Diploma Shares Rise as Royal Bank Reaffirms Outperform Rating

Diploma plc's stock price has been on a steady trajectory after Royal Bank of Canada reaffirmed its outperform rating and GBX 7,400 price target for the shares. On September 9, 2026, Diploma closed at around GBX 7,110 on the London Stock Exchange, which is roughly 4.1 percent below the analyst's target.

As MarketBeat reported, this price level represents a point where the shares are well below their one-year high of GBX 7,765, but still above the lower end of their trading range for the period leading up to that session, which was between GBX 4,970 and GBX 7,765.

With its market capitalization sitting at around GBP 9.53 billion as of September 9, 2026, Diploma is firmly established among larger members of the London market. Today's trading will likely be influenced by how investors respond to Royal Bank of Canada's reaffirmed rating and price target, which implies modest further upside from the current level.