** Shares in Rockwool ROCKb.CO are down 15% after the Danish mineral wool maker lowered its full year guidance as it expects challenges in key markets
** It now forecasts its revenue in 2025 to be in line with last year's results, against single-digit growth it expected earlier
** It also estimates its EBIT margin in 2025 to be below 16%, while earlier it saw the number at around 16%
** Rockwool expects near-term constraints in key markets, including North America
** The stock fall to the bottom of STOXX 600 .STOXX and is set for worst day since February 2023