Calamos Asset Management executives expect to price the firm's IPO shares at between $15.50 and $17.50 at 18 million Class A common shares, according to filing with the SEC. Some of the net proceeds will be used to expand Calamos' alternative investments business. Calamos applied to be listed on the Nasdaq. Citigroup, Merrill Lynch, Goldman Sachs and UBS Investment Bank were listed as underwriters for the IPO. Net proceeds from the offering are estimated to be about $274.3 million, according to the filing. The firm will use the proceeds for general corporate purposes and to expand its alternative investment business. Immediately following the IPO, the filing said, holders of the firm's Class A common stock will own more than 99.9% of its outstanding capital stock.