SAN FRANCISCO (AFX) -- NTK Holdings Inc. on Friday filed with Securities and Exchange Commission to raise up to $690 million in its initial public offering. NTK Holdings, a manufacturer and distributor of ventilation and other products, plans to apply to list its shares on the New York Stock Exchange under the symbol 'NTK.' Two lead underwriters are Goldman, Sachs & Co. and Credit Suisse. This story was supplied by MarketWatch. For further information see www.marketwatch.com.