SPX Credit Spread Trader

i need help analyzing the following trade on ToS. bto xeo sept. 580/570 put. sto vix sept. 15/20 call. what i'm trying to figure out is the value of both positons if the vix were to spike to say ~ 20. there is a net credit of .10 on this trade.
 
vol analysis == you can click on the wrench at the bottom of the screen and increase or decrease volatility. Or you can select "plot lines" (at the top of the screen) and "vol step" and step thru volatility changes.
 
I am looking at this double diagonal using TOS, but the risk profile shows that there is no profit range at Sep 15.

SPX 1325/1375 Oct/Dec Call
SPX 1275/1225 Oct/Dec Put

The debit is 7.2.

Attached is the risk profile from TOS. Did I not use it properly? Is it possible for a double diagonal having no profit zone if IV doesn't change?
 

Attachments

Report on COST sep/oct 65 put:

Yesterday I felt somewhat uncomfortable when I put it on, more gamma risk than I would like to see, but it was near support and I justified that it was balancing my sp put diagonal.

COST dumpted down and loss of 15 cents, below my normal 10 stop.

I guess I made the classic mistake of watching spx chopping around, and just could not believe that COST could move down so much faster than the general market. Was dismayed to find, of all choices I could have made for my calendar, it made the most active list the day after I made the trade.


Placed QQQQ oct/sep 38 put @ 40 today.
 
Quote from damon_achey:

You're looking at +1 Date for the plot lines, change it to Expiration +1 and you'll see what you want.
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I didn't want to see the risk profile at Oct expiration. I want to see the risk profile at Sep expiration (i.e. Sep 15).
 
Quote from yip1997:

I didn't want to see the risk profile at Oct expiration. I want to see the risk profile at Sep expiration (i.e. Sep 15).
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Ah, in that case advance the date above the wrench to the desired date.

PS. TOS chat help is very good at these kinds of questions.

EDIT: I think you need to unlock your price, I'm showing a 4.30 Credit for that, not a 7.xx debit and it's probably part of your problem.
 
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