PCX President Resigns After OptiMark Launch
Traders Magazine, February 1999
Warren Langley resigned as president and chief operating officer of the Pacific Exchange (PCX) this month, leaving the exchange just six weeks after helping engineer the launch of the OptiMark Trading System.
Langley was hired by the PCX in 1996 to coordinate the development and implementation of OptiMark, and to manage the exchange's daily operations.
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