Mark-John Ennis
Arlington Heights
Summary
Results-driven executive with extensive experience in strategic leadership and operational excellence. Proven track record in driving growth, optimizing processes, and fostering team collaboration. Exceptional skills in strategic planning, financial management, and stakeholder engagement. Adaptable and reliable, consistently achieving high-impact results in dynamic environments.
Overview
20
20
years of professional experience
1
1
Certification
Work History
Vice President – ETF Portfolio Manager/Trader
Tidal Financial Group
Oak Brook, IL
01.2025 - Current
- Direct a team of traders and analysts, managing derivative (options and swaps) portfolios exceeding +20BN in notional value.
- Member of the OMS team, for rollout/development/upgrades of the trading system.
- Senior leader working on cross-functional team management, broker, vendor capacity.
- Client engagement discussing ETF strategies, onboarding, ETF and CIB education, or concerns.
- Promoted to run the Active ETF Team.
Vice President – Trader
Northern Trust Securities
Chicago, IL
01.2021 - 01.2024
- Traded equities and options for corporate and institutional customers.
- 10B+ buyback program management for corporate clientele.
- Discussed trading strategies and market structure with clients.
- Sourced liquidity by using high-touch desks, low-touch algos, dark pools, and crossing networks.
- Used RFQ to source block liquidity for ETFs, ADRs, and OTC securities.
Vice President – Derivatives
Mizuho Securities
Chicago, IL
01.2017 - 01.2021
- Directed the middle and back-office teams during Asian and European hours.
- Managed the Cash Team responsible for cash movements between Mizuho affiliates and CPs.
- Managed the Collateral Team and collateral exposures for moves to-and-from Mizuho.
- Coordinated with various teams (IT, Legal, HR, Finance) to resolve any desk issues.
- Replaced the Upgraded legacy trading & collateral system to Murex systems.
2nd VP, HFS – Reconciliation & Control OTC
Northern Trust
Chicago, IL
01.2014 - 01.2017
- Managed daily workflows for onshore and offshore teams.
- Served as SME for all OTC products traded, including FX, TRS, IRS & CDS.
- Reported and resolved break activity, both daily and monthly.
- Worked exclusively with the world’s largest registered hedge fund.
- Participated, placed (2nd) and mentored teams in the APRC case challenge.
Trader
Peak 6
Chicago, IL
01.2013 - 01.2013
- Traded equities, options for active customers and HNW accounts.
- Managed portfolios of accounts, with large firm exposure for weekly and monthly option expirations.
- Provided customized trading solutions for customers to reduce market impact.
- Resolved customer issues by reducing firm exposure/loss to retain customers.
- Implemented routing solutions to liquidity providers to gain higher quality execution or representation.
Global Trading & FX Manager
E*TRADE Capital Markets
Chicago, IL
01.2006 - 01.2013
- Delivered global equity and FX trading desk, offering clients liquidity 24/6.
- Traded equity and FX positions using market intelligence and conversations with dealers to determine entry/exit points, gain favorable prices, and price improvements.
- Managed relationships with market centers, vendors, prime brokers, and FX dealers.
- Guided oversight of currency risk and FX book of (cash/spot/forwards/NDFs).
- Participated in desk activities during Asian & European trading hours.
- Resolved equity and FX trading errors. Go-to for resolution of desk issues.
- Generated over $3MM annually in revenue.
Education
Master of Business Administration - Finance and Entrepreneurship
Kellstadt Graduate School of Business, DePaul University
Chicago, IL01-2012
Lecture series - European Union and business in Central Europe
Vienna University of Economics and Business Administration
Vienna, Austria01-2012
Bachelor’s - Business Administration
St. Norbert College
DePere, WI01-1999
International Internship Program - undefined
Richmond College
London, England01-1998
Skills
- Highly proficient in Microsoft Office with emphasis in Excel, Bloomberg, Bloomberg’s OMS, Murex, Flex OMS, REDIPlus OMS, Reuters Eikon, ADP/Broadridge, Lotus Notes, Barclays BARK, JPM’s Morgan Direct & Morcom, Hotspot FX, various Citadel technologies, and internet proficient
Certification
- Current FINRA Series 7, 57, 63, 99 - CRD#4125622 – Past Series 4, 24, 65
- Certified Treasury Professional – exam passed July 2015
Timeline
Vice President – ETF Portfolio Manager/Trader
Tidal Financial Group
01.2025 - Current
Vice President – Trader
Northern Trust Securities
01.2021 - 01.2024
Vice President – Derivatives
Mizuho Securities
01.2017 - 01.2021
2nd VP, HFS – Reconciliation & Control OTC
Northern Trust
01.2014 - 01.2017
Trader
Peak 6
01.2013 - 01.2013
Global Trading & FX Manager
E*TRADE Capital Markets
01.2006 - 01.2013
Lecture series - European Union and business in Central Europe
Vienna University of Economics and Business Administration
Bachelor’s - Business Administration
St. Norbert College
International Internship Program - undefined
Richmond College
Master of Business Administration - Finance and Entrepreneurship
Kellstadt Graduate School of Business, DePaul University