Diploma PLC (DPLM.L) stock analysis

In our weekly check, Diploma PLC is graded A (A to F). Of 25 checks on debt, profit, cash flow and trend: 23 pass, warnings: 1, red flags: 1.

About Diploma PLC

Diploma PLC is an Industrials company (Industrial - Distribution) based in the United Kingdom, listed on LSE as DPLM.L.

What our checks show for DPLM.L

Red flags

• The gross margin fell by 11.9 points, to 24.8%: costs are rising faster than prices.

Warning signs

• The stock has fallen as much as 60% from a peak. Would you have held through that?

Strengths

• Net debt is only 1x a year of EBITDA: the balance sheet has room.
• Operating profit covers interest 14.8 times over.
• The net margin rose by 3.3 points over 5 years, to 12.1%.
• Operating cash flow is 1.45x net profit: the profit arrives as real cash.
• Analysts expect earnings per share to grow about 26.6% a year over the next years.
• Analysts expect the net margin to improve by 5.6 points from today's 12.1%.

Next earnings report: 2026-11-17

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Questions

What grade does Diploma PLC (DPLM.L) have?

In our weekly check, Diploma PLC is graded A (A to F). Of 25 checks on debt, profit, cash flow and trend: 23 pass, warnings: 1, red flags: 1. The grade is a risk check, not a buy or sell recommendation.

What are the main risks of DPLM.L stock?

This week's biggest flags for Diploma PLC: Gross margin falling, Deep past fall. In total 2 of 25 checks show a warning or a red flag.

What does Diploma PLC do?

Diploma PLC is an Industrials company (Industrial - Distribution) based in the United Kingdom, listed on LSE as DPLM.L.

When does Diploma PLC report earnings next?

The next earnings report is expected on 2026-11-17. We re-run the checks every week, so the grade can change after it.

The grade is a risk check, not a price forecast, and not investment advice. In our 10-year test (S&P 500, 2016-2026), stocks we graded A or B fell more than 30% 2-3 times less often than D or F, without a lower average return.

Updated 2026-10-24

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