Using this experimental position I've been using (buy 100 shares, write .40 delta strangle, roll options as needed to maintain as close to that .40 delta strangle as possible), I'm starting to think I've got a pattern that will work for me.
Round 1 always starts the same - sell the .35 delta strangle. That's a put and call with the same expiration. I'm choosing to use the .35 delta over a constant distance. At least today, the .35 delta put is pretty close OTM (about $40) while the .35 delta call is more like $90 OTM. The point is that the distance isn't necessarily constant.
If share price finishes between the 2 strikes, repeat. In practice, I'd roll out when the new positions have higher theta (by 10%?) over waiting for expiration.
The evolution is what I've been thinking about, when 1 leg is looking like it will finish ITM.
When time value has decayed enough that the theta for both legs is better at a later strike (aiming for 2 weeks out), then roll the put and the call. I want to roll them out to a later date together if for no other reason, it'll help keep me sane (fewer expirations to track). Along these lines, if the share price trades far enough away from one of the legs, then I'll roll it towards the share price but keep the expiration the same (or ignore it until the other leg is ready to roll out). But it's easy to figure out what to do with a leg that's on the right side of the share price move.
For the leg that has gone ITM and maybe deep ITM, the roll parameters I've got right now are:
- receive a net credit
- target roll is the .35 delta for that option
- when the leg can't get to the .35 delta, then roll as far as possible with a small net credit; say ~$1-2/week
And when establishing the new expiration strangle, set the other leg at the .35 delta. This can yield an
inverted strangle (which it turns out, is an actual thing). Inverted strangles are more of a management technique than a position one would start with.
In this initial trade along these lines, I've had a big move upwards ($735 share price to $850+). The put leg has been loving that
.
The call leg - not so much. The original call was at $760 though (protected me from some of that big move), and has been rolled up to $770 and then $775. My prioritization for these 2 rolls was more of a balance between strike improvement and the net credit.
Couple of consequences I can see.
1) I really only need the premium from either leg to be doing really well on this trade (in my standards). So having the other leg rolling as far as possible is better prioritization. Specifically to avoid going too far ITM, making recovery difficult, impossible, and/or a bad choice financially (my approach makes this a very capital intensive strategy, so positions that are 'dead' also have a lot of dead capital tied up).
2) Going to the .40 delta each time can create some "inverted strangles". The dynamic is the put strike being higher than the call strike. That creates a window between the 2 option strikes where both finish ITM (see the link above).
I think that both in line for an ITM finish like that, given that the window isn't too extreme, is actually desirable. It means that both legs are likely to roll back to that .35 delta or at least close. At the very least, it means that the deep ITM option had the share price trade back to at least some degree, so it should be much closer ATM after the next roll.
I think that the net of all of this - when shares trade sideways of a 2 week period, then both legs will be highly profitable (recent .35 delta premiums for 2 week expiration are in the $20-30 range). Good result, and the ideal outcome.
When the shares pick a direction and just keep going...
- A >30% move in a 2 week window may leave that side unrecoverable. Probably roll it a few times just for time to see if it regresses. But the other leg will be doing really well! I just have to be ready to accept assignment, or roll for more than 2 weeks.
Heck - my first effort along these lines immediately saw a 20% move in 1 week, and that leg is recovering where recovering is still an outstanding unrealized profit each week along the way.
- A more likely 10% move in that 2 week window is pretty straightforward to manage, especially with aggressive rolls for strike management.
- And a sustained but gradual move in 1 direction becomes highly profitable. The credits will be lower than flat share trading, but the strike improvement will be outstanding should I ever make a decision to take assignment. I think of this as chasing the share price with the option strikes, and I'm happy to do that forever.
- And I can reduce the risk of a really fast move in 1 direction by using a .30 delta strangle or something like that (farther OTM to start, means the underlying move needs to be correspondingly larger), trading lower risk for lower income.
We'll see how this evolves using the current 2 positions.