Early Exercise of Options

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We often use strategies that involve call options around dividend ex-date. This is not the case when dividend is distributed and option holders are not entitled to it. All scenarios are very similar. The rational revolves around the time premium before the dividend and after. Understanding this rational will help you decide on exercising and predict if your sold call will be assigned. The premium is 0. This is due to the fact that the option premium is negligible.

Even if we exercise, we see that we lose the time premium, but we still lose less. Your email address will not exercising call options early published. You may use these HTML tags and attributes: Notify me of follow-up comments by email. Notify me of new posts by exercising call options early. Powered by Pinboard Theme and WordPress. Before Ex-date you should exercise the call option in 3 common scenarios: The option has almost no time value.

The option is deep in the money and delta is almost The dividend is relatively high and close to expiration All scenarios are very similar.

The first example is similar to BX position with recent dividend distribution: So in that case — If we have the cash, it is preferable to exercise. This way you take the time premium sooner and can enter the position again after ex-date.

If you are exercising call options early call, you might want to take the stock before dividend and start selling covered calls. Alternatively, you can sell the call and get back after exercising call options early. Leave a Reply Cancel reply Your email address will not be published.

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While the math behind options pricing models may seem daunting, the underlying concepts are not. The first three deservedly get most of the attention, because they have the largest effect on option prices. But it is also important to understand how dividends and interest rates affect the price of a stock option.

It is also these two variables that are crucial to understanding when to exercise options early. The Black-Scholes model The first option pricing model, the Black-Scholes model, was designed to evaluate European-style options, where early exercise is not permitted. So Black and Scholes never addressed the problem of when to exercise an option early and how much the right of early exercise is worth.

Being able to exercise an option at any time should theoretically make an American-style option more valuable than a similar European-style option, although in practice there is little difference in how you trade them.

Because stock options are American-style, and carry with them the right of early exercise, different models were developed to accurately price them. Most of these are refined versions of the Black-Scholes model, adjusted to take into account dividends and the possibility of early exercise.

To appreciate the difference this can make, you first need to understand when an option should be exercised early. The role of interest rates in determining when to sell early The short answer as to when you should exercise an option early is: That may seem obtuse, but as we go through the effect interest rates and dividends have on option prices, I will also bring in a specific example to show when this occurs.

An increase in interest rates will drive up call premiums, and cause put premiums to decrease. To understand why, you need to think about the effect of interest rates when comparing an option position to simply owning the stock. Since it is much cheaper to buy a call option than shares of the stock, the call buyer is willing to pay more for the option when rates are relatively high, since he can invest the difference in the capital required between the two positions.

Interest rates have been steadily falling in the United States, to the point where the current Fed Funds target is down to 1. With the short-term rates available to individuals of around 0.

Interest rates are the critical factor in determining whether to exercise a put option early. A stock put option becomes an early exercise candidate anytime the interest that could be earned on the proceeds from the sale of the stock at the strike price is large enough. Determining exactly when this happens is difficult, since each individual has different opportunity costs, but it does mean that early exercise for a stock put option can be optimal at any time provided the interest earned becomes sufficiently great.

Cash dividends affect option prices through their effect on the underlying stock price. Because the stock price is expected to drop by the amount of the dividend on the ex-dividend date, high cash dividends imply lower call premiums and higher put premiums.

While the stock price itself usually undergoes a single adjustment by the amount of the dividend, option prices anticipate that dividends will be paid in the weeks and months before they are announced. The dividends paid should be taken into account when calculating the theoretical price of an option and projecting your probable gain and loss when graphing a position. This applies to stock indices as well.

Dividends are critical to determining when it is optimal to exercise a stock call option early, so both buyers and sellers of call options should consider the impact of dividends. Whoever owns the stock as of the ex-dividend date receives the cash dividend, so owners of call options may exercise in-the-money options early to capture the cash dividend. That means early exercise makes sense for a call option only if the stock is expected to pay a dividend prior to expiration date.

But recent changes in the tax laws regarding dividends now mean that it may be two days before now, if the person exercising the call plans on holding the stock for 60 days to take advantage of the lower tax for dividends. Example Say you own a call option with a strike price of 90 that expires in two weeks. The call option is deep in-the-money, and should have a fair value of 10 and a delta of So the option has essentially the same characteristics as the stock.

There are three possible choices of what to do 1. Do nothing hold the option. Exercise the option early. Sell the option and buy shares of stock.

Which of these choices is best? If you hold the option, it will maintain your delta position. That is not because of any additional profit, but because you avoid a two-point loss. You must exercise the option early just to ensure you break even.

What about the third choice, selling the option and buying stock? This seems very similar to early exercise, since in both cases you are replacing the option with the stock. The decision of which to do depends on the price of the option. In this example, we said the option is trading at parity 10 so there would be no difference between exercising the option early or selling the option and buying the stock.

But options rarely trade exactly at parity. So the only time it makes sense to exercise a call option early is if the option is trading at, or below, parity, and the stock goes ex-dividend tomorrow. Summary While interest rates and dividends are not the primary factors affecting an options price, an option trader should be aware of their effects.

In fact, the primary drawback I have seen to many of the option analysis tools available is that they use a simple Black Scholes model and ignore interest rates and dividends.

You can find more valuable options trading information at www. At Connors Research, we are using it as an overlay to many of our best strategies to make them even better -- now you can, too. The Connors Group, Inc.