equity market struture

SEC Chairman on Equity Market Structure

On September 7, SEC Chairman Schapiro discussed issues facing the equity market structure, including: (i) circuit breaker mechanisms that directly limit price volatility, (ii) the regulatory scheme for high frequency trading firms, (iii) the practice of submitting large volumes of orders into the markets, most of which are cancelled, and (iv) the effect of market fragmentation on public price discovery and market stability. SEC Release.