Tourmaline Partners

What Tourmaline Partners does

Tourmaline Partners, LLC is a privately held outsourced trading solutions firm founded in 2011 by CEO Aaron Hantman and headquartered in Stamford, Connecticut. The firm operates as an independent buy-side trading desk, providing institutional investment managers with execution services in global equities, derivatives, and ETFs across more than 50 emerging and developed markets. Tourmaline offers two primary engagement models: fully outsourced trading for firms lacking internal trading infrastructure (typically emerging hedge funds and family offices), and supplemental trading that augments in-house teams by extending broker reach, providing market intelligence, and handling offshore or small-cap liquidity. The firm serves over 350 institutional clients spanning emerging managers at launch through trillion-dollar asset managers, family offices, sovereign wealth funds, endowments, and pension funds, with offices in Stamford, London, Sydney, and Dubai.

The technology stack combines proprietary tools with third-party OMS, EMS, and TCA solutions. Proprietary components include an order entry system, a commission management infrastructure supporting CSAs, CCAs, aggregation, and attributed trading, and a CRM and analytics platform used for client reporting. The firm maintains 400+ global sell-side broker relationships providing access to 45+ algo suites, dark pools, and ATSs, and deploys 35+ traders averaging 15+ years of experience, with a dedicated four-person derivatives team averaging 25+ years. Regulatory memberships include FINRA, SIPC, SEC (US parent), FCA (UK subsidiary Tourmaline Europe, LLP), DFSA (DIFC branch), and an Australian Financial Services exemption. The firm was named 2021 Category Leader in Outsourced Trading Solutions by Chartis Research.

Tourmaline generates revenue primarily through transaction commissions on client trades, with clients able to pay via fund commissions (bundled or unbundled) or directly through management company payments under multi-year contracts. Pricing is customized per client and is not publicly disclosed. The firm operates a relationship-driven enterprise sales motion targeting trading desk and operations leadership at institutional managers, supported by thought leadership content, industry conference participation (including STA events), earned media coverage, and direct business development outreach. In May 2020, Copley Equity Partners acquired a majority stake, marking the first external investment in the company's history.

Name

Tourmaline Partners

Legal name

Tourmaline Partners, LLC

Website

https://www.tourmalinellc.com/

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

Tourmaline Partners is a privately held outsourced trading firm that provides global equities, derivatives, and ETF execution to 350+ institutional clients including asset managers, hedge funds, family offices, and sovereign wealth funds across the US, UK, APAC, and Middle East.

Ownership category

akta.pro rank

Product category

Outsourced Trading Services

SIC

Security & Commodity Brokers, Dealers, Exchanges & Services (6200), Security Brokers, Dealers & Flotation Companies (6211)

akta.pro primary industry

Derivatives & Futures Brokerage (FSAEACAL)

akta.pro secondary industry

Options Brokerage (FSAEACAI)

Keywords

• Outsourced trading services
• Supplemental trading solutions
• Institutional equities execution
• Equity derivatives trading
• Commission management

Headquarters

HQ city

Stamford

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales, Others

Revenue model

1. Trading Commission Revenue: Tourmaline generates revenue through fund commissions when executing trades on behalf of clients. Clients can pay for services via trading commissions (bundled or unbundled) and/or the management company directly. The firm manages commission wallets via attributed trading, CCAs, CSAs and commission aggregation.
2. Fully Outsourced Trading Solutions: Complete outsourcing of trading function where Tourmaline handles entire trade lifecycle for clients who prefer not to maintain internal trading teams

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Tourmaline Partners provides institutional investment managers with fully outsourced and supplemental trading solutions in global equities, listed equity derivatives, and ETFs. Acting as a large buy-side trading desk, the firm executes trades on behalf of clients across 50+ emerging and developed markets, leveraging 400+ sell-side broker relationships and a proprietary commission-management infrastructure (CCAs, CSAs, aggregation, attribution). Clients can engage Tourmaline for full trade-lifecycle outsourcing or to augment in-house trading teams with global liquidity access, market intelligence, and TCA reporting.

Product overview

Tourmaline Partners provides a comprehensive suite of trading solutions comprising two core offerings: Fully Outsourced Trading Solutions (complete trading function outsourcing) and Supplemental Trading Resources (augmentation of in-house trading teams). These are supported by specialized modules including Commission Management (CSAs, CCAs, aggregation, attribution), Equity Derivatives Trading, TCA reporting, and Market Intelligence Services. The firm trades global equities, derivatives, and ETFs across 50+ markets, positioning itself as a large buy-side trading desk that connects institutional clients to 400+ sell-side brokers without competing with the sell-side in their core businesses of research, banking, and prime brokerage.

Differentiator

Problem solved

Functional benefit

Products and services

• Fully Outsourced Trading Solutions Complete outsourcing of the entire trading function to Tourmaline, reducing costs, improving execution and leveraging the firm's infrastructure. Designed for emerging hedge funds at launch or firms that do not maintain internal trading resources. Tourmaline handles the full trade lifecycle as the client's single broker counterparty with access to 400+ sell-side relationships.
• Supplemental Trading Resources Augmentation of in-house trading teams at larger-AUM managers to expand global access to liquidity and market intelligence. Tourmaline acts as a single broker counterparty providing access to 400+ sell-side brokers without requiring clients to onboard additional brokers directly.
• Commission Management Comprehensive commission-wallet management infrastructure including CSAs (Commission Sharing Arrangements), CCAs, commission aggregation and attributed trading to meet sell-side research commitments and manage global research funding for institutional clients.
• Equity Derivatives Trading Trading of listed equity and equity index options for institutional clients in the U.S., U.K. and Asia-Pacific regions. Served by a dedicated derivatives team of four traders averaging more than 25 years of experience.
• Global Equities Trading Execution in global equities across 50+ emerging and developed markets, provided by 35+ traders in the U.S., Europe and Australia with 24x6 coverage. Trades a notional equity value of $450B+ in 2021.
• ETF Trading Exchange-traded fund trading services provided as part of Tourmaline's comprehensive trading solutions offering for institutional investment clients across global markets.
• Transaction Cost Analysis (TCA) Pre-trade and post-trade transaction cost analysis for reporting and compliance, providing detailed execution quality measurement and reporting as part of Tourmaline's trading operations.
• Market Intelligence Services Real-time market intelligence, color and information flow from 400+ global sell-side relationships — including sales traders, sector traders, block traders, delta-one desks, ECM desks and research salespeople — to support investment decision-making for clients.

Quantifiable outcome

• 100% satisfaction rate among institutional investors using outsourced trading desks
• +2 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature4 records

Partnerships

One partnership is on record.

• Brown Brothers Harriman & Co. (BBH)coreChannel Partner/ Reseller/ Distributor · 2 October 2023BBH expanded its Connectors Program to include Tourmaline Partners, making Tourmaline's execution services available to BBH clients. This partnership provides BBH clients with flexible front office trading solutions in global equities, derivatives, and ETFs, complementing BBH's foreign exchange and investment operations solutions. The integration enables clients to combine Tourmaline's trading solutions with BBH's technology, data services, and FX trading solutions for a comprehensive operating model.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Instinet: Nomura-owned institutional agency broker and one of the largest outsourced and electronic trading providers globally. Directly competes with Tourmaline in institutional equities execution, block trading, and outsourced trading desk services for asset managers.
• Virtu Financial: Global electronic market maker and execution services provider following its acquisition of ITG. Offers agency execution, outsourced trading, and analytics that directly overlap with Tourmaline's institutional trading solutions.
• Weeden & Co. Boutique institutional broker-dealer providing execution services to asset managers, hedge funds, and family offices. Competes with Tourmaline in agency execution and outsourced trading, particularly for smaller and mid-sized institutional accounts.
• TD Cowen: Institutional broker-dealer offering outsourced execution services to asset managers and hedge funds following the legacy Cowen and Convergex execution franchises. Competes with Tourmaline across outsourced trading, commission management, and equity execution.
• Liquidnet: Institutional block trading network that has expanded into outsourced and supplemental trading solutions for asset managers. Overlaps directly with Tourmaline's large-block, dark-pool, and OTS offerings for similar buy-side clients.
• Cantor Fitzgerald: Diversified financial services firm with a sizable institutional equity execution and outsourced trading desk serving asset managers and hedge funds. Comparable to Tourmaline in offering supplemental and fully outsourced trading solutions.
• Rosenblatt Securities: Agency execution and institutional trading firm serving hedge funds and asset managers. Directly comparable to Tourmaline in providing outsourced equity trading, derivatives execution, and commission management services.
• Loop Capital Markets: Minority-owned institutional broker offering equity execution and trading services to asset managers and hedge funds. Operates a comparable outsourced execution model for clients seeking agency trading solutions.

Broad incumbents

• Goldman Sachs: Bulge-bracket investment bank offering large-scale agency execution, electronic trading, and outsourced trading solutions as part of a broader franchise. Overlaps with Tourmaline's services but within a much wider investment banking, trading, and prime brokerage platform.
• JPMorgan: Global bulge-bracket bank offering institutional execution, electronic trading, and outsourced trading capabilities within a diversified investment banking and asset management platform. Competes with Tourmaline in outsourced execution for large institutional clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights8 records

Customer concentration

• LinkedInlinkedin.com/company/tourmaline-partners-llc

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tourmaline Partners