The top after-market NASDAQ stock market losers are: Chart Industries, Corinthian Colleges, DSP Group, Macatawa Bank, MIPS Technologies, BSD Medical, NetScout Systems, Constant Contact, Stonemor Partners, and Monro Muffler Brake.

Chart Industries Inc. (GTLS) lost 6.51 percent to $29.57 in the after-hours trading.

Corinthian Colleges Inc. (COCO) plunged 4.59 percent to $3.95 in the after-market session. The company said Peter Waller has resigned as chief executive officer and as a member of its board. The company's former CEO and current chairman Jack Massimino will return to chief executive role, effective immediately.

DSP Group Inc. (DSPG) plummeted 3.40 percent to $7.39 in the after-hours trading.

Macatawa Bank Corp. (MCBC) fell 3.27 percent to $2.37 in the after-market session.

MIPS Technologies Inc. (MIPS) dropped 3.09 percent to $13.17 in the after-hours trading.

BSD Medical Corp. (BSDM) tumbled 3.07 percent to $4.10 in the after-market session. The company said news coverage highlighted the value of hyperthermia for treatment of breast cancer patients who have failed other therapies. The treatment reported in the segment utilized the BSD-500 Hyperthermia System to deliver the hyperthermia.

Earlier, BSD Medical said it did not have any pending orders as of Aug. 31, the end of its fiscal year. Since then, it has received orders for 7 hyperthermia systems, which treat cancer with heat, totaling about $2.4 million.

NetScout Systems Inc. (NTCT) declined 2.73 percent to $21.49 in the after-hours trading.

Constant Contact, Inc. (CTCT) decreased 2.24 percent to $25.02 in the after-market session.

Stonemor Partners LP (STON) moved down 2.07 percent to $28.45 in the after-hours trading.

Monro Muffler Brake Inc. (MNRO) fell 1.85 percent to $48.52 in the after-market session.