Several graphene companies stocks are on the rise, is that a positive sign for the industry?

2020 was a surprisingly good year for many graphene investors, and many stocks saw positive returns. We are following over 15 public graphene companies, and the share price of many of them appreciated nicely, especially in the last few months:

Some companies saw stellar returns -as you can see in the chart we compiled above, over four graphene companies rose over 150% in the past year, with the top performer over 900%.