Cliffs Natural Resources (CLF) is down $1.85 to $13.58 and has fallen nearly 30 percent since reporting earnings on the 26th. In the options market, sentiment seems somewhat bullish, as 2,200 Mar 17.5 calls have traded. With open interest of 663 and 91 percent of today’s 2,200 contracts hitting ask-side, looks like opening call buyers hoping for a substantial bounce in the near future.