National Grid (NGG) stock: Winston Score and insider trades

National Grid owns and operates the electricity and gas networks that move energy from power plants to homes, businesses, and hospitals. It does not generate electricity itself — it just runs the pipes and wires that carry it. The company operates major transmission networks in the United Kingdom and the northeastern United States, including New York and New England. National Grid earns money through regulated fees set by government agencies, meaning it charges utilities and energy suppliers for using its networks. Because regulators control its prices, revenue is stable and predictable, which is a key competitive advantage — no rival can simply build a competing set of power lines in the same area. The company is investing heavily to upgrade its grids to handle more renewable energy, which is its main growth driver, but rising interest rates and large capital spending requirements put pressure on returns and could strain its balance sheet over time.

Editorial rules set and reviewed by Felix Prehn, Economist and Editor. Figures are refreshed daily from Financial Modeling Prep and company filings; last refreshed 2026-10-14.