During the quarter, Archipelago announced the purchase of the Pacific Stock Exchange, with which it has had a partnership since 2000.

FORBES: Thain Taking NYSE Public

It has a small options operation that it inherited in its merger with Archipelago Holdings, which had acquired the Pacific Stock Exchange last year.

FORBES: Magazine Article

The house sits on three lots totaling more than 0.6 acre, making it one of the largest private residential parcels in the city, says the home's owner, Doug Engmann, who is a former chairman of the Pacific Stock Exchange.

WSJ: Private Properties: Santa Monica Compound Lists for $18.8 Million

The NYSE announced on April 20th that it plans to merge with Archipelago Holdings, owner of ArcaEx, a fast-growing ECN that now handles a quarter of the trading in NASDAQ-listed shares and has just acquired the Pacific Stock Exchange, which specialises in derivatives.

ECONOMIST: Buttonwood

In Hong Kong, Cathay Pacific's stock was the biggest loser on the exchange.

CNN: Airlines worldwide face $20B tab