JHX is in a confirmed uptrend but the current price action seems exhaustive. As we can see bearish candle at the top and Overbought RSI, it could pullback lower to offer a swing low.
I have two buy zones (1st Buy Zone between $42.0 - $43.50) and (2nd Buy Zone between $37.70 - $38.70), where I think price may come to test as these are previous Resistance zones or congestion zones. I would monitor price action at either of the two levels and would buy after bullish price action confirmation to ride the next swing.
Please note these are my own notes, by no means trading advice. Please do your own research before entering into any trade.