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

Navistar International Corporat (symbol: NAV) was one of the worst losers
of the trading day today (2015-10-27), losing -19.2%. The number of shares
that changed hands was 2,659,690, or about 2 times the average daily volume
in the stock.
The closing price was $11.36, amounting to a market cap of $926,090,000,
about -70.14% off the highest price in the last 12 months. The stock has
been trading at a range between $11.21 and $38.05.
NAV is in the Auto Manufacturing industry, part of the Capital Goods sector.