Futures Option Spreads - Delta Neutral Trading
There are many ways to trade futures option spreads. One way is
to trade spreads that can profit from time decay. You can sell
options which you believe will lose more time value than the
options you buy.
Another way is to buy and sell options based on their deltas.
Some of these trades are called delta neutral trades. Delta
neutral trades are option trades in which the total delta of all
the options is Zero. At the money options have a delta of 50.
If you buy an at the money call, you will have a delta of +50.
If you sell an at the money call, you will have a delta of -50.
If you buy an at the money put, you will have a delta of -50.
If you sell an at the money put, you will have a delta of +50.
Basically, the deltas will be determined by where you want the
market to go. Think of it this way: If you sold an at the money
call option, where would you want the market to move to? You
would like it to go lower. So, you would have a delta of -50.
If you look at most at the money options, you will find that
they are usually not at 50. That is because they are not exactly
at the money. We still refer to these as the at the money
options because they are the ones that are the closest to being
there. It might have a delta of 47 or 53.
If you purchased one at the money call and one at the money put,
you would be delta neutral. The call will have +50 deltas and
the put will have -50 deltas. The total is zero. This is a very
simple delta neutral trade.
Another delta neutral trade is a ratio back spread. An example
of this trade would be to sell an option that is at the money
and buy a greater number of out of the money options. You might
sell one call option at the money (delta -50) and buy 2 call
options out of the money (delta +25 each). You would be delta
neutral. You would want to put this on for a credit or at even.
You can also put it on for a debit but then you would care a
little about market direction.
If you put it on for a credit or even money and the market was
lower at expiration of the options, you would break even or earn
a small credit. If you put it on for a debit, you would lose the
debit amount if the market was lower at expiration of the
options. In either case, if the market went sharply higher, you
have a chance for unlimited profit, because you have purchased
more options than you sold.
Most traders teach that ratio back spreads should be done in the
far months only. This is because you have more time to be
correct with a big move. The problem that I have found is that
you are giving up too much for the time advantage. The options
you buy out of the money are not priced at an advantage compared
to the ones at the money. You can look at the theta to see how
much each option will lose per day or per week.
You can also see that in order to have a lot of time left in the
trade, the difference in strike prices between the option you
sell and the options you buy are too much. It will take a bigger
move before you have unlimited profit potential.
If you are expecting a big move, think differently than the norm
and start to look at options that have 20 -40 days left. The
options you buy compared to the options you sell, should be
priced better. Everything is in relation to something else.
So the next time you hear someone recommending the same old
ratio back spreads, take a look at the difference months to see
where the real advantage is.