Here is an update to my original 'Price Stretching' study: Bear Market Momentum Internals: Examination of Moving Average 'Price Stretching'. Think of this as a companion piece to my previous post: Yet another reason why I don't think we saw 'the' top (3) and BPSPX Update
There is a lot of background information on this study, so please read the original post first.
Between the original post and this post (Secular Bear Market Projection in Historical Context) you can see how I arrived at my comparisons / prototypes / projections.
The 2000-20xx Bear Market updated Price Stretching chart: