Fundamentals analysis question. Companies with High Gross margin, but low Net margin.
In analyzing the fundamentals of a company, some of them have a big difference between Gross margin and Net margin. I have seen down stocks in the Dow 30 that have Gross margin of near 70%, but their Net margin is under 10%. Large gap. I have seen others that have a Gross margin of 40% and a Net margin over 20%. Much small gap. If a person is wanting to use this information as part of their fundamental analysis when picking stocks to buy, do these difference have much significance? Does this mean some companies are run better than others or have a better business model? I posted the definitions below just so we are on the same page.
* [**Gross margin**.](https://www.google.com/search?sca_esv=d146b05616c98815&rlz=1C1VDKB_enUS1075US1075&sxsrf=AHTn8zpWKmminddEZPTGiGy8OL6hx02TYw%3A1745588164686&q=Gross+margin&sa=X&ved=2ahUKEwjVyOvTpvOMAxXKLkQIHY1fLZsQ4eYNegUIqQMQAw&mstk=AUtExfCbbKRQuiFbmLmobaZYqHh_YJmfOEK-D2eE1h5sWlHil-nxCdMMnIM2i75HhwFDOSn_px_igS7tRBpMRk3zFuvuOS1eQDAaz3_JQ-QqDf7g_nF0pJ9v4o1_VZjj8Q4vpKcswY2kLklOv6YYva7RzLAUzAzBh-ir7JTvoDsjt6EP9bsbkF_TB5rzUNruZhVGBIARi5YDPhpmEs-0CtddrQpIZ-RUbuxL-DiKJRfT77MKV-Wlb3EcxGkRxA9qPOD9MXrdCMjdhn_LcW62ZqV-Kz1z&csui=3) tells you how much profit you're making on each dollar of sales, after accounting for the cost of creating the goods or services.
* [**Net margin**](https://www.google.com/search?sca_esv=d146b05616c98815&rlz=1C1VDKB_enUS1075US1075&sxsrf=AHTn8zpWKmminddEZPTGiGy8OL6hx02TYw%3A1745588164686&q=Net+margin&sa=X&ved=2ahUKEwjVyOvTpvOMAxXKLkQIHY1fLZsQ4eYNegUIqgMQAw&mstk=AUtExfCbbKRQuiFbmLmobaZYqHh_YJmfOEK-D2eE1h5sWlHil-nxCdMMnIM2i75HhwFDOSn_px_igS7tRBpMRk3zFuvuOS1eQDAaz3_JQ-QqDf7g_nF0pJ9v4o1_VZjj8Q4vpKcswY2kLklOv6YYva7RzLAUzAzBh-ir7JTvoDsjt6EP9bsbkF_TB5rzUNruZhVGBIARi5YDPhpmEs-0CtddrQpIZ-RUbuxL-DiKJRfT77MKV-Wlb3EcxGkRxA9qPOD9MXrdCMjdhn_LcW62ZqV-Kz1z&csui=3). tells you how much profit you're making on each dollar of sales, after accounting for all costs, including both the cost of goods sold and all other expenses.
