Schapiro meets with market heads
U.S. regulator plans review of rating agency
No conclusive explanation for Thursday's sudden market dive
Permitting brokers to provide investment advice without requiring them to act as fiduciaries leaves investors vulnerable to abuse
Letters sent to 19 banks, Schapiro says
Mueller and Jinnah ordered to pay US$75,000 and US$50,000, respectively
Investors allegedly lost more than $1 billion
Quadrangle agrees to pay US$12 million in penalties
New cap on options fees also proposed
Securities industry cautiously supportive