A couple of members have alluded to it but the basic problem with your strategy is that the market makers build in such a large volatility premium into the pre earnings option price that it makes it virtually impossible to do what you want to do.
Lets take a live example today. TSLA reported earnings after the close and the closing price was 143.67. The last price paid for the FEB2 143 call was $11.74 and the last price paid for the 143 put was $11.32. So if you bought one of each you paid $23.06. The Market Maker expected move was plus or minus $22.72. If you do not get the expected move you are going to lose.
TSLA is trading at $156 in the after market up around $13. So your call has an intrinsic value of $13 and your put is toast. I did buy a 115 put and a 175 call so the jury is still out on me as I was counting on at least the expected move. I bought the monthly to have a little more time and may come out OK if the faithful following of TSLA keep a crazy premium in the OTM calls.
You are not the first person to have this idea and the Market Markers make it virtually impossible for you to profit consistently from this. Sure, take DATA last Thursday. It was a $82 stock and traded at $40 after earnings so any puts on that one made you a ton and I have a friend that did have puts on it. But like one member said most of your trades will be losses and occasionally you will have a huge winner. That is a tough way to trade and most likely a long term losing result.
Lets take a live example today. TSLA reported earnings after the close and the closing price was 143.67. The last price paid for the FEB2 143 call was $11.74 and the last price paid for the 143 put was $11.32. So if you bought one of each you paid $23.06. The Market Maker expected move was plus or minus $22.72. If you do not get the expected move you are going to lose.
TSLA is trading at $156 in the after market up around $13. So your call has an intrinsic value of $13 and your put is toast. I did buy a 115 put and a 175 call so the jury is still out on me as I was counting on at least the expected move. I bought the monthly to have a little more time and may come out OK if the faithful following of TSLA keep a crazy premium in the OTM calls.
You are not the first person to have this idea and the Market Markers make it virtually impossible for you to profit consistently from this. Sure, take DATA last Thursday. It was a $82 stock and traded at $40 after earnings so any puts on that one made you a ton and I have a friend that did have puts on it. But like one member said most of your trades will be losses and occasionally you will have a huge winner. That is a tough way to trade and most likely a long term losing result.
