Currently testing the bottom of this. If it doesn't hold, 4440 may reassert itself.
Law of 100s?. 4478 - 100 = 4378?...(j/k DB !)Why 4378?
I don't define support that way. Unless we're in a range, or approaching one, or we're in a trend channel, I just go where price leads me.
Are you interested in this or just window-shopping? If you're still working 9 to 5, you're pretty much limited to the hourly bar, in which case you'd still be in from 4522 or 4517.