Switzerland has long been known as a haven of financial secrecy and tax avoidance in Europe, and has therefore attracted a large number of financial services firms over the years. Today, Switzerland is still home to a fairly large number of forex brokers, some of which offer the MetaTrader 4 (MT4) platform to their traders.
One unique thing about Switzerland today is that it is not part of either the EU or the EEA. Switzerland is therefore one of only a few European countries where forex brokers are not subject to the regulations from the European Securities and Markets Authority (ESMA). As a result, the trading leverage offered by brokers in Switzerland is generally much higher than that offered by brokers elsewhere in Europe.