MarketAxess Reschedules 2012 Third Quarter Conference Call as a Result of Severe Weather Conditions

  MarketAxess Reschedules 2012 Third Quarter Conference Call as a Result of
  Severe Weather Conditions

Business Wire

NEW YORK -- October 30, 2012

As a result of severe weather conditions, MarketAxess Holdings Inc.(Nasdaq:
MKTX), the operator of a leading electronic trading platform for U.S. and
European corporate bonds, emerging markets bonds and other types of
fixed-income securities, has rescheduled its conference call on the Company’s
2012 third quarter results to Friday, November 2, 2012 at 9:00 a.m. Eastern
time.

Richard M. McVey, chairman and chief executive officer, andAntonio L. DeLise,
chief financial officer, will host the conference call to discuss the
Company’s financial results and outlook.

To access the conference call, please dial 877-299-4454 (U.S.) or
+1-617-597-5447 (international). The passcode for all callers is 42452936. The
Company will also host a live audio Webcast of the conference call on the
Investor Relations section of the Company's website at
http://www.marketaxess.com.

A replay of the call will be made available by dialing 888-286-8010 (U.S.) or
+1-617-801-6888 (international) for one week after the announcement. The
passcode for replay callers is 41146492. The Webcast will also be archived
onhttp://www.marketaxess.comfor 90 days following the announcement.

About MarketAxess

MarketAxess operates a leading electronic trading platform that enables
fixed-income market participants to efficiently trade corporate bonds and
other types of fixed-income instruments using MarketAxess’ patented trading
technology. Over 1,000 investor and broker-dealer firms are active users of
the MarketAxess trading platform, accessing global liquidity in U.S.
high-grade corporate bonds, European bonds, high yield and emerging markets
bonds, agency bonds, asset-backed and preferred securities and credit default
swaps. MarketAxess also offers a number of trading-related products and
services, including: market data to assist clients with trading decisions;
connectivity solutions that facilitate straight-through processing; technology
services to optimize trading environments; and execution services for
exchange-traded fund managers and other clients.

MarketAxess maintains its headquarters in New York and has offices in London,
Chicago, Salt Lake City, Hong Kong, Singapore and São Paulo. For more
information, please visitwww.marketaxess.com.

Contact:

MarketAxess Holdings Inc.
Investor Relations:
Tony DeLise, +1-212-813-6017
Media Relations:
Florencia Panizza, +1-212-813-6029