The Swiss Federal Customs Administration released its trade data on Tuesday. The Swiss trade surplus rose to CHF3.05 billion in September from CHF2.86 billion in the previous month. August's figure was revised down from a surplus of CHF2.87 billion.

Exports dropped 2.9% year-on-year in September, while imports were down 3.8% year-on-year.

The Swiss trade surplus climbed to CHF9.42 billion in the third quarter from CHF9.37 billion in the second quarter.

Exports slid 5.1% in the third quarter, while imports fell 2.5%.