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Probably a good idea...

Dude, I’m in robinhood and Merrill Lynch Edge. Short answer: no. :banghead:

This ORATS looks like the way to go for data and analysis. Too involved for someone trying to get their feet under them? I'm desperate to visualize how the greeks interact for various spreads. I can model the options but the lack of an API to real time data is frustrating

Interesting... Is there "put/call parity" at work there? Having some trouble wrapping my head around this. Why would you not plot the high delta calls (or puts)?

@MrMuppet would you mind explaining the x-axis on that cool looking graph that you posted?

Too late for that!

It's funny...I know the feeling! :banghead: (I love this particular emoji)

yeah, I'm trying to figure out how to make a graph like that for myself, but I am confused on what it's showing!

Thanks man. Yeah, I suspected that I was probably partially down a rabbit hole. An interesting one, for sure! Some homework...thanks for it! I had the delta vs IV chart, but it looked boring. ;-) Though at second glance, the curves crossing certainly deserves more investigation! A...

Latest in the taking one for the (uneducated) team series. It seems that if you can model the "vol surface" for any option, you are ahead of the game. Maybe it's not so much about finding minima of the vol surface, so much as finding areas of steepest gradient? Anyway, today I manually...

OK, you blew up my brain with that last paragraph, so I will shut up to avoid spamming the board. But I do note that Cottle seems to be teaching these types of trades. Hopefully I will get an intuition as I read. I got 100 shares of HOOD and started selling CC's as soon as I could. The first...

Yeah, this all makes sense. I can't yet quantify how "vega will not compensate for the delta", but I believe you. I need to improve my understanding of vega. You are correct - I didn't do jack shit to model the change in "strip vols" when the underlying moves up or down. Do people just mine...

Back to the PMCC. I modeled one using today's end-of-day SPY data. Long: Jan 21, 408 call (123 DTE, 70 delta). Short: Oct 22, 435 call (32 DTE, 50 delta). Bootstrapped IV for B-S using a planar fit: IV = A*delta + B*DTE + C. Here's a steady 3% decline over a month. Actually slightly...

Heheh I went on amazon to buy Cottle’s book, and this one was recommended https://www.amazon.com/dp/B08BNGKKM5

Haha, I had a small oops with SPRT/GREE

Finally got some of the back-end code working for my B-S tool. Using google apps scripts and a google sheet. Beats visual basic, but if I add any more complexity, it's better to use a real language. First thing I did was sample IV for a variety of expirations and deltas. Then I fit a plane...

I do use them sometimes for IV percentile. Do you find that the for-fee features are any good?

This plot was for calls

OK, so dumb question number 10 or so. I went to barchart.com (they seem to have good, dynamically updated options chains) and looked at Sept 24 (10 DTE), Oct 15 (27 DTE), and Nov 19 (63 DTE) calls on SPY. I plot IV versus DTE and there's a clear increasing IV with DTE. There's also a clear...

The secret is to make sure mom & dad live someplace nice for the summers. Mine lived in Louisiana at that time, so no escape. I got the heck out of dodge after graduating. Though I did do two subsequent tours of duty in Houston working in the oil & gas industry. Never again, I pray