One Way to Unrig Stock Trading - The New York Times:
"AMERICA’S equity markets are broken. Individuals and institutions make transactions in rigged markets favoring short-term players. The root cause of the problem is that stocks trade on numerous venues, including 11 traditional exchanges and dozens of so-called dark pools that allow buyers and sellers to work out of the public eye. This market fragmentation allows high-frequency traders and exchanges to profit at the expense of long-term investors."
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