tally and Blue Water -
You're welcome. Yes, it's time intensive finding these. And even if you find them, some may be worthless because the B/A spreads are too wide and/or there's insignificant option liquidity.
Monitoring them before taking a position is also time intensive because sometimes the IV disparity peaks as much as 24 hours before the EA or sometimes in the morning before a PM announcement. I used to use IBKR's DDE connection to Excel to do some of the heavy lifting and that was helpful.
You need charting that enables you to select a lower post earnings IV as well as time slices that graphs the P&L of the entire position the day of the EA's. Sorry, can't help you with this one.
Don't think for a minute that I've given you some secret sauce strategy to easy profits. This is usually a grind it out strategy with an occasional rock star.
There are a number of nuances to this.
If the underlying really moves up or down a lot during after hours, use the underlying to lock in some gains (you have more long legs than short). Gains sometimes disappear by the regular hours open. That also holds true for after the open because the options can have Holland Tunnel wide B/A spreads that won't narrow for some part of the morning, preventing you from trading out of the options w/o a large haircut.
When option trading resumes in the AM, sometimes near week IV craters immediately and next week's IV winds down a bit slower. In such cases you need to be decisive and grab whatever profit (or cut losses) ASAP. You dawdle, you lose.
You also need to be proficient at setting up combo orders on the fly as well as adjusting or unwinding positions incrementally so that you don't create undesirable one sided risk.
Last of all, you really need to paper trade these. There's a lot of 'feel' to them that comes from doing them. When it's hitting the fan, you can't be the deer in the headlights wondering: "Hmmm, what did Spin say? Let me go check my notes." You won't know if this idea is worth anything to you until you see the performance of a bunch of them. And sorry, no refunds are available for bad free advice!
