Finally my time to shine. I second NVO, but when investing in companies with insulin markets you need to take the time to investigate their other sales. A lot of companies specialise in one drug, others like the larger pharma companies have many, one tank will drop stock, one drug will spike it, regardless of how the insulin market is. Try to avoid investing ones linked to Asian markets at the time being, as some companies have plants over there and the badly constructed Chinese stocks are imploding like their regulation free factories.