ALKAL.PA stock jumps to €2.85 on 19 Jan 2026: heavy volume points to follow-through

The ALKAL.PA stock surged intraday to €2.85 on 19 Jan 2026, rising 78.80% on heavy volume of 970,763.00 shares. This move made Kalray S.A. (ALKAL.PA) one of today’s top gainers on EURONEXT in Europe. The leap followed a run above the 50-day average of €0.94 and a 200-day average of €0.72, shifting market attention from earlier thin trading to clear momentum that traders should watch closely for follow-through.