The Swiss National Bank's foreign exchange reserves increased to 462.395 billion Swiss francs in November from 460.556 billion francs in October, according to data on Friday. That could be an indication that the Swiss National Bank (SNB) had intervened in currency markets to keep the franc down.
The SNB declined to comment on whether it had intervened or not.
The SNB capped the franc at 1.20 per euro in September 2011. It had intervened heavily in 2012 to defend the cap.