Volume small, be caution!

Last Saturday break high, but follow up trading volume are all still small.
Possible a bearish signal.
Or a possible fake RH2S bullish(Rise High To Sell).

What's Next?
Possible development 1:
Back testing.
Backtest level might be at
1. 158-163
2. 145-150

Possible development 2:
Range trading between 165 to 185 for a while.

Let's see next development.