Check out the chart of GRD in your favourite charting package,...

Check out the chart of GRD in your favourite charting package, on a daily chart. It is a good example of an unsustainable parabolic rise that just HAS to come snapping back to the moving average. That is the time to get in if it still looks the goods, or to watch it closely in case it goes plummeting all the way through the MAs and keeps on going down.

Will need close watching this week.

I don't hold.