Legal Sidebari 
 
UPDATED: The Latest on the SEC’s 
Consideration of the Proposed Acquisition of 
Chicago Stock Exchange 
March 7, 2018 
UPDATE: On February 15, 2018, the SEC disapproved CHX’s proposed rule change. The SEC based its 
decision on CHX’s inability to provide sufficient documentation verifying the relationships between and 
the sources of funds used by certain proposed upstream owners. Because of these deficiencies, the SEC 
explained that it was unable to find that the proposed rule change was consistent with the Exchange Act’s 
requirements that (1) CHX enforce compliance with ownership and voting limitations in its proposed 
rules, and (2) the SEC be capable of exercising sufficient oversight over national securities exchanges. 
On March 5, CHX announced that it will no longer pursue a deal with NA Casin Holdings in light of the 
SEC’s decision.  
The original post from August 29, 2017, follows below. 
In the latest development in a transaction originating last year, on August 9, the Securities and Exchange 
Commission (SEC or Commission)
 stayed an
 order (i.e., temporarily prevented the order from going into 
effect) issued by its Division of Trading and Markets (Division) approving a proposed rule concerning the 
acquisition of the Chicago Stock Exchange (CHX). CHX is one of 21 national securities exchanges 
registered with the SEC, and a group of investors that includes a number of Chinese entities with possible 
ties to the Chinese government is attempting to acquire the exchange. The proposed rule would approve 
changes to the certificates of incorporation and bylaws of CHX and its parent company to effectuate the 
proposed acquisition. The Division approved the acquisition subject to an amendment that purported to 
address concerns raised in comments that were provided to the SEC over the past several months. Perhaps 
most notably, the comments included those filed by a number of federal lawmakers who voiced concerns 
over the possibility of Chinese-government influence over the prospective acquirers of CHX. 
As background, the Securities and Exchange Act of 1934 (the “Exchange Act”)
 controls what types of 
entities can operate as securities exchanges. The Exchange Act provides that an entity may operate as a 
securities
 exchange only if it is registered with the SEC as a national securities exchange under
 Section 
6 of the Exchange Act or exempted from such registration by the SEC due to the limited volume of 
transactions it processes. When an exchange registers with the SEC as a national securities exchange, it 
becomes a self-regulatory organization
 charged with “certain quasi-governmental functions and 
Congressional Research Service 
https://crsreports.congress.gov 
LSB10092 
CRS Legal Sidebar 
Prepared for Members and  
Committees of Congress 
 
Congressional Research Service 
2 
responsibilities” that are “fundamental to the enforcement of the federal securities laws.” Specifically, a 
national securities exchange
 must (1) enforce compliance of its members with federal securities laws and 
regulations and with its own internal rules; (2) discipline its members when it finds such violations; and 
(3) promulgate rules related to fair representation in governance, burdens on competition, the prevention 
of fraudulent or manipulative practices, the promotion of trade, and the prevention of unfair 
discrimination. Moreover, the Exchange Act requires that national securities exchanges obtain 
Commission approval for proposed rule changes, and that rule changes proposed by national securities 
exchanges be published in the Federal Register for notice and comment. The Commission may approve a 
proposed rule change only if it finds that the change would be consistent with Section 6’s general 
requirements for registration as a national securities exchange. 
With these requirements in mind, CHX filed a
 proposed rule change with the Commission on December 
6, 2016, concerning the acquisition of CHX by North America Casin Holdings, Inc. (“NA Casin 
Holdings”), an entity in which a Chinese firm, Chongqing Casin Enterprise Group Co., LTD (“Chongqing 
Casin”), owns the largest stake. As discussed, the proposed rule would approve changes to the certificates 
of incorporation and bylaws of CHX and its parent company to effectuate the proposed acquisition. 
After the Commission published the proposed rule, it received numerous comments opposing the 
transaction, including a December 22, 2016
 letter from five Members of the House of Representatives 
“urg[ing the Commission] to consider the negative impacts Chinese state-affiliated ownership of [CHX] 
will have on national security and the financial security of the American marketplace.” Specifically, the 
Members argued that “Chinese markets maintain zero transparency and are heavily dominated by the 
Chinese State Council.” Because of this lack of transparency and Chongqing Casin’s involvement “in a 
number of market sectors that would require close ties to the state,” the Members asserted that “there is 
no way to refute concerns related to government influence over [Chongqing Casin].” The Members 
further claimed that because “the Chinese government remains the number one state-sponsor of cyber-
espionage and corporate theft,” Chinese-government influence over the prospective acquirers of CHX 
poses dangers to U.S. national security and the intellectual property of American companies. 
In January 2017, the Commission
 instituted proceedings to determine whether to approve the proposed 
rule. After receiving 21 additional comments and a response letter from CHX, the Commission
 opted, 
pursuant to its
 authority under the Exchange Act, to extend the 180-day period for considering the 
proposed rule by 60 days, making the new deadline August 9, 2017. During the extended comment 
period, 11 Members of the House (including 3 who had signed the first letter)
 wrote to the Commission 
on July 10, 2017 and “strongly urge[d]” it to deny the proposed transaction. The letter expressed concern 
about the “opaque upstream ownership” of the prospective acquirers. The Members further maintained 
that other Chinese entities operating in the U.S. have attempted to evade regulation by invoking
 sovereign 
immunity and limitations on the
 extraterritorial application of U.S. laws. Thus, the lawmakers argued, the 
proposed transaction appeared to be inconsistent with Section 6 of the Exchange Act, which, as discussed, 
requires that national securities exchanges be able to comply with and enforce rules concerning fraudulent 
and manipulative practices and investor protection. Senator Joe Manchin also
 wrote to the Commission 
during the extended comment period to express concern about Chinese-government influence over the 
prospective acquisition of CHX and about the national-security implications of the proposed 
transaction.    
In an apparent response to these concerns, on August 7 CHX filed an
 amendment to its proposed rule 
change. The amendment altered the proposed certificates of incorporation of CHX’s parent company and 
NA Casin Holdings (and other CHX documents) to require, among other things: 
  notice be provided to the Commission of any changes in the ownership of NA Casin 
Holdings; 
  
Congressional Research Service 
3 
  periodic independent audits to ensure that CHX is complying with ownership limitations 
imposed elsewhere in the proposed rule; 
  that CHX adopt rules to ensure that only CHX regulatory personnel have access to 
Consolidated Audit Trail data (“CAT data”), and that CHX regulatory personnel do not 
provide CAT data to any other personnel of CHX’s parent or NA Casin Holdings, or to 
any upstream beneficial owners of those corpor
ations. (CAT data generally consist of 
records of orders, cancellations, and completed trades related to certain securities that 
national securities exchanges must submit to a central repository overseen by the SEC.). 
The amendment also supplemented certain representations made by each owner of NA Casin Holdings 
attesting that it is not controlled or owned by any governmental entity. Finally, the amendment provided 
signed “Investor Statements” from each owner of NA Casin Holdings irrevocably submitting to the 
jurisdiction of U.S. federal courts. 
When the consideration period closed on August 9, the Division issued an order approving the proposed 
rule as amended, but the Commission
 stayed the order that same day. In the order, the 
Division
 concluded that the proposed rule change was consistent with Section 6 of the Exchange Act in 
light of the amendment’s proposed ownership and voting limitations, provisions relating to compliance 
with U.S. law, consent to U.S. jurisdiction by prospective upstream owners, books and records provisions, 
and notice and audit requirements. The order also noted that the Department of the Treasury’s Committee 
on Foreign Investment in the United States, which is responsible for reviewing certain transactions 
involving foreign investors for national security concerns, had approved the proposed transaction. 
It is unclear when the stay will be lifted, as the Commission’s notice of the stay indicates that the order is 
stayed “until the Commission orders otherwise.” If the Commission lifts the stay and acts on the order, its 
decision would be subject to judicial review if a party injured by the SEC’s order pursues litigation. As 
discussed,
 Section 6 of the Exchange Act requires that national securities exchanges be capable of 
enforcing federal securities laws and regulations, and of adopting and enforcing rules of their own related 
to fair representation in governance, burdens on competition, and the prevention of fraudulent or 
manipulative practices, among other things. A litigant seeking to challenge the Commission’s final 
decision to approve or disapprove the proposed rule change pursuant to Section 6 would need to 
demonstrate that the decision is 
“arbitrary, capricious, an abuse of discretion, or otherwise not in 
accordance with law.” (For more information on the types of agency actions that violate this standard, see 
this
 CRS report). 
Given the interest several Members of Congress have voiced in the proposed rule change, 
and
 recent increases in
 Chinese investment in the U.S. more generally, the Commission’s 
ultimate decision on the CHX acquisition is likely to generate additional consideration from the 
legislative branch and beyond. More broadly, the SEC’s treatment of the CHX deal may have, at 
least in the view of some
 commentators, far-reaching effects for how regulatory agencies will 
generally approach Chinese investments in the U.S. financial sector going forward, making the 
CHX acquisition noteworthy.   
  
Congressional Research Service 
4 
 
Author Information 
 Jay B. Sykes 
   
Legislative Attorney  
 
 
 
Disclaimer 
This document was prepared by the Congressional Research Service (CRS). CRS serves as nonpartisan shared staff 
to congressional committees and Members of Congress. It operates solely at the behest of and under the direction of 
Congress. Information in a CRS Report should not be relied upon for purposes other than public understanding of 
information that has been provided by CRS to Members of Congress in connection with CRS’s institutional role. 
CRS Reports, as a work of the United States Government, are not subject to copyright protection in the United 
States. Any CRS Report may be reproduced and distributed in its entirety without permission from CRS. However, 
as a CRS Report may include copyrighted images or material from a third party, you may need to obtain the 
permission of the copyright holder if you wish to copy or otherwise use copyrighted material. 
 
LSB10092 · VERSION 2 · NEW