@Yowsteri do recall reading @Kim saying that the straddle chart was the worst case scenario. I didn’t know if that was a typo before or just something I didn’t understand. Now I realise I just didn’t understand that statement. It also helped that I read elsewhere in a recent statement that RV is calculated off the strike price and not the stock price. Therefore if the ATM strike changes, it could make a difference in the RV.
I didn’t realize previously that the return matrix used a static RV on the T day and then tracked that exact straddle (even if it is no longer atm on subsequent days) through the life, while the straddle chart only shows the pricing of the current ATM on each day and doesn’t track the movement of one straddle. Now it makes sense — if the straddle chart tracked each day’s straddle price, then you would have to have 30 straddle charts for t30.
I wrote out my thoughts so that it might help out others who may have misunderstood it like I did.
Again thanks @Yowster and @FrankTheTank. This right here is the value of this community. We aren’t really buying an alert service to use. We are buying a community that also has an alert service to show us a dozen examples a month of how to put it into action. That is much more valuable to me — to empower me to be independent rather than ‘hook’ me on a service that keeps me continually dependent on someone else.