Shares of AK Steel (NYSE:

) are higher on the session by 5.64%, trading at $8.24. Overall put volume is now running at 2.28x the daily average, with 46% of all puts traded being purchases on the offer. 15,126 contracts have traded on the session so far. AK Steel Holding Corporation is a producer of flat-rolled carbon, stainless and electrical steels and tubular products through its wholly owned subsidiary, AK Steel Corporation.