$ZNH is one of biggest losers #stocks today. read more:

China Southern Airlines Company (symbol: ZNH) was one of the worst losers
of the trading day today (2015-08-18), losing -8.65%. The number of shares
that changed hands was 115,493, or about 1 times the average daily volume
in the stock.
The closing price was $39.19, amounting to a market cap of $7,850,000,000,
about -39.44% off the highest price in the last 12 months. The stock has
been trading at a range between $15.79 and $64.71.
ZNH is in the Air Freight/Delivery Services industry, part of the
Transportation sector. It first went public in 1997.
Looking at its valuation, the stock is now trading at 12.44 times earnings.