Thanks NeilB that explains a lot. I am really new to this and just enjoy seeing things change up/down better for worse ! It’s only really for fun (everyone roll your eyes at me being a newbie just for fun). I only invest what I can afford to loose and intend to hold stock for a long time so in reality this is not a huge problem or a big loss. I like learning about the market and the link you shared was perfect for explaining what I now see is a daft “beginners” question.
Hope everyone does well with this stock, I just back stocks I believe in and hydrogen is one of those !