Is Golden Star Resources Ltd. (USA) (NYSEAMEX:GSS) a healthy stock for your portfolio? Prominent investors are becoming less confident.

New York, NY - (NISMAGAZINE) - 06/13/2013- Golden Star Resources Ltd. (USA) (NYSEMKT:GSS) closed in previous session at $0.575 after going down by $0.037 (-6.11%) during the day.

Golden Star Resources Ltd. (USA) (NYSEAMEX:GSS) shares increased 11.14% to $0.721. The company, on May 9, reported its financial results for the first quarter ended March 31, 2013.

First Majestic Silver Corp (NYSE:AG) shares dropped 5.81% to $9.56. The company on May 15 eported first-quarter net income of $26.5 million or $0.23 per basic share, compared to $26.4 mllion or $0.25 per basic share prior year.

Golden Star Resources Ltd (USA) (NYSEMKT:GSS) is moving towards reopening the past-producing Prestea underground mine in Ghana, with a feasibility study on its West Reef deposit indicating impressive results.

New York, NY - (NISMAGAZINE) - 06/07/2013- Savient Pharmaceuticals Inc (NASDAQ:SVNT) is down by 5.44% to trade at $0.728, with a volume of 0.917 million shares.

New York, NY - (NISMAGAZINE) - 5/29/2013-The share prices of Wave Systems Corp. (NASDAQ:WAVX) had declined by 5.13 percent to close at $0.37 per share for the end of last trading session.

Golden Star Resources Ltd. (USA) (NYSEAMEX:GSS) shares increased 4.34% to $0.649. The company, on May 9, reported its financial results for the first quarter ended March 31, 2013.

The share price of Golden Star Resources Ltd. (USA) (NYSEMKT:GSS) declined -10.70% during last trading day, ending at $0.634.

The share price of Golden Star Resources Ltd. (USA) (NYSEMKT:GSS) gained 2.41% during last trading day, ending at $0.679.