Options
Key Takeaways
- Options are derivative contracts granting the right, but not obligation, to buy or sell an asset
- Call options give the right to buy; put options give the right to sell
- Options can be used for speculation, hedging, or generating income
- Options expire on a specific date and can lose 100% of their value
Definition
An option is a financial derivative contract that gives the buyer the right, but not the obligation, to buy or sell an underlying asset at a predetermined price (the strike price) before or on a specific expiration date. The two main types are call options (right to buy) and put options (right to sell).
Options are traded on exchanges and are used for three primary purposes: speculation (betting on price direction with leverage), hedging (protecting existing positions from adverse moves), and income generation (selling options to collect premiums, as in a covered call strategy).
The buyer of an option pays a premium to the seller (writer) for the right the contract provides. The premium is the maximum the buyer can lose, while the seller's potential loss can be much larger. This asymmetric risk profile is what makes options both powerful and dangerous.
How It Works
Each standard stock option contract represents 100 shares of the underlying stock. The option premium is quoted per share, so a $3.00 premium costs $300 per contract ($3 × 100 shares). Options are characterized by their strike price, expiration date, type (call or put), and premium.
An option's value has two components: intrinsic value (the amount the option is "in the money") and time value (the additional premium for the time remaining until expiration). A call with a $100 strike when the stock is at $110 has $10 of intrinsic value. Any premium above $10 is time value, which decays as expiration approaches (theta decay).
Options pricing is determined by the Black-Scholes model and depends on: current stock price, strike price, time to expiration, volatility of the underlying, risk-free interest rate, and dividends. The "Greeks" (delta, gamma, theta, vega, rho) measure how the option price changes with respect to each of these factors.
Example
An investor believes Apple (AAPL), currently at $190, will rise over the next two months. They buy a call option with a $195 strike price expiring in 60 days for $5.00 per share ($500 per contract). If Apple rises to $210, the option is worth at least $15 ($210 - $195), a 200% profit on the $500 investment. If Apple stays below $195, the option expires worthless and the investor loses the full $500. For comparison, buying 100 shares at $190 ($19,000) would have gained $2,000 — a larger dollar gain but only 10.5% return. The option provided 20x leverage.
Why It Matters
Options are among the most versatile financial instruments available, used by everyone from individual investors to institutional portfolio managers. They provide leverage, risk management, and income generation capabilities that are impossible with stocks alone. The options market has grown dramatically, with daily options volume now regularly exceeding stock volume.
However, options are complex and risky. Studies show that most individual options traders lose money, particularly those buying short-dated options for speculation. Options lose value over time due to theta decay, and 100% losses are common. Education, paper trading, and starting with simple strategies like covered calls are essential before trading options.
Advantages
- Provide leverage — control more shares with less capital
- Versatile strategies for bullish, bearish, and neutral outlooks
- Can protect portfolios through hedging strategies
- Defined risk for option buyers (maximum loss = premium paid)
Limitations
- Complex instruments requiring significant education
- Time decay erodes option value every day
- Can result in 100% loss of premium for buyers
- Selling naked options carries theoretically unlimited risk
Frequently Asked Questions
Related Terms
Browse more definitions in the financial terms glossary.