Circuit Breakers, Trading Collars, and Volatility Transmission Across Markets: Evidence from NYSE Rule 80A Michael A. Goldstein* Babson College Current version: April 7, 2015 * Donald P. Babson Professor of Finance, Babson College, Finance Department, 231 Forest Street, Babson Park, MA 02457-0310; Phone: (781) 239-4402; Fax: (781) 239-5004; E-mail:
[email protected] The author would like to thank Mark Ventimiglia, formerly of the International and Research Division of the New York Stock Exchange, for providing the data for this study and Alejandro Latorre, formerly of the Capital Markets Function of the Federal Reserve Bank of New York for excellent research assistance. Additional thanks go to Robert Van Ness (the editor), Joan Evans, James Mahoney, and participants at the Second Joint Central Bank Research Conference on Risk Measurement and Systematic Risk in Tokyo, Japan. Much of this analysis was completed when the author was the Visiting Economist at the New York Stock Exchange. The views expressed in this paper do not necessarily reflect those of the New York Stock Exchange. An early version of this paper was entitled “Circuit Breakers, Volatility, and the U.S. Equity Markets: Evidence from NYSE Rule 80A.” Circuit Breakers, Trading Collars, and Volatility Transmission Across Markets: Evidence from NYSE Rule 80A Abstract The New York Stock Exchange’s Rule 80A attempted to de-link the futures and equity markets by limiting index arbitrage trades in the same direction as the last trade to reduce stock market volatility. Rule 80A leads to a small but statistically significant decline in intraday U.S. equity market volatility.