Murray T Turtle and NoDoji,
Thanks for the tip.
The blue line is not a stock, it is a parameter that caught my attention during data mining.
See updated chart. The blue line is starting to spike up just now, but not very high yet. The spx uptrend may still have a bit room to go, but could be near its end.
This system is for swing trading, not for intraday trading, although I do have intraday data that can generate updated intraday charts.