Diploma /£DPLM
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About Diploma
Diploma PLC is a UK-based international group of businesses supplying specialized technical products and services. Operating primarily in the Life Sciences, Seals, and Controls sectors, the company distributes a diversified range of products across industries such as healthcare, environmental, and industrial technology. Founded in 1931, Diploma PLC is listed on the London Stock Exchange under the ticker symbol DPLM.
Ticker
£DPLM
Sector
Primary listing
LSE
Employees
3,300
Headquarters
Website
Diploma Metrics
BasicAdvanced
£7.4B
44.41
£1.24
0.73
£0.60
1.09%
Price and volume
Market cap
£7.4B
Beta
0.73
52-week high
£56.25
52-week low
£35.32
Average daily volume
264K
Dividend rate
£0.60
Financial strength
Current ratio
2.329
Quick ratio
1.147
Long term debt to equity
51.882
Total debt to equity
53.327
Dividend payout ratio (TTM)
47.49%
Interest coverage (TTM)
7.64%
Profitability
EBITDA (TTM)
328.8
Gross margin (TTM)
46.92%
Net profit margin (TTM)
11.52%
Operating margin (TTM)
17.24%
Effective tax rate (TTM)
24.02%
Revenue per employee (TTM)
£440,000
Management effectiveness
Return on assets (TTM)
9.48%
Return on equity (TTM)
18.37%
Valuation
Price to earnings (TTM)
44.414
Price to revenue (TTM)
5.091
Price to book
7.87
Price to tangible book (TTM)
-76.02
Price to free cash flow (TTM)
36.906
Free cash flow yield (TTM)
2.71%
Free cash flow per share (TTM)
1.496
Dividend yield (TTM)
1.09%
Growth
Revenue change (TTM)
15.75%
Earnings per share change (TTM)
43.81%
3-year revenue growth (CAGR)
18.63%
10-year revenue growth (CAGR)
16.33%
3-year earnings per share growth (CAGR)
28.19%
10-year earnings per share growth (CAGR)
14.27%
3-year dividend per share growth (CAGR)
10.10%
10-year dividend per share growth (CAGR)
13.22%
What the Analysts think about Diploma
Analyst ratings (Buy, Hold, Sell) for Diploma stock.
Bulls say / Bears say
Strong H1 performance: Diploma reported a 14% increase in revenue to £728.5 m, organic growth of 9%, adjusted operating profit up 25%, and upgraded full-year organic revenue guidance to 8% with a target operating margin of 22% (Reuters)
Q3 trading update: Year-to-date organic growth reached 10% with Q3 alone at ~12%, prompting management to raise full-year organic growth guidance to 10%, driven by U.S. market strength and Seals segment recovery (Reuters)
Robust cash generation: In H1 Diploma generated £83.8 m of free cash flow with a 78% conversion rate, underpinning dividend increases and disciplined acquisitions (Reuters)
CFO resignation risk: Chief Financial Officer Chris Davies resigned with immediate effect over a conduct lapse, potentially causing leadership uncertainty until a permanent successor is appointed (Reuters)
Currency headwinds: Year-to-date revenue growth was partially offset by a 2–3% foreign exchange headwind, highlighting ongoing currency volatility risk to earnings (Investing.com)
Stretched valuation: Diploma trades at a trailing P/E of 43.49x and a PEG ratio of 3.40, levels well above industrials peers, limiting further upside (StockAnalysis)
Data summarised monthly by Lightyear AI. Last updated on 7 Sept 2025.
Diploma Financial Performance
Revenues and expenses
Diploma Earnings Performance
Company profitability
Data displayed above is indicative only and its accuracy or completeness is not guaranteed. Actual execution price may vary. Past performance is not indicative of future results. Your return may be affected by currency fluctuations and applicable fees and charges. Capital at risk.
Market data provided by CBOE Europe and Deutsche Börse.
Capital at risk
Upcoming events
No upcoming events
FAQs
What’s the current market cap for Diploma stock?
Diploma (DPLM) has a market cap of £7.4B as of September 15, 2025.
What is the P/E ratio for Diploma stock?
The price to earnings (P/E) ratio for Diploma (DPLM) stock is 44.41 as of September 15, 2025.
Does Diploma stock pay dividends?
Yes, the Diploma (DPLM) stock pays dividends to shareholders. As of September 15, 2025, the dividend rate is £0.602 and the yield is 1.09%. Diploma has a payout ratio of 47.49% on a trailing twelve-month basis.
When is the next Diploma dividend payment date?
The next Diploma (DPLM) dividend payment date is unconfirmed.
What is the beta indicator for Diploma ?
Diploma (DPLM) has a beta rating of 0.73. This means that it is less volatile than the market, on average. A beta of 1 would indicate the stock moves in-line with the market, while a beta of 0.5 would mean it moves half as much as the market.