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

Navistar International Corporation (symbol: NAV) was one of the biggest
winners of the trading day today (2015-09-03), gaining 12.82%. The number
of shares that changed hands was 4,624,030, or about 3.0 times the average
daily volume in the stock.
The closing price was $18.74, amounting to a market cap of $1,530,000,000,
about -53.35% off the highest price in the last 12 months. The stock has
been trading at a range between $15.33 and $40.17.
NAV is in the Auto Manufacturing industry, part of the Capital Goods sector.