Diploma (DPLM)

Sector:

Support

Index:

FTSE 100

7,200.00p
   
  • Change Today:
      65.00p
  • 52 Week High: 7,710.00
  • 52 Week Low: 5,015.00
  • Currency: UK Pounds
  • Shares Issued: 134.32m
  • Volume: 392,119
  • Market Cap: £9,671m
  • RiskGrade: 165

Diploma boosts outlook after interim earnings surge

By Abigail Townsend

Date: Tuesday 19 May 2026

LONDON (ShareCast) - (Sharecast News) - Diploma boosted annual guidance for the second time on Tuesday, after the blue chip saw interim earnings rocket.
Organic revenues at the industrial group, which provides a range of critical products and services to customers in various markets, rose 15% in the six months to 31 March to £851.1m, while adjusted operating profits surged 33% to £208.9m.

Driving the growth was the controls business, Diploma's biggest division. It posted a 26% uplift in organic revenues to £495.3m, boosted by "favourable" market conditions across aerospace, defence and datacentres.

Revenues rose 2% in seals and by 4% in life sciences, to £224.9m and £130.9m respectively.

Looking to current trading, Diploma said it had entered the second half "with great momentum". Having upgraded guidance in March, it boosted it again, and is now forecasting annual organic growth of 12% on a constant currency basis, up from 9%, and operating profit growth of more than 30%.

Shares in Diploma spiked as trading got underway, putting on 7% at 7.070p by 0815 BST.

Chief executive Johnny Thomson said: "The strong first-half performance demonstrates how we balance ambitious earnings growth with disciplined returns, in good times and bad, to build on our long track record of sustainable quality compounding. We have strong positions in attractive, structurally-growing markets, and our acquisition pipeline is healthy.

"The second half has started well, and despite the uncertain environment, we're confident in our upgraded full-year guidance."

Diploma does not operate in regions directly impacted by the US-Iran war, though it noted it remained "alert to the wider implications across economies and markets we operate in".

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Note 1: Prices and trades are provided by Digital Look Corporate Solutions and are delayed by at least 15 minutes.

Note 2: RiskGrade figures are provided by RiskMetrics.

 

Diploma Market Data

Currency UK Pounds
Share Price 7,200.00p
Change Today 65.00p
% Change 0.91 %
52 Week High 7,710.00
52 Week Low 5,015.00
Volume 392,119
Shares Issued 134.32m
Market Cap £9,671m
RiskGrade 165

Diploma Star Ratings

Compare performance with the sector and the market.
more star ratings
Key: vs Market vs Sector
Value
98.56% below the market average98.56% below the market average98.56% below the market average98.56% below the market average98.56% below the market average
100% below the sector average100% below the sector average100% below the sector average100% below the sector average100% below the sector average
Price Trend
75.66% above the market average75.66% above the market average75.66% above the market average75.66% above the market average75.66% above the market average
84.95% above the sector average84.95% above the sector average84.95% above the sector average84.95% above the sector average84.95% above the sector average
Income
99.16% below the market average99.16% below the market average99.16% below the market average99.16% below the market average99.16% below the market average
100% below the sector average100% below the sector average100% below the sector average100% below the sector average100% below the sector average
Growth
43.90% above the market average43.90% above the market average43.90% above the market average43.90% above the market average43.90% above the market average
40.91% above the sector average40.91% above the sector average40.91% above the sector average40.91% above the sector average40.91% above the sector average

Diploma Dividends

  Latest Previous
  Interim Final
Ex-Div 28-May-26 15-Jan-26
Paid 12-Jun-26 30-Jan-26
Amount 19.10p 44.10p

Trades for 21-Aug-2026

Time Volume / Share Price
16:47 9,160 @ 7,180.57p
16:39 1,399 @ 7,200.00p
16:35 4,793 @ 7,200.00p
16:35 562 @ 7,200.00p
16:35 309 @ 7,200.00p

Diploma Key Personnel

CEO Johnny Thomson
CFO Wilson Ng

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