SigmaRoc shares climbed 12.6% following the release of its first-half 2026 results, which showed EBITDA up 11% year-on-year. The company also used its earnings presentation to disclose what it called a strategic dolime acquisition, expanding its position in industrial minerals used in construction and agriculture.
The share reaction suggests investors viewed both the margin improvement and the deal as evidence the company can keep growing profitably even as broader building-materials demand stays uneven across Europe. Management framed the acquisition as complementary to existing operations rather than a step into a new market.
What remains unclear from the release is how much the dolime business will contribute to earnings once it is folded into results, and whether the 11% EBITDA growth rate can be sustained into the second half.