Quote from ElectricSavant:
DB..
The opening high was from 6:30...what is that other horizontal line drawn between the times of 7:50 to 8:45?
Sorry. That's the opening low. Two bars later it seemed to break, but pulled back immediately to resume the advance. Therefore, I left the line where it had been.
These make a little more sense when they're drawn in real-time. Which is why drawing trendlines in hindsight is usually misleading.
--Db