Empire Executions' Peter P. Costa weighs in on QE3, the EU debt crisis and geopolitical concerns. Technical levels for the S&P 500 are also discussed.

Key Note presentation: Peter P. Costa, Governor with the New York Stock Exchange, President of Empire Executions and CNBC Market Analyst. Intro by Dean Ken Cyree, Welcome by Chancellor Jones

What investors want to hear from the ECB meeting on Thursday, with CNBC Contributor Peter P. Costa and Carol Roth, author of "The Entrepreneur Equation."

Empire Executions' Peter P. Costa talks equity market expectations for September. Key economic data and the outlook for central banks are also discussed.

CNBC Markets analyst Peter P. Costa, and David Darst, Morgan Stanley Smith Barney, provide perspective on today's market moves.