Butterfly Spreads Explained
Options Trading Basics
What Is an Option?
An option is a contract. It gives the buyer the right, but not the obligation, to buy or sell an underlying asset at a specific price on or before a certain date. Think of it like a coupon for a stock. You can pay a small fee for a coupon that lets you buy a TV for $500 within the next month. If the TV's price jumps to $700, your coupon is valuable. If the price drops to $400, you can just let the coupon expire and buy the TV at the lower market price. You only lose the small fee you paid for the coupon.
In the world of trading, the underlying asset is usually a stock, an ETF, or a commodity. The small fee for the contract is called the premium. This contract allows you to control a larger amount of stock for a fraction of the cost of buying it outright, offering both flexibility and leverage.
There are two fundamental types of options.
Call Options: Give you the right to buy an asset at a set price. You'd buy a call if you believe the asset's price is going to rise.
Put Options: Give you the right to sell an asset at a set price. You'd buy a put if you believe the asset's price is going to fall.
The Parts of a Contract
Every options contract has a few key components that define its terms. Understanding these is crucial for trading.
Strike Price
noun
The predetermined price at which the underlying asset can be bought or sold.
Expiration Date
noun
The date on which the option contract becomes void. The holder must exercise their right or sell the option before this date.
Premium
noun
The price of the option contract itself, paid by the buyer to the seller.
Let's put it all together. Imagine stock ABC is trading at $48 per share. You believe it will go up in the next month. You could buy a call option contract with:
- Strike Price: $50
- Expiration Date: One month from today
- Premium: $2 per share
Since one options contract typically represents 100 shares, the total cost (premium) for this contract would be $200 ($2 x 100). You now have the right to buy 100 shares of ABC at $50 each anytime in the next month, no matter how high the market price goes.
Where Value Comes From
The premium you pay for an option isn't just an arbitrary fee. It's determined by two sources of value: intrinsic value and time value. Together, they make up the option's price.
Intrinsic Value
noun
The value an option would have if it were exercised immediately. It's the difference between the strike price and the current stock price.
For a call option, intrinsic value exists if the stock price is above the strike price. For a put option, it exists if the stock price is below the strike price. An option's intrinsic value can never be negative; if it's not profitable to exercise, the intrinsic value is simply zero. This is called being "out-of-the-money."
Time Value
noun
The portion of an option's premium that is attributable to the amount of time remaining until the expiration of the contract.
Time value, also called extrinsic value, is essentially the price of uncertainty. It's any amount of the premium that exceeds the intrinsic value. The more time an option has until it expires, the more opportunity the stock has to move in a favorable direction, so the higher its time value. As the expiration date gets closer, time value decays, eventually reaching zero at expiration. This is known as "time decay."
Let's check your understanding of these core concepts.
An options contract gives the buyer the...
In an options contract, the fee paid by the buyer for the rights granted by the contract is called the __________.