John,
a star (picture a cross) shows indecision in the market. Fridays trading started at a one point went down to a low point, went back up higher than the starting point, then came back down and finished at the same price that it started at. It probably represents indecision whilst waiting for an ann (and being a friday didn't help).
Hope that explains it better...
hello, I just read it back through. I'm not sure that's any clearer.