My peripheral trading system generated following trade signal before close today:
"Reverse SHORT AAPL to LONG AAPL at market close on 1/29/2013"
Alert performance so far (since Nov 17th, 2012): + 14.78%. See my previous posts for alert history.
The signal was generated before the trade time indicated in the alert statement. The signals can show up (rarely) before regular market open, (rarely) during regular trading hours, or (mostly) before regular market close.