The purchase represents a 5.2% stake in Kodak and boosts shares to their highest level since mid-August. : Eastman Kodak spiked as much as 52% in early Tuesday trading after hedge fund D. E. Shaw & Co. revealed a new stake in the volatile stock. The New York-based fund bought more than 3.9 million shares of the camera company, according to a Securities and Exchange Commission filing published Monday. The position represents a 5.2% stake in Kodak and is set to lift shares to their highest since mid-August.