Seagate and Western Digital shares fall on latest rebound from Toshiba competition

Shares of Seagate Technology (STX) and rival Western Digital (WDC) fell again on Tuesday as investors weighed Toshiba’s potential competitive threat in the hard drive market. In the latest twist, Bloomberg reported Tuesday that Toshiba and Seagate were competing to acquire TDK Corp.’s magnetic head business. TDK is the only independent manufacturer of magnetic recording heads, which…