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Nationwide Grid’s (LSE: NG) share value is buying and selling inside a whisker of its 23 April 12-month traded excessive of £11.03. Its present degree marks a 20% rise from its 14 January one-year traded low of £9.09.
That stated, I consider the inventory may nonetheless maintain vital worth, based mostly on my expertise as a former senior funding financial institution dealer and longtime personal investor.
So, I took a deep take a look at the core enterprise and ran the important thing numbers to see what I may discover.
The core enterprise outlook
Nationwide Grid retains the monopoly for electrical energy transmission in England and gasoline transmission throughout the UK. It gives the identical vitality wants within the northeastern US, with a deal with New York and Massachusetts.
It is because of launch its H1 fiscal-year 2025/26 outcomes on 6 November, however on 2 October it issued a pre-results replace.
As with a lot of this stuff, it didn’t go into nice element, however the overview regarded optimistic. In broad phrases, it stated H1 efficiency has been consistent with earlier forecasts.
One among these is for a compound annual progress price (CAGR) in property of about 10% to fiscal-year 2028/29. One other is for earnings per share (EPS) CAGR of 6%-8% by the identical level.
And the ultimate one is for an EPS baseline of 73.3p. The corporate expects underlying EPS progress to be stronger within the second half of this fiscal yr.
The agency moreover highlighted that the US enterprise is prone to make a better contribution to working revenue in H1 than in the identical interval final yr.
As a degree of reference, its full fiscal yr 2024/25 outcomes confirmed revenue earlier than tax rising 20% to £3.65bn. EPS rose 8% to 60p.
A key danger for the agency stays the heavy degree of government-mandated funding in energy infrastructure. Nationwide Grid reiterated within the replace that whole cumulative capital funding of round £60bn from 2024/25 to 2028/29 would proceed.
That stated, consensus analysts’ forecasts are that its earnings will improve by 11% every year to end-2028/29. These are the driving power for any agency’s share value and dividends long run.
Is the inventory undervalued?
The easiest way I’ve discovered to find out any inventory’s true price is the discounted money circulate (DCF) technique. This pinpoints the value at which any share ought to commerce, based mostly on underlying enterprise fundamentals.
The DCF evaluation signifies that Nationwide Grid shares at present commerce 10% beneath their truthful worth at £10.95.
Due to this fact, their truthful worth is £12.17.
I don’t discover this price-to-value proposition attractive, as market volatility alone may account for it.
I word as properly that the inventory additionally seems overvalued on comparative inventory measures to its friends. For instance, Nationwide Grid’s price-to-sales ratio of two.9 considerably exceeds its opponents’ common of 1.1, indicating substantial overvaluation. These comprise E.ON at 0.5, Engie at 0.6, Enel at 1.1, and Iberdrola at 2.4.
Given this very restricted value hole to its truthful worth, I can’t purchase the shares in the intervening time.
I consider there are lots of higher progress inventory and dividend share prospects at present accessible to me.

