Here is today's e-mini wave chart. The market has been drifting upward today on low volume. The top of my range estimate is the 800 level (blue line). Unless volume picks up dramatically to the downside I think the low end of today's range will now be 780, not 775.
The current upwave will tell us a lot about the market's strength or weakness. I expect it to end below 800, but any higher volume strength above that level will flip me to the bull side.
The midpoint of today's range is the dashed red line. Weakness below that level will be very bearish.