Ballard power systems is one of the positions that I have spotted as having the most potential. From March to April (2019) it has seen a huge drop of about 18%. In addition, it traded sideways from the 12th to the 21st (of March). Although they experienced this huge drop, in the month of April, the stock was up 22%. This month (May 2019), Ballard has developed a Next-gen fuel cell module which they announced would be used in freight trucks in a Canadian hydrogen project as well as 20 busses in London. These contracts can be seen to be the reason that the stock is up so far in May. The MACD has also shown a strong buy signal on the 25th of march which has kept moving in a bullish pattern. Furthermore, the RSI is also on an upward trend. I have roughly identified a support line (purple) that I believe could serve as a strong indicator as the stock has bounced up from it last month and a few weeks into the month of May. I have also identified the blue line as a resistance point. I took into account past highs from the last month that did not break through. This stock would be a viable option to keep for the long term as the trend over the last couple months has continued upwards.