There are a couple of caveats with GZFX, first they are traded on the Berlin exchange. I've lost a lot of money with stocks on that exchange. They run up and then bagholders get burned, some seem never to recover. I think EZTO and FASC were two on that exchange. Both had major problems getting off the exchange. The second caveat is that it fell on a day when almost everything else turned green.
I'm still a rookie trader, so don't take this as advice, just wanted to share my experience.