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Diploma PLC DPLM.L

GB · London Stock Exchange · XLON · stock · Industrials · website

Diploma PLC statistics & valuation

Market cap£9.9B
P / E53.4×
P / S6.5×
P / B10.0×
P / FCF39.0×
Dividend yield0.82%
Net margin12.1%
Return on equity18.7%
FCF margin16.6%
Net debt£383.2M
Enterprise value USD$13.8B
Earnings yield EBIT/EV2.8%
Return on capital18.9%
Graham number -99.8%£15.10

Multiples are price-derived and refreshed daily; everything else from the latest financial reports. The Graham number is Benjamin Graham's rough maximum fair value (£15.10); a green figure means the price is below it.

Profitability & efficiency

Net margin (%)
9.40% 9.80% 9.50% 12.10% 2022202320242025
Gross margin (%)
14.20% 45.20% 46.10% 46.30% 2022202320242025
Operating margin (%)
14.20% 15.50% 15.20% 18.70% 2022202320242025
Return on equity (%)
14.30% 13.10% 14.60% 18.70% 2022202320242025
Shares outstanding
134.1M 134.1M 134.1M 134.1M 2022202320242025
Net debt (£)
£398.0M £334.9M £496.6M £383.2M 2022202320242025
Share buybacks (£)
£0 2022202320242025
Return on assets (%)
6.90% 7.40% 7.30% 10.20% 2022202320242025
Free cash flow margin (%)
10.80% 13.80% 13.10% 16.60% 2022202320242025
Debt / equity (×)
0.66× 0.44× 0.62× 0.47× 2022202320242025
EPS (£)
£0.76 £0.90 £0.96 £1.37 2022202320242025

Margins and returns computed from annual filings. Falling shares outstanding = buybacks; rising = dilution. Net debt = debt − cash (negative = net cash).

P / E vs its own history

Diploma PLC trades at about 5364.2× earnings — above its 10-year norm (10-year range 3143.8×–4430.8×, median 4085.9×).

3143.8× 5364.2×

Shaded band = 10-year range (3143.8×–4430.8×); dot = today's 5364.2×.

Historical P/E = month-end price near each fiscal year-end ÷ that year's EPS. A read on whether the stock is cheap or dear relative to how it has typically been valued — not a forecast.

Key ratios (by fiscal year)

RatioFY2025FY2024FY2023FY2022
Gross margin46.3%46.1%45.2%14.2%
Operating margin18.7%15.2%15.5%14.2%
Net margin12.1%9.5%9.8%9.4%
FCF margin16.6%13.1%13.8%10.8%
Return on assets10.2%7.3%7.4%6.9%
Return on equity18.7%14.6%13.1%14.3%
Debt / equity0.38×0.54×0.35×0.51×
Current ratio2.042.172.061.63

Computed from company filings · GB · as of 2025-09-30. Figures in GBP. Facts plus Stocktoria's own computed scores — not investment advice.