E.T.F. stands for exchange traded fund. A portfolio of something that trades like a stock on the exchange. There are also closed end mutual funds, that trade on the exchange like a stock. There are many many various types of both, from fairly calm to heavily leveraged, broad based to on the other hand narrow based.
If you are NOT familar with these, get familar, plenty of stuff on the net explaining them before investing.
Last edited by RoninPhx; 09/28/15.
