Diploma (LSE:DPLM) is not an obvious name for anyone hunting high income. Its Yield is below 1%, far lower than many of its FTSE 100 peers. But the specialist distributor has one of the longest records of consecutive Dividend growth in the index, which makes its next set of annual results a useful test of what a compounding payout looks like in practice.

A low yield with a long record

A data snapshot from 7 October 2026 shows an annual dividend of 62.3p per share and a latest interim payment of 19.1p. The trailing 12-month yield and the indicated yield both stand at 0.8%. For an investor who wants substantial income today, that is modest, and it says as much about the valuation the market gives Diploma as it does about the size of the payment.

The streak data are where the case becomes more interesting. Diploma has paid a dividend for 41 consecutive years and has increased it for 26 years in a row. That growth record spans several economic downturns and market shocks, which suggests a board that treats a rising dividend as a priority, though past increases offer no guarantee about future ones.

Well covered, but growth is modest

The trailing Payout Ratio of 44.8% means Earnings covered the dividend about 2.2 times. That is a comfortable margin. It leaves room to absorb a weaker period and, importantly for this company, to retain cash for reinvestment, including acquisitions.

Year-on-year dividend growth of 5.1% stands out as relatively restrained for a Business with such a solid growth reputation. It keeps the streak going, but it is not a rapid increase. It is worth noting that a low payout ratio and moderate dividend growth are two sides of the same choice: Diploma appears to retain a large share of its earnings instead of distributing them.

For a holder, the return profile therefore relies more on the growth of the business and the share price than on income. A yield of 0.8% means a dividend-focused portfolio would need substantial growth over time for Diploma to make a meaningful income contribution relative to the original outlay.

Acquisitions drive the story

Recent company news has been positive. Coverage of the half-year results in May reported that Diploma (LSE:DPLM) raised its guidance as acquisitions lifted first-half earnings. Earlier in the year, it backed its outlook after what was described as a very solid first quarter.

That Acquisition emphasis matters for dividend investors. Deals can add earnings that support further increases, but they also compete for the same cash, and they bring integration risk. The balance between those demands helps explain why the payout ratio is less than half of earnings despite a quarter-century of annual rises.

What to watch

The next significant event should be the preliminary annual results. Last year's were published in mid-November, when the company lifted its dividend. The main question is simple: will the final dividend extend the streak to a 27th year, and at what rate of growth?

Investors may also watch whether growth accelerates beyond the latest 5.1%, how the results compare with May's upgraded guidance and how much organic growth sits alongside the contribution from acquisitions. Any new deals, and how they are financed, will show how management is ranking reinvestment against distributions over the coming year.