National Grid plc Goodwill

National Grid plc's goodwill stands at $9.4B as of March 2026. That compares with $9.5B in the prior-year period — down 1.2% year over year. Stockcircle updates this page with the newest filings so you can track how the metric evolves quarter by quarter.

National Grid plc reported $9.4B in goodwill versus $9.5B a year earlier — a 1.2% year-over-year decrease. The historical chart on this page makes it easier to see whether that move is part of a longer pattern.

That compares with $9.5B in the prior-year period — down 1.2% year over year. Sustained growth in goodwill can support a stronger franchise, while sharp declines may reflect divestitures, weaker demand, or accounting changes. Always read YoY moves with the footnotes of recent filings in mind.

The history chart shows how National Grid plc's goodwill evolved across reporting periods, while the comparison chart places NG.L next to similar companies. Use both: a rising metric that still lags peers tells a different story than a rising metric that already leads the group. Growth charts, when available, highlight acceleration or slowdown.

Yes — within Energy, goodwill is commonly used to spot outliers. National Grid plc's reading of $9.4B is a starting point; confirm whether differences come from growth, margins, accounting choices, or one-time items before treating an outlier as a buy or sell signal.