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When viewing FTSE 100 shares to think about shopping for, it generally pays to look past the plain large names.
Diploma (LSE: DPLM) is a superb instance. It’s delivered a complete return of 508.8% during the last 10 years, new figures from AJ Bell present. That may have turned a £10,000 funding into £60,880. But it doesn’t get something like the eye of, say, Rolls-Royce.
The shares are so rewarding
Diploma’s a specialist distributor of technical merchandise that joined the FTSE 100 in 2023. It focuses on area of interest markets the place competitors’s restricted, utilizing each acquisitions and growth of its present portfolio to continue to grow.
It’s a superb dividend inventory, though buyers wouldn’t know by trying on the modest trailing 1.1% yield. That’s a fraction of the three.25% FTSE 100 common. But that’s not essentially a weak point.
AJ Bell factors out {that a} sky-high dividend can masks weak point elsewhere, as sceptical buyers demand larger earnings to compensate for decrease development prospects. It argues {that a} monitor document of long-term dividend development is “the true nectar for a share value”. Diploma has hiked shareholder payouts each single 12 months this millennium.
Energy of rising shareholder payouts
Over the past decade, Diploma’s raised its annual payout at a median charge of 13.3% a 12 months. This helps clarify why this comparatively low-yield inventory has outperformed so strongly. Its most up-to-date buying and selling replace, overlaying the 9 months to June, confirmed revenues up 12%. The board raised its full-year forecast to 10%.
The shares proceed to energy upwards, climbing 20% within the final 12 months. My concern is that the valuation has now run means forward of itself. The value-to-earnings ratio now stands at a dizzying 56. For context, 15 is commonly seen as honest worth. Rolls-Royce, which has grabbed all of the headlines, trades at 55 occasions. At these ranges, even a slight stumble might ship Diploma’s value decrease.
I’ve one other concern. Forecasts counsel dividend development will sluggish to round 5% a 12 months in 2025 and 2026. I think about the dividends will come via, however they received’t develop as quick. And there’s one other subject. With a market-cap of £7.25bn, Diploma will battle to develop prefer it did when it was a smaller FTSE 250 inventory.
Warning indicators
There are different dangers to weigh up. Diploma imports numerous specialist elements and might be hit by tariffs. A number of the latest power in gross sales may additionally have come from prospects constructing inventories forward of potential price will increase. If that proves non permanent, outcomes might dip.
Inventory analysts are cautious. The consensus one-year value goal’s 5,535p, implying development of simply 2.33% from right this moment. After such a robust run, that doesn’t shock me.
Diploma’s a terrific firm however I received’t take into account shopping for it at right this moment’s toppy valuation. As a substitute, I’m tempted to search for different FTSE 250 shares with the identical dividend development potential, and attempt to catch them earlier of their journey. That, I feel, is the smarter technique to hunt for the following long-term winner.

