Thanks @kim and @Yowster. So in case of a short straddle (chart below) the way to interpret the bottom metrics is, as I move to the left (price decreases) delta is negative (red) indicating that the trade would benefit if the stock price was to increase (move to the right, back to the area of profit) and on the other end if the price increases to much the positive blue delta indicates that the trade would benefit if the stock price was to fall (move to the left, back to the area of profit). Is this correct?
Should I give any weight to the fact that volatility (vega) is basically immaterial at the further out points (left and right)?
If you don't mind, would it be possible to know what you look at in ONE? What I mean is, what metrics/indicators, analysis you do in ONE to help you to make trading decisions?