Just about everyone who buys a house ends up purchasing homeowner’s insurance, right?

Other than the fact that most lenders require it, why exactly do we do this?

Most of us have relatively small odds of our house being destroyed. The chances that a fire, flood, or any other hazard will come through in a given year that would cause us to cash in on our premium are minuscule. However, we all continue to pay our insurance premiums every year.

Why do we go on paying these premiums year after year? This may seem like a foolish investment to make.

The answer, of course, is obvious: our homes are valuable to us. Because we would be devastated by any major catastrophe, most of us will happily pay someone else every year to bear this risk for us, no matter how remote the chances of loss might be.

If you employ specific options strategies to hedge your portfolio, you are essentially doing the same thing — paying someone to protect you from unforeseen risks.

Hedging is like buying insurance. You buy it to protect against unforeseen events, but you hope you never have to use it. The fact that you hold insurance helps you sleep better at night.

Let’s see how this can work with put options, using a hypothetical example.

How To Use Puts To Hedge A Position

Let’s suppose it is January, and shares of IBM (NYSE: IBM) are currently trading at exactly $100 per share. An investor who owned 100 shares of IBM and wanted to hedge against a loss until the 3rd Friday in February would likely purchase a February 100 put option contract on IBM. This means the buyer of the put would essentially be insured against a loss below $100, less the option cost.

In this example, we will assume the option cost is $3. This means that no matter what happens, the investor’s position in IBM will not be worth less than $97 ($100 – $3 option cost) by expiration in February.

In this example, we can see that the put option increases in value as the stock price declines below $100. If IBM is trading above $100 per share on the third Friday in February (the expiration date in this example), then the option will expire worthless. This means the investor will lose the entire option premium. But since the investor in this example actually owns IBM shares, this will likely be of little consequence.

However, if IBM tumbles to $90 at expiration, the investor will have lost $10 on the stock. Thankfully, this investor decided to hedge their position by purchasing a put option. And since put options rise in price as the underlying security falls, this option will have soared in value. It will now be worth $10. Subtract the cost of the option, $3, and we can see that the investor’s net position will be worth exactly $97.

Why This Matters

It’s important to note that the value of the investor’s position will remain $97 even if the price of IBM drops to zero. This illustrates how purchasing put options against stocks that you own can protect you from catastrophic losses. Yes, you will have to pay option premiums, but if the market nosedives, you’ll be glad you did.

This strategy can be advantageous if you’re looking to lock in gains after a stock has experienced a significant run-up. You may still believe the stock will appreciate more, but you might also be unwilling to let it decline below a certain point.

Sticking to our same example above, consider what would happen if IBM had skyrocketed to $100 in a short time (before the investor purchases the put option). In this case, the investor might be tempted to exit the position to lock in their gains. Although the investor could sell the stock immediately at $100, they could also use the option strategy above (purchasing a FEB 100 put option) to limit potential future losses to just $97.

If the stock shoots up to $120, the investor who sold their shares will not participate in the additional $20 gain. However, by buying a put option, they would have enjoyed the safety of locking in a minimum stock price (in this case, $97) while still participating in further gains. In this case, the investor’s net position would still be worth $117 ($120 for the stock minus $3 to purchase the option). That’s a small sacrifice to make for securing a gain.

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