The Swiss blue-chip index SMI, a measure of the largest and most actively traded companies, tumbled 1.53 per cent to 6,574.56. The broader Swiss Performance Index fell 1.43 per cent to stand at 6,048.40.
"The economic reports were a mixed bag today, but the market probably doesn't care about that at the moment," said James Gaul, a portfolio manager at Boston Advisors LLC.