Your max profit would've been if you closed both the call and put when the stock is at the strike, since that's where total position delta = 0 and that's where your straddle forms its peak
Heh, thanks. I do tend to pick things up fairly quickly - but then, I've spent my entire life learning and teaching, refining critical thinking skills, and looking for challenges. I've only been trading - hell, doing anything with finance, after a lifetime of total blindness in this direction - for a little over a year, and I'm steadily producing a very solid return within my risk model and with minimal portfolio volatility. I'm cautiously proud of that while remaining aware of the huge gulf labelled "Things I Don't Know About Trading". Trading is the most complex thing I've tried to learn in my life (and I teach Data Science professionally). It makes me feel like a total idiot on a regular basis, which I suppose is a good thing in some ways - keeps my ego in check - but I'm going to keep at it for the rest of my life. And that's less about the money than it is about the continuing challenges... to me, in many ways, it's like sailing: you can never beat the ocean, but you can learn to live with it, know its moods, and not only survive but thrive there (while always, always respecting its power.) It's endlessly fascinating, and there's always more to learn. You're more than welcome, my friend. Your questions help me discover more things about trading, and reinforce what I already know.