The top after-market NASDAQ Stock Market gainers are: MAKO Surgical, Andatee China Marine Fuel Services, Charming Shoppes, Home Bancorp, and Performance Technologies. The top after-market NASDAQ Stock Market losers are: Maxygen, SMART Modular Technologies, Oplink Communications, Jos. A Bank Clothiers, and Energy Conversion Devices.

Gainers

MAKO Surgical Corp. (MAKO) stock jumped 9.79 percent to $23.54 in the after-market trading. The company announced receipt of a binding commitment for the establishment of eleven new MAKOplasty sites from Health Management Associates, Inc. (HMA). It is expected that these MAKOplasty sites will be established over the course of 2011.

We are encouraged by the strengthening of our partnership with HMA and their increased commitment to establish MAKOplasty as an integral part of their hospitals' orthopedic programs. This multi-system order represents the binding commitment to purchase RIO systems that were anticipated in our 2011 plan, allowing us to confidently reaffirm our previously announced annual guidance of 40 to 46 systems, said Maurice Ferre, Chief Executive Officer of MAKO.

Andatee China Marine Fuel Services Corp. (AMCF) stock advanced 7.91 percent to $4.64 in the after-market trading. Profit for the fourth quarter was $2.2 million or 24 cents a share, compared to $1.7 million or 28 cents a share last year. Revenue grew 53.5 percent to $59.8 million. For the fiscal 2011, the company expects earnings of $11 million to $13 million and revenue of $275 million to $325 million.

Charming Shoppes Inc. (CHRS) stock grew 6.22 percent to $4.44 in the after-market trading.

Home Bancorp, Inc. (HBCP) stock gained 6.13 percent to $15.76 in the after-market trading. The company said it has entered into a definitive agreement with GS Financial Corp. (GSLA), whereby Guaranty Savings Bank will merge into Home Bank in a cash transaction. The holding companies for each bank will also merge. Shareholders of GS Financial will receive $21.00 a share in cash upon completion of the merger.

The combined company will have total assets of about $950 million, $625 million in loans and $750 million in deposits. The merger is expected to be completed in the third quarter of 2011. Following the merger, Home Bank's capital position is expected to remain one of the strongest in the industry with total risk-based capital near 19 percent. No additional capital is needed to complete the transaction, the company said.

Performance Technologies Inc. (PTIX) stock increased 5.47 percent to $2.12 in the after-market trading. Loss for the fourth quarter widened to $4.39 million or 39 cents a share from $3.61 million or 32 cents a share last year. Sales fell to $6.84 million from $8.33 million. The company expects first quarter revenue growth of 35 percent to 45 percent over last quarter and expects revenue to exceed any prior quarter in 2009 and 2010.

We expect that revenues in 2011 will begin to show a return on the investments we have made and reflect a meaningful increase in our revenue run rate. However, given ongoing business climate uncertainties, we will also prudently manage our going forward expense levels to further align them as necessary with actual business levels, said John Slusser, chief executive officer of Performance Technologies.

Losers

Maxygen, Inc. (MAXY) stock fell 4.11 percent to $4.90 in the after-market trading.

SMART Modular Technologies (WWH) Inc. (SMOD) stock slid 3.47 percent to $7.24 in the after-market trading.

Oplink Communications Inc. (OPLK) stock declined 2.98 percent to $19.51 in the after-market trading. In a regulatory filing, the company said it issued a letter to its customers on March 29 with an update regarding the earthquake and tsunami in Japan and its potential effect on Oplink's supply chain.

Since our last communication, we have learned from some of our Japanese suppliers that operations have resumed at their facilities. Utilities have been restored, and a number of their employees have returned to work. However, due to the severe damage, roads and other infrastructure are still under limited operation. Some suppliers have yet to provide a complete status update, Peter Lee, Chief Operating Officer of Oplink, stated in the letter.

At this moment, we believe that lead times on certain product lines may be affected. Our sales managers will continue to reach out to those with affected orders as soon as possible, Lee said.

Jos. A Bank Clothiers Inc. (JOSB) stock decreased 2.57 percent to $49.25 in the after-market trading.

Energy Conversion Devices, Inc. (ENER) stock moved down 2.49 percent to $2.35 in the after-market trading.