(LEAD) ETF net asset value tops 25 tln won
(ATTN: ADDS data on bond market in last 3 paras)
SEOUL, Jan. 5 (Yonhap) -- South Korea's exchange traded fund (ETF) market expanded sharply in 2016, with the total net asset value surpassing 25 trillion won (US$21 billion) for the first time, the coun