Bill Ackman of Pershing Square Capital Management has been right some many times this year it's scary.He predicted the demise of the monoline bond-insurers, such as MBIA ( MBI) and Ambac ( ABK), well before the credit crunch really hit the economy. Ackman began shorting shares of MBIA north of $60 and Ambac north of $75; MBI now trades at $6 and Ambac at 76 cents. Ackman also owned 25% of Longs Drugs ( LDG) back in mid-September. Within three weeks of Pershing Square's, purchase, Longs was bought out for a nice 30% premium. So when Pershing Square, an $8 billion-plus activist hedge fund that has had returns of 40% or more over the past two years, filed its latest equity holdings, we paid close attention. To read more, visit Stockpickr.com.