ZEHN.SW Zehnder Group AG (SIX) -2.43% pre-market 17 Jan 2026: earnings in focus

Zehnder Group AG (ZEHN.SW) is down -2.43% in pre-market trade at CHF 84.30 on 17 Jan 2026, making it a top loser on the SIX this session.
We see elevated relative volume (14,904 vs avg 17,119) and intraday range CHF 83.90–85.10, which suggests active repositioning ahead of the company’s next earnings date.
The move follows recent mixed margin updates and leaves traders watching whether guidance or technicals will drive further weakness in ZEHN.SW stock.