June 23, 2010
Ms. Elizabeth M. Murphy
Secretary
Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549
Re: Market Structure Roundtable (File No. 4-602)
Dear Ms. Murphy:
The Investment Company Institute1 is writing to follow-up on its earlier submission regarding
the Commission’s June 2 roundtable examining the current U.S. equity market structure.2 We are
pleased that the Commission held the roundtable to facilitate a discussion of the critical issues
impacting the securities markets, including how investors are faring under the current market structure,
high frequency trading and undisplayed liquidity, and the relationship of these issues to the market
events that occurred on May 6, 2010.
Despite the differing views expressed by roundtable participants on many of the issues
discussed, it was clear that most participants agreed that an examination of the current structure of the
U.S. equity markets is warranted given the significant changes in the markets. In addition, most
participants believed that given the events that occurred on May 6, the issues considered at the
roundtable have taken on increased importance.
Our prior submission discusses in detail our recommendations on the reform of the current
market structure. We urge the Commission to move expeditiously to examine the issues facing our
markets and to consider the Institute’s recommendations on behalf of significant buyside participants.
1 The Investment Company Institute is the national association of U.S. investment companies, including mutual funds,
closed-end funds, exchange-traded funds (ETFs), and unit investment trusts (UITs). ICI seeks to encourage adherence to
high ethical standards, promote public understanding, and otherwise advance the interests of funds, their shareholders,
directors, and advisers. Members of ICI manage total assets of $11.97 trillion and serve almost 90 million shareholders.
2 See Letter from Karrie McMillan, General Counsel, Investment Company Institute, to Elizabeth M. Murphy, Secretary,
Securities and Exchange Commission, dated June 1, 2010.
Ms. Elizabeth M. Murphy
June 23, 2010
Page 2 of 4
I. Issues Addressed in SEC Market Structure Concept Release
The recommendations set forth by the Institute in our prior submission for the roundtable and
in our comment letter on the Commission’s concept release on the U.S. equity market structure3 were
echoed by many roundtable participants.4 In particular, we were pleased that several roundtable
participants, representing both the buyside and the sellside, called for increased transparency regarding
specific trading issues such as the order routing and execution practices of broker-dealers and other
trading venues. Improved information about current trading practices and these market participants
would allow investors to make better informed investment decisions and would assist regulators in
understanding and surveiling the markets, a need that was made starkly apparent in the aftermath of
the May 6 market events.
As expected, there was no agreement on the benefits or costs of high frequency trading to the
securities markets.5 We particularly agree with the statements of many participants regarding the need
for more transparency and an examination of the current rules and regulations surrounding high
frequency trading. For example, one roundtable participant highlighted the need for: (1) more
information about high frequency traders and the practices of high frequency trading firms; (2) an
examination of whether high frequency trading firms should be subjected to certain quoting
obligations; (3) an examination of the strategies employed by high frequency trading firms; (4) a means
to curb the increasing number of order cancellations in the securities markets; and (5) an examination
of the incentives that currently exist for market participants to route orders to particular venues.6 As
the Commission continues to examine the role of high frequency trading, we echo these and other
related concerns.
3 See Letter from Karrie McMillan, General Counsel, Investment Company Institute, to Elizabeth M. Murphy, Secretary,
Securities and Exchange Commission, dated April 21, 2010.
4 See, e.g., Statement of Larry Leibowitz, Chief Operating Officer, NYSE Euronext, at SEC Market Structure Roundtable,
June 2, 2010 (among the moderate steps that should be looked at are obligations to the market by liquidity providers and
incenting of displayed liquidity, as well as additional disclosure and scrutiny of order handling practices, both for
institutional and retail orders).
5 See, e.g., Statement of Sal Arnuk, Co-Founder and Partner, Themis Trading, at SEC Market Structure Roundtable, June 2,
2010 (“While we believe that there may in fact be some beneficial types and attributes of HFT, we also know first-hand that
there are dark and murkier portions.”); but see Statement of Jeffrey Wecker, President & Chief Executive Officer, Lime
Brokerage, at SEC Market Structure Roundtable, June 2, 2010 (“High frequency trading provides a dramatic increase in
liquidity, increased competition, promotes electronic efficiencies and lowers the cost of trading, both through narrower
spreads and lower commissions – all of which have contributed to making the United States equity markets the best in the
world).
6 See Statement of Kevin Cronin, Global Head of Equity Trading, Invesco, at SEC Market Structure Roundtable, June 2,
2010.
Ms. Elizabeth M. Murphy
June 23, 2010
Page 3 of 4
Finally, as panelists recognized, undisplayed liquidity provides an important mechanism for
transactions to interact without displaying the full scale of an investor’s trading interest, thereby
lessening the cost of implementing trading ideas and mitigating the risk of information leakage.7 Other
panelists noted that these venues can impede transparency. We continue to support the Commission’s
efforts to examine the impact of certain undisplayed liquidity on price discovery on the markets, while
balancing the competing goal of protecting fund shareholders and other investors from the effects of
information leakage.
II. Market Structure Issues Arising from May 6 Events
While the roundtable focused on the three major issues highlighted in the concept release, the
events of May 6 and the related market structure issues were a strong underlying theme during the
discussions. In our prior submission, we discussed the need for: (1) updated market-wide and stock-by-
stock circuit breakers; (2) better procedures for resolving clearly erroneous trades; (3) an examination
of the use of market orders; (4) an examination of the inconsistent practices of exchanges regarding
addressing major price movements in stocks; and (5) better coordination across all types of markets.
The Commission has focused on implementing the stock-by-stock circuit breaker pilot8 and the
national securities exchanges and FINRA have now filed proposed rules to clarify the process for
breaking erroneous trades. We urge the Commission to move quickly to address the other market
structure issues noted above. Most significantly, in addition to the market structure issues under the
purview of the Commission that need to be examined, we urge a more robust discussion and
examination of the linkages and interdependency of the equity, options and futures markets. We have
seen how the connection between price discovery for the broader stock market and activity in the
futures markets impacted events on May 6. It will be critical for the development of effective regulation
that these markets work together as new regulations are developed.
* * * * *
7 See, e.g., Statement of Daniel Mathisson, Managing Director, Credit Suisse, at SEC Market Structure Roundtable, June 2,
2010 (“Institutional traders, who collectively invest the savings of millions of Americans, expend a great deal of effort
finding ways to buy and sell large amounts of stock in a manner that will not adversely move stock prices and hurt their
investors. To accomplish this, traders have always used a variety of trading techniques, including the use of “dark”
liquidity.”)
8 The Institute remains concerned about the exclusion, to date, of exchange-traded funds (“ETFs”) from the stock-by-stock
circuit breaker pilot. As we noted in our comment letter on the SRO circuit breaker proposals, given the impact on ETFs of
the market events on May 6, we believe it is imperative that ETFs be included in the circuit breaker pilot program as soon as
possible. See Letter from Karrie McMillan, General Counsel, Investment Company Institute, to Elizabeth M. Murphy,
Secretary, Securities and Exchange Commission, dated June 3, 2010.
Ms. Elizabeth M. Murphy
June 23, 2010
Page 4 of 4
As always, if we can be of any assistance as the Commission continues its examination of
trading and market structure issues, please feel free to contact me directly at (202) 326-5815, or Ari
Burstein at (202) 371-5408.
Sincerely,
/s/ Karrie McMillan
Karrie McMillan
General Counsel
cc: The Honorable Mary L. Schapiro
The Honorable Kathleen L. Casey
The Honorable Elisse B. Walter
The Honorable Luis A. Aguilar
The Honorable Troy A. Paredes
Robert W. Cook, Director
James Brigagliano, Deputy Director
David Shillman, Associate Director
Division of Trading and Markets
Andrew “Buddy” Donohue, Director
Division of Investment Management
U.S. Securities and Exchange Commission
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