Quote from matgallis:
Hey all,
why might the option be exercised early, odds of early exercise even with the stock being so far out and so deep ITM, and any noteable suggestions about early exercise. Like I said, I need/wish to hold close to expiration.
Thanks all
1) As you know you have no control. The decision to exercise rests with the option owner. Thus, you should be able to hold all the way to expiration, but there is nothing you can do about it.
Despite one responders suggestion to the contrary, there is NOTHING you can do to change your chances of being assigned.
2) If the option is far out of the money (you did ask about this) there is absolutely zero chance of being assigned. The only exception: If expiration arrives and the option is OTM by a penny, it's possible, but unlikely you will be assigned an exercise notice.
3) The chances of being assigned an exercise notice on a CALL option that is deep ITM is far less than the possibility of being assigned on a PUT option that is deep ITM
4) With lots of time remaining, there is little chance you will be assigned. Period.
5) As time to expiration decreases, the chances of being assigned increase.
6) Odds? Low.
Why would anyone exercise a call option: To collect a big dividend. But, when the dividend is collected, the option exerciser owns the stock, and if he carries that position to expiration, must pay interest . that's known as the 'cost to carry.' Most of the time that cost to carry is so high that it would be stupid to exercise the call (and then be subject to downside risk).
Why would anyone exercise a put option: If the put owner also owns stock, then the interest cost of carrying the stock plus the long option may become significant when the put is DITM. If it's costly to carry, and if the put is deep enough ITM so that the put owner has no realistic expectation that the stock will ever move past the strike (before expiration), it's not a bad idea to exercise and sacrifice the cost of paying that interest.
How can you tell if this is likely: If the call option with the same strike and expiration date as the put can be purchased for less than the cost of carry, the intelligent investor buys the call and exercises the put.
Tips: I have none. If you anticipate an exercise may be imminent because of a dividend or the cost of carry, you can roll the option you sold to a longer term option.
Mark
http://blog.mdwoptions.com/options_for_rookies/