Although the current situation for this company is not so good. But its business partners in China is growing. Yesterday, the company announced another cooperation with FuDan. After all the company is the leading companies.
Last time, you mentioned its two rivals in Taiwan. But you know. There is still uncertainty about Taiwan and Mainland. As specialist Yan Xuetong comments once the war start, Taiwan will be the only loser.
Another reason that I think high of this company, it is the company's produces. It will be increasing demand in this times. After all, the worst time for the world economy has passed.
In fact, I just don't think it's a good time to sell this share, when these good news were released. From Chart analysis, even you assume the volume on price-dropping day is from the former buyers. There is still quite a lot shares locked in investors' hands. That's why I don't think it's a good time to sell.
Btw, although I am not very familiar with the real work of these instituational players, I think they should use foundamental and technical analysis at the same time. I don't think there are a lot of people solely depending on either one.