Pre-market high-volume mover: B7J.DE SRV Yhtiöt Oyj (XETRA) €6.16 on 19 Jan 2026, watch momentum

B7J.DE stock trades at €6.16 in XETRA pre-market on 19 Jan 2026, after a sharp gap from the prior close of €0.15, and shows volume 2,000 versus a 50-day average of 1,262. This high-volume move makes SRV Yhtiöt Oyj one of the top pre-market volume movers in the German session. We use price, volume, and fundamentals to explain the move and what traders should watch next.