The Securities and Exchange Commission approved rules on Sept. 10, 2010, to expand the existing circuit breaker program that currently is triggered by large, sudden price moves in an individual stock. The new rules follow changes adopted on June 10, 2010, that impose a uniform market-wide pause in trading in individual stocks whose price moves 10% or more in a five-minute period. The trading pause, which was proposed by U.S. exchanges and the Financial Industry Regulatory Authority (FINRA), initially was limited to stocks in the Standard & Poor’s 500 Index, but has been extended to stocks in the Russell 1000 Index and to certain exchange-traded products.

The SEC’s Office of Investor Education and Advocacy is issuing this Investor Bulletin to help educate investors regarding the rules that apply to trading securities in cash accounts and to highlight the 90-day account freeze which may arise with certain trading activities in these type of accounts.

The SEC’s Office of Investor Education and Advocacy is issuing this Investor Bulletin to help educate investors regarding the margin rules that apply to day trading in a Regulation T margin account and to respond to a number of frequently asked questions we have received.