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

Cliffs Natural Resources Inc. (symbol: CLF) was one of the biggest winners
of the trading day today (2016-05-31), gaining 39.41%. The number of shares
that changed hands was 45,912,572, or about 4.4 times the average daily
volume in the stock.
The closing price was $4.28, amounting to a market cap of $778,630,000,
about -26.59% off the highest price in the last 12 months. The stock has
been trading at a range between $1.2 and $5.83.
CLF is in the Precious Metals industry, part of the Basic Industries sector.
Looking at its valuation, the stock is now trading at 8.53 times earnings.