Siltronic falls on EBITDA margin outlook cut amid U.S. tariff uncertainty

Shares in Siltronic WAFGn.DE fall 4.5% after the German semiconductor materials supplier cut its FY EBITDA margin guidance, citing uncertainty over the impact of U.S. tariffs

Siltronic now expects FY EBITDA margin of 21% to 25%, vs 22%-27% previously targeted

It keeps 2025 sales guidance unchanged, but says it is not yet possible to estimate the impact of the tariffs and the corresponding countermeasures on expected end-market growth and FX rates

Jefferies says that new EBITDA margin guidance is 4% below consensus at mid-point

"Demand for wafers continues to be subdued with inventories still at elevated levels at semi manufacturers, and timing of normalization is still uncertain," the broker adds

Belgium's microelectronics manufacturer Melexis MLXS.BR shares are also down 3% after posting a 18% drop in its Q1 sales

Siltronic, which has lost 19.8% YTD, hits the bottom of Germany's small-cap index .SDAXI