Call Options Explainer
A call option is a contract that gives its buyer the right, but not the obligation, to buy an underlying asset at a stated strike price on or before the applicable expiration. The seller, or writer, accepts the matching obligation if the contract is exercised and assigned.
The buyer pays a nonrefundable premium for that right. For a standard equity option, one contract generally covers 100 shares, so a quoted premium of $2 means $200 before fees. The buyer can exercise, sell the option to close, or let it expire, subject to brokerage rules.
At expiration, a long call’s simple breakeven is the strike price plus the premium paid. Its loss is limited to the premium, while gains can grow as the underlying rises. A naked call writer faces very different economics, including potentially unlimited loss as the asset price climbs.
A call is not merely a prediction that a stock will rise. Time remaining, implied volatility, dividends, interest rates, liquidity, and the bid-ask spread all influence value. Investors should understand exercise procedures, automatic exercise policies, and the entire position before relying on leverage.
The call buyer controls a purchase right for a limited period.
The writer carries the obligation if exercise leads to assignment.
A long call can expire worthless, losing the amount paid.
The writer’s risk profile can be much larger.
Timing, volatility, and transaction costs affect the outcome.
A rising asset can still produce a losing call trade.
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