How to invest in a currency increasing in value relative to another?

External question — Personal Finance Stack Exchange Author: Daniel Valland Original post: https://money.stackexchange.com/questions/57755 License: CC BY-SA 3.0 — https://creativecommons.org/licenses/by-sa/3.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I would like to make a mid to long term investment in a currency that i think will rise. The NOK is currently very low due to low oil prices, and i would like to invest in it rising, as it seams undervalued and about to rise... How would i do this? I know forex trades, but they seam short term (days/weeks instead of years) I am thinkng a time period of about 5 years. The easiest would be to simply buy the currency using another foreign currency like usd or euro, but i only have NOK already, and so there is no other currencies for me to use. Is there a trusted currency exchange company similare to stock borkers? thanks.