market folly

Larry Robbins' hedge fund Glenview Capital has increased its position in ArvinMeritor (ARM). Due to portfolio activity on March 18th, 2011, Glenview has disclosed a 5.72% ownership stake in ARM with 5,388,617 shares.

This marks a 33% increase in their position size from the end of 2010 when they owned 4,038,617 shares. Since the beginning of 2010, shares are down around 6%. Keep in mind also that ARM's ticker symbol will be changing to MTOR at the end of the month. In addition to this recent portfolio activity, Larry Robbins' hedge fund recently expanded its short portfolio as well.

Per Google Finance, ArvinMeritor is "a global supplier of a range of integrated systems, modules and components to original equipment manufacturers (OEMs) and the aftermarket for the commercial vehicle, transportation and industrial sectors. The company serves commercial truck, trailer, off-highway, military, bus and coach and other industrial OEMs and certain aftermarkets, and light vehicle OEMs."