SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Strategies & Market Trends : The Covered Calls for Dummies Thread -- Ignore unavailable to you. Want to Upgrade?


To: FaultLine who wrote (496)5/10/2001 4:40:11 PM
From: dday  Respond to of 5205
 
Did some refresher work and had my explanation confirmed from an OCC contact.

It works like this:

I)) say you buy 1000 xyz @ 50

That cost you $50,000 (lets forget transaction costs for the sake of simplicity)
That $50,000 could have been in a t-bill earning 4% interest. (again, stock pays no dividend for sake of simplicity).
That interest for 1 day or 3 months is the cost of carry or 'time value' of the money you have tied up in the stock.
Okay, that's the first part.

II) I could also go long stock by creating a "synthetic position" using options.
That is done by selling the put and buying the call option on the same strike.
Now think about that strategy------------if the stock goes up, the call appreciates
as it is in the money If the stock goes down, I will be put the stock at the strike and have lost
the difference between the strike and where the stock is currently trading.
Result: Nearly identical to owning the stock long.

III)- The conclusion-

The difference between the put premium sold and the call premium bought must reflect the cost of carry or time value explained in part I . And that is why call premiums are higher than put premiums when a stock is on a strike price with more than 30 minutes to expiration (I know someone will bring that up <gg>).

If the put premium were higher than the call, you could put on the synthetic position at a discount
to buying the stock outright as you would be in a net credit situation with no margin interrest owed.
The pros would arb that by going long the synthetic and short the underlying locking in the spread.

Hope that helps. I can show you other examples if need be.

Regards

Bob