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JR

Joan K. Rockey

SIMPLEX TRADING
Chicago, IL 60604
Some features on this profile are disabled
CRD#: 4562343
JR

Professional summary

Joan Kathryn Rockey, who also goes by Joan Kathryn Grabowski, is a registered financial professional currently at SIMPLEX TRADING, LLC located in Chicago, Illinois.

Joan is registered as a RR (Registered Representative) and started their career in finance in 2008. Joan has worked at 2 firms and has passed the Series 99TO, SIE, Series 7 and Series 27 exams.

top-8-questions

Question & Answer

Are you a "fiduciary"?
No

Aliases

Joan Kathryn Grabowski

Other business activities

Outside business activity is any business or activity undertaken by an advisor that is outside the scope of their relationship with their firm (e.g., consulting services, real estate, freelance work, teaching, etc.). Investors should stay informed about these activities to ensure no conflicts of interest.
The advisor shows no other business activity.

Blog Corner

CRS (Client Relationship Summary) - BD

Click below to view Joan Kathryn Rockey's CRS (Customer Relationship Summary).

Certified licenses

Advisors may have various certifications and credentials from different organizations. AdvisorCheck highlights these seven certifications - AIF®, CFP®, ChFC®, CFA, CLU®, CIMA®, CPWA®
None

Experience

Current

June 11, 2025 - Present

SIMPLEX TRADING, LLC

Office #1: 230 S. Lasalle Street Suite 08-500, Chicago, IL 60604
BD
CRD#: 153585
Chicago, IL
Past

April 1, 2008 - December 31, 2008

OPTION OPPORTUNITIES COMPANY

BD
CRD#: 34270
CHICAGO, IL

State Registrations and Notice Filings

Listed states reflect where the advisor is authorized to serve clients under state regulations.

Visual representation of state registrations

This advisor is not registered in any state.

Exams

General Industry/Product Exam
RR
Series 99TO
Date: 10/22/2025
Operations Professional Examination
General Industry/Product Exam
RR
SIE
Date: 10/22/2025
Securities Industry Essentials Examination
General Industry/Product Exam
RR
Series 7
Date: 7/20/2006
General Securities Representative Examination
Principal/Supervisory Exam
RR
Series 27
Date: 8/5/2025
Financial and Operations Principal Examination
SRO Registrations
RR
BOX Exchange LLC
SRO Registrations
RR
Cboe BZX Exchange, Inc.
SRO Registrations
RR
Cboe C2 Exchange, Inc.
SRO Registrations
RR
Cboe EDGX Exchange, Inc.
SRO Registrations
RR
Cboe Exchange, Inc.
SRO Registrations
RR
FINRA
SRO Registrations
RR
MEMX LLC
SRO Registrations
RR
MIAX Emerald, LLC
SRO Registrations
RR
MIAX PEARL, LLC
SRO Registrations
RR
MIAX Sapphire
SRO Registrations
RR
Miami International Securities Exchange, LLC
SRO Registrations
RR
NYSE American LLC
SRO Registrations
RR
NYSE Arca, Inc.
SRO Registrations
RR
Nasdaq BX, Inc.
SRO Registrations
RR
Nasdaq GEMX, LLC
SRO Registrations
RR
Nasdaq ISE, LLC
SRO Registrations
RR
Nasdaq MRX, LLC
SRO Registrations
RR
Nasdaq PHLX LLC
SRO Registrations
RR
Nasdaq Stock Market

Current Firm

ST
SIMPLEX TRADING, LLC
MULTIPLEX TRADING LLC | SIMPLEX TRADING, LLC | SET TRADING PARTNERS, LLC

CRD#: 153585 / SEC#: , 8-68556

BD
Broker-Dealer Firm Regulated by FINRA (Chicago district office)
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Contact information

Main Address
230 S. Lasalle Street Suite 08-500, Chicago, IL 60604
Mailing Address
230 S. Lasalle Street Suite 08-500, Chicago, IL 60604
Phone number
(312) 360-2440
Established
Delaware since 02/22/2010
Firm type
Limited Liability Company
Fiscal year end
December
Firm Size
Small
# of Employees

Documents

Direct owners and executive officers

NamePositionCRD#
SIMPLEX HOLDCO, LLCMANAGING MEMBER, OWNER
HAUFE, DAVID HARMONCHIEF TECHNOLOGY OFFICER5939783
KERLIN, DENNIS JOHNCHIEF COMPLIANCE OFFICER4757638
ROCKEY, JOAN KATHRYNCHIEF FINANCIAL OFFICER, FINOP4562343
SWANSON, ERIK THEODORECHIEF EXECUTIVE OFFICER5941677

Disclosures

Regulatory Event4

Red Flags

Disclosures can be potential red flags, including customer disputes, regulatory fines, employer terminations, bankruptcies, judgments, liens, or certain criminal activities.

Check for any disclosures as part of your thorough research when choosing an advisor.

Company Information

SIMPLEX TRADING, LLC

CRD#: 153585Chicago, IL 60604

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