Hecla Mining Company (NYSE:HL): Hecla reiterates its 2012 silver production estimate of approximately 7M ounces, which excludes production from the Lucky Friday mine. Production at the Lucky Friday mine is expected to resume in early 2013. Total cash cost net of by-products is expected to be approximately between $1.00-$2.00 per ounce at current metal prices. The shares closed at $5.48, up $0.46, or 9.16%. They have traded in a 52-week range of $4.25 to $11.08.

C&J Energy Services Inc (NYSE:CJES): Last week, CJES reported Q4 revenue $220.1M vs. consensus $246.13M. The shares closed at $22.90, up $1.91, or 9.1%. They have traded in a 52-week range of $12.65 to $32.94.

Polypore International, Inc. (NYSE:PPO): Polypore February 40 and 45 calls are active on total call volume of 1,900 contracts (250 puts) following renewed takeover chatter. March call option implied volatility is at 79, June is at 56; compared to its 26-week average of 58 according to Track Data. Active call volume suggests traders positioning for larger price movement. The shares closed at $43.19, up $2.79, or 6.91%. They have traded in a 52-week range of $36.60 to $74.21.

Stillwater Mining Company (NYSE:SWC): Reported revenue $259.7M, consensus $182.2M. The shares closed at $14.51, up $1.05, or 7.8%. They have traded in a 52-week range of $7.31 to $25.90.

MicroStrategy Incorporated (NASDAQ:MSTR): MicroStrategy upgraded to market perform from underperform at Raymond James. The shares closed at $134.43, up $8.33, or 6.61%. They have traded in a 52-week range of $100.86 to $178.58.

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To contact the reporter on this story: Derek Hoffman at staff.writers@wallstcheatsheet.com

To contact the editor responsible for this story: Damien Hoffman at editors@wallstcheatsheet.com

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