Commentary

Salil Pachare and Ilia Rainer
Traders Magazine Online News

Does the Tick Size Affect Stock Prices?

The Securities and Exchange Commission has recently released a whitepaper examining the change in tick sizes on trading based on data it collected during the Tick Size Pilot.

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March 1, 2003

Trading & Technology Directory

By Editorial Staff

Also in this article

This directory contains firms that fit into the following categories:

ECNs/ATSs, Exchanges, Furniture and Equipment, Market Data/News/ Analytics, Networks, Order Management Systems, Trading Software/ Support/Consulting, and Trader Workstations.

ECN/ATS

Archipelago L.L.C.

100 South Wacker Drive

Chicago, IL 60606

Phone: 312-960-1696

Fax: 312-960-1369

Contact: Gerald D. Putnam, CEO

www.archipelago.com

Belzberg Technology

55 Broad Street, 28th Floor

New York, NY 10004

Phone: 212-943-1400

Fax: 212-943-1515

Contact: Darren Richarz, (416) 360-1812

dricharz@belzberg.com

Bloomberg Tradebook

499 Park Ave.

New York, NY 10022

Phone: 212-318-2000

Bridge Trading, A Reuters Company

717 Office Parkway

St. Louis, MO 63141

Phone: 314-468-3324

Contact: Stephanie Ludmer

www.reuters.com

BRUT

55 Broadway 4th Floor

New York, NY 10006

Phone: 212-952-0280

Contact: Lisa Schwartzman

www.ebrut.com

eSpeed

299 Park Avenue, 32nd Floor

New York, NY 10016

Phone: 212-821-6756

Contact: Chris Pepe

cpepe@espeed.com

GFINet

25 Christopher Street, 4th Floor

London, UK EC2A 2BS

Phone: 44-207-422-1040

Fax: 44-207-877-8065

Contact: Michel Everaert

michel.everaert@gfinet.com

www.gfinet.com

Gl Trade

261 Madison Ave.

New York, NY 10016

Phone: 212-599-0510

Fax: 212-599-0509

Contact: Jeff Patrick

jpatrick@gl-us.com

www.gl-us.com

Global Trade Technologies

45999 Center Oak Plaza

Sterling, VA 20166

Phone: 800-809-5694

Contact: Peter Adams

www.gtt.com

GlobeTek Solutions

1983 Marcus Ave.

Lake Success, NY 11042

Phone: 800-431-1602

Contact: Bradley Prader

www.globeteksolutions.com

Interactivebrokers.com

440 LaSalle Street

Chicago, IL 60605

Contact: Carla Cavaletti

www.interactivebrokers.com

Instinet Corporation

3 Times Square

New York, NY 10036

Phone: 212-310-7864 or 877-INSTINET

www.instinet.com

ITG Inc.

380 Madison Avenue

New York, NY 10017

Contact: Mike Neumark, Senior Vice President

Mneumark@itginc.com

www.itginc.com

NYSE: ITG

Member SIPC, NASD

Lava Trading

95 Morton Street, 7th Floor

New York, NY 10014

Phone: 212-609-0151

Fax: 212-609-0101

Contact: George Hessler

george.hesseler@lavatrading.com

Liquidnet Holdings, Inc.

498 7th Avenue, 12th Floor

New York, NY 10018

Phone: 646-674-2000

Fax: 646-674-2003

www.liquidnet.com

Mark Securities, Inc.

36 W. 44th Street, Suite 1201

New York, NY 10036

Phone: 646-728-7023

Fax: 646-728-7029

Contact: Daniel Morrissey, Executive Vice President

danmorr@xchgtech.com

NeoNet

400 Madison Ave, 2nd Floor

New York, NY 10017

Phone: 212-980-7600

Contact: Sharon Salamon, Sr. Sales Executive

www.nnsec.com

Neovest, Inc.

2 Piedmont Center, Suite 200

Atlanta, GA 30305

Phone: 404-260-1361

Contact: Adam C. Beeler, Senior Vice President

abeeler@neovest.com

www.neovest.com

NYFIX Millennium

100 Wall St. 21st floor

New York, NY 10004

Phone: 212-809-3542

Contact: Jennifer Plaia

www.nyfix.com

Pinksheets

304 Hudson Street, 2nd Floor

New York, NY 10013

Phone: 212-896-4476

Fax: 212-868-3846

Contact: Cromwell Coulson

cromwell@pinksheets.com

www.pinksheets.com

REDIProducts

Phone: 212-433-7334

www.redi.com

royalblue

17 State St.

New York, NY 10004-1501

Phone: 212-269-9000

www.fidessa.com

Rushmore Financial Group

One Galleria Tower

13355 Noel Road, Suite 300

Dallas, TX 75240

Phone: 972-308-8811

Fax: 972-364-4740

Contact: D.M. (Rusty) Moore, Jr., Chairman and CEO

rusty.moore@rushgroup.com

Sonic Financial Technologies

67 Wall Street

New York, NY 10005

Phone: 212-905-7663

Fax: 212-363-3796

Contact: Eugene Choe, Managing Director

echoe@sonicft.com