Lehman Brothers Financial SA (LEHNQ)

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Archstone hopes to raise up to $3.45B in IPO. Apartment company Archstone (ASN) said it plans to raise as much as $3.45B in its IPO on the NYSE, which would make it the largest ever commercial real-estate public offering in the U.S. While the Lehman Brothers (LEHMQ.PK) unit didn't say how many shares it plans to sell, nor at what range, analysts estimate Archstone could be worth up to $16B. The company plans to organize itself as a REIT.