Have a look at their IPO prospectus. Until they built their plant in 2018 they were selling at below COGS. But this is mostly a scale problem, which is why the

Have a look at their IPO prospectus. Until they built their plant in 2018 they were selling at below COGS. But this is mostly a scale problem, which is why the stock is still performing well, as they are growing so fast the market is confident they will fix the cost problem over time.