Ordinarily, I trade these using a short strangle or iron condor, with the short call/put legs at or around the 1 standard deviation line for the chosen expiry, which will either be the Friday immediately after the announcement or the Friday thereafter if the announcement is too late in the week to manage the trade post-announcement if necessary.
A short strangle is an undefined risk strategy that consists of selling a put and a call with the assumption that price will remain between the strikes of the put and call for the duration of the contract.
Oct 16th Expiry 74.5 Short Put/89 Short Call Short Strangle
74% Probability of Profit
Maximum Profit: $121/contract
Buying Power Effect: Undefined
An iron condor is a defined risk strategy that consists of a long put, a short put, a short call, and long call with the assumption that price will remain between the strikes of the short put and short call for the duration of the contract.
Oct 16th Expiry 72 Long Put/74.5 Short Put/89 Short Call/91.5 Long Call Iron Condor
70% Probability of Profit
Maximum Profit: $57/contract
Buying Power Effect: $193/contract
Look to take both of these trades off at 50% max profit ... . Should price breach one side or the other of your setup, look to roll that side out to a later option expiry for credit and, if possible, for an improvement of your strike prices.