Long term one year?? Funny, lol.

Since when is a currency an investment with a build in guarantee of ~2% inflation loss.  Currency dealers have been trading for hundreds of years.
If it is secured cryptographic, with watermark or jo blows signature makes no difference unless it is deflationary by nature like Bitcoin.
Stocks, Property, Shares, Gold, Silver,  ...... are investments they may go down in value but by default to not have a build in loss of 2% every year.