POINT ROBERTS - September 26, 2011 - www.InvestorIdeas.com, a global investor research portal for independent investors, reports on top percentage gainers on the NASDAQ for Friday September 23rd. NASDAQ closed higher by +27.56 (+1.12%) to 2483.23.

Insurance Company, Harleysville Group Inc. (NASDAQ:HGIC) was the top percentage gainer for the session closing higher by 5.99 (23.65%) to $31.32. Nationwide Mutual Insurance Co., the eighth-largest U.S. personal auto insurer, is in talks to buy Pennsylvania-based rival Harleysville Group Inc. (HGIC) and its parent firm, said people with knowledge of the negotiations. The Company through its subsidiaries, engages in the property and casualty insurance business primarily in the eastern and Midwestern United States.

MannKind Corporation (NASDAQ:MNKD) surged 0.56 (17.61%) to close at $.74 after the company said that it plans to sell $370 million in debt to help fund development and product trials.

MannKind Corporation focuses on the discovery, development and commercialization of therapeutic products for patients with diseases such as diabetes and cancer.

Renewable Energy Stock, American Superconductor Corporation (NASDAQ:AMSC) closed with an impressive gain of 0.61 (13.65%) to end the day at $5.08 after the company announced its recent successes in the wind power and power grid markets, including nearly $100 million in new contracts since the start of the company’s fiscal year on April 1, 2011. AMSC signed contracts with wind turbine manufacturers in China, India and Korea. Within its Grid segment, AMSC received orders for its grid interconnection and high voltage stability solutions in the U.S. and Europe and made a key high temperature superconductor wire shipment to South Korea.

Retailer, Syms Corp. (NASDAQ:SYMS) ended at $9.54, up 1.08 (12.77%) after falling about 10% in the past one week. The stock is up 37% so far this year. It has a 52-week range of $6.11-$12.99.

Investor Research Tools;

Get Free investor news and stock alerts

Sign Up: http://www.investorideas.com/Resources/Newsletter.asp

Join Investor Ideas Get 13 of the best stock directories online;

Research oil and gas stocks, gold stocks, water stocks, renewable energy stocks (over 1300 green stocks in directory) and more

Join: http://www.investorideas.com/membership/

About InvestorIdeas.com:

InvestorIdeas.com is a leader in investor stock research by sector. Sectors we cover include; cleantech and renewable energy stocks, biotech stocks, mining and gold stocks, energy stocks, water, tech, defense stocks, nanotech, agriculture and gaming.

Follow Investorideas.com on Twitter http://twitter.com/#!/Investorideas

Follow Investorideas.com on Facebook http://www.facebook.com/Investorideas

Disclaimer: Our sites do not make recommendations. Nothing on our sites should be construed as an offer or solicitation to buy or sell products or securities. We attempt to research thoroughly, but we offer no guarantees as to the accuracy of information presented. All Information relating to featured companies is sourced from public documents and/ or the company and is not the opinion of our web sites. This site is currently compensated by featured companies, news submissions and online advertising . www.InvestorIdeas.com/About/Disclaimer.asp

            800-665-0411      

Source - www.Investorideas.com