the money.

Long vs. Short Call Options

A long call lets you buy at a strike price later, useful for planning cheaper purchases. Traders use them on dividend stocks to catch rises before ex-dividend dates, but you get the dividend only if you exercise early.

For example, buy a long call before earnings; profits are unlimited, losses capped at premium.

A short call means you promise to sell at the strike. It's often covered if you own the stock, limiting losses. Naked short calls are riskier, with unlimited losses if the stock surges.

How To Calculate Call Option Payoffs

Payoff depends on strike, expiration, and premium. For buyers, if spot price > strike, payoff is spot minus strike; profit is that minus premium. Losses are just the premium if not exercised.

For sellers, payoff is spot minus strike, but profit is premium plus payoff—limited if covered, unlimited if naked. Understand these before trading to avoid big risks.

Using Call Options

Calls serve for income via covered calls: own the stock, sell a call, collect premium, hope it expires worthless. But if stock rises above strike, you miss upside.

For speculation, calls give big exposure cheaply; gains if stock rises, but 100% loss if worthless. Spreads can cap risks and costs.

For taxes, use calls to adjust exposure without selling shares, avoiding capital gains—just pay the premium.

Call Option Examples

Say Apple at $110 expiry, strike $100, premium $2/share. Profit: $110 - ($100 + $2) = $8/share, or $800 per contract.

If below $100, lose $200 per contract— just the premium.

Another: Own Microsoft at $108, sell $115 call for $0.37 premium. If above $115, deliver at $115, profit $7/share plus premium; if not, keep shares and premium.

Explain Like I'm 5

A call option is like reserving to buy something at a fixed price before a date. Pay a fee; if price rises, buy cheap and profit. If not, skip it and lose only the fee. It's for betting on rising stock prices without buying now.

How Do Call Options Work?

They're derivatives letting you buy shares at strike price. Exercise if market > strike to profit; expire worthless otherwise.

Why Would You Buy a Call Option?

If you're bullish on shares, calls leverage your bet—control 100 shares cheaply for potential big gains.

Is Buying a Call Bullish or Bearish?

Buying is bullish—you profit on rises. Selling is bearish—you profit if no rise, keeping premium.

The Bottom Line

Call options let you buy assets at set prices timely. Buyers profit on increases; sellers from premiums. Taxes vary by strategy.

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