OHB.DE stock up 35.26% pre-market on Rheinmetall talks: watch volume surge

On 27 Jan 2026 pre-market trading, OHB.DE stock surged 35.26% to EUR 234.00 after reports of cooperation talks with Rheinmetall, making it Germany’s top gainer. Volume spiked to 70,582 shares versus an average of 4,927, a clear liquidity event driving price discovery. We review the catalysts, valuation gaps, technical signals and trading implications for investors in the XETRA-listed aerospace and defense specialist.