Key Takeaways NVIDIA posts a 12-month net profit margin of 53%, highlighting strong AI-driven profitability.MU delivers a 22.9% net profit margin, supported by higher-than-industry sales and income growth.VRT records a 10.7% net profit margin as demand for digital infrastructure boosts performance.As the new year approaches, investors should look for companies that generate strong returns after all operating and non-operating expenses are paid. Therefore, it’s better to invest in a profitable business rathe ...