RE:$1 in 2021?The volume might seem significant because it's a large unmber - 10M shares traded - but it doesn't represent very much in terms of dollars - only $2.5M changed hands, which is pretty low overall.
Therein lies the main problem that will hold back share price. There are a *lot* of shares that were purchased as Trevali fell from $1.5 to where it is today. As the price of the company goes up, many of those shares that were bought will be put up for sale. That'll require a lot of new buyers before we can see a real price increase.
The key price points to watch for, I think, will be $0.4 and $0.8. Those are roughly where the share price stuck for a while, before dropping.
All that said - I think that your suggestion of $1 in 2021 is a dream. I don't expect the company to go back to that point until they can demonstrate several quarters of profits, and demonstrate that they have learned how to use that money responsibly.