What it means
● Proponents said
the rule would save investors $321 million each year by ensuring they get the best price for their stock. Commission studies said as many as 98,000 trades, or about 2 percent of the total daily volume, did not receive the best price posted on the various exchanges and markets.
● Opponents noted
that $321 million was a tiny fraction of the $18.7 trillion in stocks traded each year, and that the costs of implementing the rule and the time and resources brokers and traders would take in defending their trades to SEC regulators would outweigh the benefits.