Ok, I'm completely new at options theory and trading (just picked up Natenberg's book and am reading it), so please bear with me.
I was thinking about this strategy, and in my head it sounds like 'free' money. But obviously it's not free money because everyone would be doing it. So where's the fault in my logic? I can't figure it out.
So I'm looking at the quotes on CBOE for Citigroup and this is what I see.
-The last trade for the stock was at 4.55.
-The ask price for a May 4.50 Put is 0.09.
-The bid price for a May 4.50 Call is 0.13.
With these prices, why can't you just simultaneously buy 100 shares of Citi, buy 1 put for 0.09 and sell one Call for 0.13. In other words you do a short combination.
You make .04 net from the premiums and now you hold a riskless position. If Citi's share price goes up, you make money by going long 100 shares but you lose money from selling the call. If Citi goes down, your put offsets the loss.
Easy money?
Probably not? Please tell me why I am wrong.
Thanks
I was thinking about this strategy, and in my head it sounds like 'free' money. But obviously it's not free money because everyone would be doing it. So where's the fault in my logic? I can't figure it out.
So I'm looking at the quotes on CBOE for Citigroup and this is what I see.
-The last trade for the stock was at 4.55.
-The ask price for a May 4.50 Put is 0.09.
-The bid price for a May 4.50 Call is 0.13.
With these prices, why can't you just simultaneously buy 100 shares of Citi, buy 1 put for 0.09 and sell one Call for 0.13. In other words you do a short combination.
You make .04 net from the premiums and now you hold a riskless position. If Citi's share price goes up, you make money by going long 100 shares but you lose money from selling the call. If Citi goes down, your put offsets the loss.
Easy money?
Probably not? Please tell me why I am wrong.
Thanks

