i own this company on both the new york and amsterdam exchange , i bought it on the nyse @ $39.95 a week ago , its risen by a dollar since then , i bought the same stock for 29.70 ( euro ) on the amsterdam exchange the same day and its valued at 29.80 today , even allowing for forex , figures dont add up , its also listed on the london exchange and has had a decent rise there aswell , whats up with the amsterdam listing ?