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What is Call Option & How it Works?

Last Updated : 10 Jan, 2024
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Financial contracts known as call options grant the buyer the right, but not the obligation, to purchase a stock, bond, commodity, or other asset or security at a given price within a predetermined window of time. If the buyer exercises the call, the call seller is required to sell the asset. When the price of the underlying asset rises, the call buyer benefits. There are several reasons why share prices might rise, including good company news and acquisitions. Since the buyer usually does not execute the option, the seller benefits from the premium if the price falls below the strike price at expiration. One way to compare a call option with a put option is that the former allows the holder to sell the asset at a predetermined price to the buyer on or before the option’s expiration, while the latter does the opposite.

Geeky Takeaways:

  • A call is an option contract that grants its owner the right, but not the obligation, to purchase the related securities within a specific period and at a given price.
  • Its expiration, also known as the time to maturity, is the stated period during which the sale may be made. The specified price is known as the strike price.
  • The premium, which is the maximum amount you can lose on a call option, is the cost you pay to purchase the option.
  • Call options can be bought for trading purposes or sold to manage taxes or income.
  • In spread or combination strategies, call options can also be combined.

How do Call Options Work?

Call options provide investors the option, but not the obligation of having to buy a certain quantity of an underlying asset, like stocks, at a predefined price within a prearranged window of time. The expiration date, strike price, and underlying asset are the essential elements. In the hopes that the value of the underlying asset will increase above the strike price, the buyer of the call option pays a premium for this right. If the buyer chooses to exercise the option, the option seller accepts the premium but also takes on the responsibility of selling the asset. If the asset’s price is higher than the strike price, the buyer benefits, and the seller’s profit is only as much as the premium they were paid. The appeal of call options is their leverage, which enables investors to hold a greater position with a comparatively smaller investment. Call options provide an opportunity to potentially profit from upward market moves. Nonetheless, the dangers include the have to carefully evaluate market circumstances and timing, as well as the possibility of losses restricted to the premium paid.

What is the Expiration of Call Options?

The term “expiration” in the trading and investment industry signifies the fact that particular trading instruments are only available for a limited time. Options, futures, and futures options, for example, are only valid until their expiration date, after which they become void. The phrase “expiration date” refers to the calendar day and time at which a trading instrument ceases to trade (i.e. “expires”) and all contracts can be used or lose value. That is, while analysing a prospective option position, most investors and traders take into account not just the price but also the time before expiration. Time till expiry is often known as “days-to-expiration,” or DTE.

It is important to know that call options expiration dates are when the options contracts stop being legal. There is a limited amount of time that call options can be used, and their worth is directly related to that time. The expiration date is an important part of selling options because it affects the price and the choices that option holders and writers make.

1. Expiration Process: When an option contract expires, it either makes money (in the money) or loses value (out of the money), or the person who owns the option can decide what to do.

2. European Options vs. American Options: American call options can be used at any time before or on the expiration date, but European options can only be exercised at expiration.

3. Value That Comes From Within And Value of Time: There is a difference between the current market price of the underlying object and the strike price of the option. This is called intrinsic value. Time value is the price that shows how much the option could go up in value before it expires.

4. Option Holders Must Make a Choice: Option holders must choose whether to exercise their right to buy the underlying asset at the agreed-upon strike price.

5. Friday of the Expiration Month: In the United States, stock options usually end on the third Friday of the expiration month. If this day is a holiday, the end date is the Thursday before. It’s up to traders to decide whether to close or roll their contracts before the expiration date. When you roll, you close the current job and open a new one with a later end date.

7. Risk of Expiring Worthless: At expiration, if a call option is “out of the money,” which means that the price of the underlying asset is less than the strike price, it usually loses all of its value.

8. Options Strategies: Options traders often use different strategies to handle their positions before they end, such as selling options to close, exercising options, or letting them expire.

It is important for options traders to know when call options expire because it affects their possible profits, risks, and strategic decisions in the always-changing options market.

What Happens after Expiration?

When a call option expires in the money, it signifies that the strike price is lower than the underlying security, leading to a profit for the trader holding the contract. Put options, on the other hand, have a strike price that is greater than the underlying security’s price. This means that the contract holder will lose money.

Difference Between Long Call Options and Short Call Options

Basis

Long Call Options

Short Call Options

Position Holder Investor holds the call option. Investor sells (writes) the call option.
Objective Profit from potential upward price movement. Produce income or protect against an expected decline in the price of the fundamental asset.
Obligation No obligation to sell the underlying asset. Obligation to sell the underlying asset if the option holder chooses to exercise.
Risk and Reward Risk mitigation (the paid premium). Potential for unlimited profit as the price of the fundamental asset rises. Potential for limited profit (the premium received). Unlimited risk in the event of a substantial price increase in the fundamental asset.
Leverage Offers potential leverage, allowing control of a larger position with a smaller upfront investment. Unbounded loss potential carries a greater risk and needs adequate margin to cover potential obligations.
Market Outlook Bullish outlook on the underlying asset. Neutral to bearish outlook on the underlying asset, anticipating either a stable or declining price.
Closing the Position Call options may be sold prior to expiration in order to realize profits or reduce losses. The position may be closed by repurchasing the call option, or it may be left until expiration. If assigned, the fundamental asset must be sold.

How to Buy a Call Option?

1. Foundational Knowledge: Acquire a comprehensive understanding of the fundamentals underlying options trading, that includes important terms such as strike price, expiration date, and premium.

2. Research and Analysis: Carry out complete examination into the market conditions and the fundamental asset (e.g., stocks). Come up with an adequately informed bullish perspective.

3. Brokerage Selection: Opt for a brokerage that provides services for options trading. Ensure that the platform offers the essential tools required for order execution and analysis.

4. Initiate a Trading Account: Establish a trading account and finance it with the necessary capital.

5. Call Option Selection: Select the particular call option contract that corresponds to your trading strategy. Consider strike price, expiration date, and premium, among other factors.

6. Order Placement: Use the trading platform to make a “buy to open” request for the call option that has been chosen. Specify the quantity of contracts that you intend to obtain.

7. Management and Monitoring: Regularly oversee the performance of the option and the existing market conditions. You possess the ability to sell the option prior to its expiration in order to liquidate losses or realize gains.

How to Sell a Call Option?

1. Knowledge Check: Ensure a thorough knowledge of the selling of call options, given the potential obligations involved.

2. Market Condition Assessment: Conduct an assessment of both the market and the fundamental asset. One might consider selling a call option when holding a bearish to unbiased outlook.

3. Selected Brokerage: Select a brokerage that helps options trading and selling, if you have not done so already.

4. Establish a Trading Account: Establish a trading account or verify that a sufficient amount of funds is available in an existing account.

5. Identify the Call Option to Sell: Determine which call option contract is appropriate for sale. Take into account variables such as the strike price, expiration date, and premium.

6. Execute the Order: Employ the brokerage platform to execute a “sell to open” order relating to the selected call option. Define the quantity of contracts that you intend to sell.

7. Monitoring and Administration: Observe the performance of the option and market conditions with great care. If your forecast is true you may repurchase the option to cancel the position or allow it to expire.

How to Calculate Call Option Payoffs?

Payoffs are the gain or loss that purchasers or vendors of call options incur. Variables such as the strike price, expiration date, and premium are utilised in the calculation of call options. Even these variables aid in determining the payoffs of call options.

For call option purchasers to calculate settlement and profit, the following formulas are utilised,

Payoff = Spot Price – Strike Price

Profit = Payoff – Premium Paid

(Payoff equals the difference between the spot and strike prices)

The payoff formulas used by sellers for call options are as follows,

Payoff = Spot price – Strike Price

Profit = Payoff + Premium Paid

When Should You Buy or Sell a Call Option?

A call option is sold with the expectation that the stock’s upside potential is limited. You are disinterested with the stock’s stability or decline, provided that it remains below the strike price. An investor would choose to sell a call option if they held a view that a particular asset was destined for a decline.

Call-Buying Strategy

People who use the call-buying approach buy call options. For the option premium, they get the right to buy shares of an underlying asset at a certain price, called the strike price, on or before a certain date. Investors who think the underlying stock or security will go up in value usually use this approach. When investors buy calls, they may gain possible leverage, which lets them control a bigger position with a smaller initial investment. If the price of the underlying asset goes up above the strike price before or on the expiration date, the owner can buy shares at a price lower than what they are worth on the market right now. This makes the call option profitable. It’s important to keep in mind, though, that if the stock price doesn’t hit the strike price by the expiration date, the call option may become worthless, and the premium paid will be lost. As a speculative strategy, call-buying tries to make money when prices go up while limiting the original financial commitment.

Call Option Examples

Buying a Call Option

Selling a Call Option

Stock XYZ has a current trading price of $50 per share. You predict a price increase for the stock within the coming months.

1. Research and Analysis: You hold the belief that XYZ’s stock is set for a potential increase, with a price point of $60.

2. Opt for a Call Option: Choose a call option that possesses the following characteristics: a strike price of $55, an expiration date spanning three months, and a strike price of $55.

3. Order Placement: Execute a “buy to open” order for a single call option contract at the prevailing market premium of $3 per share (equivalent to $300 in total cost, given that a single contract typically encompasses 100 shares).

4. Monitoring: Observe the performance of the stock over the course of the upcoming months. A profitable call option is generated when XYZ’s stock price surpasses $55.

5. Result: In the event that the stock price reaches $60, for example, one can profit by exercising the call option and purchasing the shares at the strike price of $55 before selling them at the market price.

In the given scenario, the investor presently possesses 100 shares of Stock ABC, each of which is valued at $75.

You are interested in augmenting the income you receive from your current stock holdings.

1. Call Option Identification: Select a call option that possesses the following characteristics: a strike price of $80 and an expiration date of one month.

2. Order Placement: Execute a “sell to open” order for a single call option contract at the prevailing market premium, which assumes a value of $2 per share (equivalent to a total income of $200).

3. Monitoring: Observe the performance of the stock over the course of the following month. The option expires void if the stock price remains below $80; you retain the premium.

4. The buyer may exercise the option if the stock price increases above $80; in that case, you would be required to sell your shares at the strike price that was previously agreed upon. Although the premium remains yours, any potential profit you may earn is restricted to the strike price.

These examples show two different ways to look at call options: buying with the goal of making money from price increases, and selling (covered call) to make money while limiting possible gains. Before you trade options, you should always carefully consider the risks and the state of the market.

Difference Between Call Option and Put Option

Basis

Call Option

Put Option

Right Granted The right to purchase the underlying asset at a predetermined strike price. The option to sell the underlying asset at the strike price specified.
Position Holder Call buyer holds the option. Put buyer holds the option.
Objective Profit from potential upward price movement. Profit from potential downward price movement.
Obligation No obligation to buy. No obligation to sell.
Risk and Reward Limited Risk Limited Risk
Leverage Offers potential leverage, allowing control of a larger position with a smaller upfront investment. Offers potential leverage, allowing control of a larger position with a smaller upfront investment.
Market Outlook Bullish outlook Bearish outlook
Closing the Position Can sell the call option before expiration to realize profits or cut losses. Can sell the put option before expiration to realize profits or cut losses.
Premium Payment Call buyer pays a premium to the call seller. Put buyer pays a premium to the put seller.
Strike Price Importance The lower the market price compared to the strike, the more valuable the option. The higher the market price compared to the strike, the more valuable the option.

Frequently Asked Questions (FAQs)

1. What is a call option?

Answer:

A call option is a financial agreement that grants the purchaser the right, without imposing any obligation, to acquire a designated quantity of an underlying asset (e.g., equities) during a specified period of time at a prearranged price (referred to as the strike price).

2. How does a call option work?

Answer:

You pay the option vendor a premium to acquire the right to purchase the underlying asset at the strike price that has been agreed upon. This affords the possibility of profit and leverage should the asset’s price increase.

3. What is the difference between a call option and a put option?

Answer:

The right to purchase the fundamental asset is conferred by a call option, whereas the right to sell it is granted by a put option. Bullish strategies typically employ call options in anticipation of price increases, while bearish strategies utilise put options in anticipation of price decreases.

4. What is the rationale behind the purchase of a call option?

Answer:

A call option purchase is mainly driven by the desire to generate a profit from possible increases in the value of the underlying asset. This enables shareholders to acquire a more substantial stake for a reduced initial investment.

5. What is the highest allowable loss when purchasing a call option?

Answer:

A customer of call options is restricted to a maximum loss equal to the premium paid. The purchaser forfeits the premium in the event that the option expires without value or the stock price fails to attain the strike price.

6. At what period is it most advantageous to purchase a call option?

Answer:

Call options are frequently purchased by investors who hold a favourable position on the underlying asset. Moreover, they might contemplate purchasing call options as a precautionary measure against favourable developments or earnings disclosures.

7. What are the determinants that impact the valuation of a call option?

Answer:

The cost of a call option is determined by prevailing interest rates, the strike price, the duration until expiration, implied volatility, and the current stock price.



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