hissho said:
thanks again Wayne
May i ask why "for ATM credit spreads, risk/reward is better, and adjusting is easier"?
cheers
hissho
OK, have a look at the image below. The red diagram is an OTM bull put spread (i.e. both options OTM. The blue diagram is an ATM spread (i.e. one option ITM, one option OTM... in other words the current price is between the strikes.)
Note: For the ATM spread, I would prefer to use the bull call version, so-as not to have a short ITM put.
Now the thing to remember is that there are always trade offs. The ATM version has better risk/reward (assuming that the spread was left to expiry and there were no adjustments), that is obvious. But it is at a cost of lower probabilty. The OTM bp spread has a better chance of success, but lower possible profit and higher possible loss.
But when it comes to adjusting...supposing you are thinking to yourself "%$#@ I've got this wrong, the stock is going to tank". With the ATM spread, you can easily morph the diagram to a put backspread with a reasonable ratio, and still have profitability to the upside. To do this with the OTM spread you would have to buy a motza full of puts probably at the expense of any profitability to the upside.
That is just one example. But you can fool around with your payoff diagrams a lot more with ATM spreads. Possibilities are butterflies with embedded diagonals, slingshots (essentially a butterfly with one wing with more long options)
But to my mind the OTM bull put is for when you are *sure* there is strong support above your strikes. At the moment though, I don't think any support is particularly strong.
Cheers