Traders,
if you only trade stock and have access to futures quotes/charting, you should consider overnight or globex sessions futures trading extreme parameters in your trading. One of the clearest examples why is trading over the last 24 hours:
globexhighsOrange box indicates the highs set during Globex futures trading session on Sunday.
Now looks how significant that high was in stopping yesterdays rally within 3 ticks as well as overnight plunge to a tick!
Just another tool for your tool box, hope it helps
Vlad