Lawrence D. Cavanagh

Hedge Your Portfolio With Bear Spreads

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This article originally appeared on The Options Insider Web site.

I am going to show how you can hedge your equity portfolio with a bear spread. This particular hedge is especially attractive in times when the demand for nominally cheap insurance drives up the price of lower strike puts.

The Basic Bear Spread

A basic bear spread consists of buying a higher strike option (call or put -- but not calls and puts in the same spread) and selling another call or put with the same expiration but with a lower strike price.

Such a spread constructed with puts is called a bear put spread, while one constructed with calls is called a bear call spread. When you create a bear put spread, you pay a net debit of premium since you are buying the (higher strike) higher premium put and selling the (lower strike) lower premium put.

When you create a bear call spread, you receive a net credit of premium because you are selling the (lower strike) higher premium call and buying the (higher strike) lower premium call.

Tailoring Your Insurance

As we often stress, options are insurance. When you hedge with a bear spread, you are buying insurance with the option purchased and selling insurance with the option sold. In effect, you are capping off your coverage beyond a certain level of possible losses in the stock. (Similar caps in coverage exist in many home, health and auto insurance policies.)

Does it make sense to cap your insurance? Often it does, provided you believe that, over the life of your hedge, the risk is limited. For instance, if the stock is trading at $20 and you have reason to believe that that the stock might decline to $15 but no lower, then it makes a lot more sense to buy a $20 put and then sell one with a strike price of $15 then it does to buy a put with a strike price of $15.

If you had bought the $15 put and the stock had fallen to that level, then you would reap no insurance benefit. All too often, investors make the mistake of buying nominally cheap insurance that will never really protect them. It is much more effective to insure your risk in accordance with your reasonable expectations of what the risks might be.