The amount of cash commercial banks hold with the Swiss National Bank rose the most since at least March 2013 last week, indicating the central bank may have intervened to keep the franc down despite scrapping a cap against the euro. Switzerland's central bank shocked financial markets 11 days ago by abandoning a three-year-old cap on the franc, sending the currency soaring against the euro. Sight deposits surged to 365.486 billion Swiss francs last week, up from 339.614 billion francs in the prior week, data from the SNB showed on Monday. The SNB can expand sight deposits through foreign exchange swaps and ... (full story)