Securities FX Valuation

Hi Gurus ,

here is an issue....

I have a stock with cost 100 usd x eur.

When during the year I run valuation (fx and Price) I end with an

Acq val 100 usd BV 110 (3 from fx and 7 from price val-reserve ) usd, ...xxx eur

The fx valuation posts in P/L accounts those becomes zero in end year (G/L)

But I have calculate them in my BV .

So how is it possible to begin with

Acq 100 but BV 107 usd??

Next year ?? Is it correct and possible in Sap.????

Regards

F.