After correction in hydrogen stocks, German analyst urges caution on investment Close icon Two crossed lines that form an 'X'. It indicates a way to close an interaction, or dismiss a notification. Hydrogen shares are currently suffering from sometimes significant setbacks. Robert Halver of the Baader bank sees in it the end of advance praise, which shares particularly received in 2020. The high valuations of the companies and the lack of profits are deterring investors - but the industry remains exciting in the long term. . Hydrogen stocks were among the most sought-after securities on the stock market in 2020. Companies like Nel, Ballard Power, and Fuel Cell Energy were seen as bets on a sustainable future. Share prices rose sharply and, in parallel, so did the companies' valuations. But since mid-February, things have been going rapidly downhill.