It seems like Nikola Motors [Nasdaq: NKLA] was able to stop the bleeding of the past few months. The stock is rising again. Up to 30 million shares are now traded each day, a comparatively high volume for the company. The new-found optimism among investors seems to stem from reports about Nikola’s recent progress in meeting its targets. Construction of the Arizona factory is well underway. Then there are new production facilities being built in Ulm, Germany. And another boost for the stock came when competitor Daimler Truck announced its intention to have 5,000 hydrogen-fueled heavy-duty vehicles on the road over the next few years, with business partner Shell providing the fueling infrastructure. Sounds a lot like Nikola’s business model, the difference being that Nikola will produce its own hydrogen, and be able to keep the revenue, instead of outsourcing the task to another company.