Swiss franc

The Swiss franc's value has never been as stable as in the past twenty years. Over this period, the currency has managed to gain 75% against the US dollar. Many investors opt for the Swiss franc as Switzerland is known for its high level of economic freedom. Its economy is not dependent on 1–2 sectors. The country ranks amongst the top countries in terms of labor productivity and low inflation. Thanks to these factors, the local currency is considered to be the most reliable in the world.

Czech crown

The Swiss franc is followed by the Czech crown. Over two decades, this currency has been able to advance by more than 60% against the greenback. The Czech Republic is a member country of the European Union but still retains its own national currency. In terms of GDP growth, this country surpasses many states. Such factors as relatively low inflation and continuing inflows of foreign capital have a positive effect on the ‘well-being’ of the Czech crown.

New Zealand dollar

New Zealand has an almost impeccable economic reputation. This can be attributed to its efficient and highly developed agricultural sector. Besides, the country's economy is considered to be the most globalized in the world. New Zealand has close trade ties to the member states of the European Union, the United States, China, Japan, Australia, and many other economically developed countries. Thanks to these factors, the New Zealand dollar is also among the most stable world currencies. Over 20 years, it has gained more than 30% against the US dollar.

Also listed

According to analysts, stable currencies are those that have strengthened considerably and have not been subject to strong devaluation against the world's key currency, the greenback. Thus, the list also includes the Chinese yuan, as well as the monetary units of Albania and Croatia. These currencies have succeeded in adding up to 20% against the US dollar. In addition, the currencies of the following European countries have risen in price over 20 years: Sweden, Denmark, Bulgaria, and Poland. The Asian region, namely South Korea, Hong Kong, and Singapore, can boast of an increase in the value of their banknotes as well. Furthermore, the Australian and Canadian dollars have managed to show confident upward dynamics.