0.385 dollars equals 0.31 euros. Ete is trading at 35 euros. So the NBGGY ADR is 12% behind. This is mostly because the dollar is weakening. One dollar is 1.23 euros. If you convert to ETE today you will lose 12% of your shares. If the ADR was 44 cents today then you would not lose during the exchange to ETE. Also, if I am not mistaken there is 1% commission to buy the ETE on the Athens Exchange.