The top after-market NYSE gainers Monday were Tronox Ltd, Two Harbors Investments, Bank of America Corp, Discover Financial Services and Quicksilver Resources Inc. The top after-market NYSE losers were Genco Shipping & Trading, M/I Homes, RAIT Financial Trust, Wabash National Corp and Headwaters Inc.

Gainers

Tronox Ltd. (TROX) shares surged 4.38 percent to $18.13 in post-market trading after gaining more than 10 percent in regular trading.

Two Harbors Investments Corp (TWO) shares gained 2.36 percent to $11.70 in post-market trading. The company declared a quarterly dividend of $0.55 per share of common stock Monday, for the fourth quarter of 2012, payable Jan. 18, 2013, to common stockholders of record at the close of business Dec. 31, 2012.

Bank of America Corp. (BAC) shares rose 2.18 percent to $11.24 in post-market trading. The company announced Monday that its Board of Directors authorized a regular quarterly dividend of $18.125 per share on the 7.25 percent Non-Cumulative Perpetual Convertible Preferred Stock, Series L.

Discover Financial Services (DFS) shares advanced 2.17 percent to $41.05 in post-market trading. The stock has a 52-week low of $23.20, a 52-week high of $42.08 and $20.28 billion in market capitalization.

Quicksilver Resources Inc. (KWK) shares advanced 2.08 percent to $3.44 in post-market trading. The stock has a 52-week low of $2.62, a 52-week high of $7.18 and $582.84 million in market capitalization.

Losers

Genco Shipping & Trading Ltd. (GNK) shares tumbled 8.42 percent to $2.72 in post-market trading. The company stock gained more than 9 percent in regular trading.

M/I Homes, Inc. (MHO) shares plunged 5.68 percent to $23.08 in post-market trading. The stock has a 52-week low of $8.86, a 52-week high of $24.50 and $524.58 million in market capitalization.

RAIT Financial Trust (RAS) shares plunged 5.52 percent to $5.65 in post-market trading. The company announced Monday that it has commenced an underwritten public offering of 9,000,000 common shares. 

Wabash National Corp. (WNC) shares declined 5.46 percent to $8.48 in post-market trading. The company stock surged more than 5 percent in regular trading.

Headwaters Inc. (HW) shares declined 4.95 percent to $7.29 in post-market trading. The company announced Monday that it is offering 7,600,000 shares of its common stock in a public offering.