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Transaction cost analysis: a buyer's guide
What we list in this category, where each entry came from, and the questions worth pressing on before you commit.
Every entry below was recorded from a page we opened, and each carries the source we read. Where we could not establish something it is left blank rather than guessed. Read how this site works if you want the detail.
What we list
Every product we hold in this category, in one list. A supplier that has run in production for twenty years and one that launched last year appear together and carry the same fields, because that is the comparison a buyer has to make. Each entry's founding year and owner are on its company page where the company states them, and both bear on continuity: long service is evidence a supplier will still be there, and a young supplier may offer capability and pricing the incumbents do not while carrying fewer references at your size.
- ACA Transaction Cost Analysis — Cross-asset TCA assembled by acquisition, adding Global Trading Analytics and then FX Transparency (founded 2009, Framingham, Massachusetts) on 10 March 2026. source
- Arcesium Intelligence — An agent layer over Arcesium's Opterra and Aquata platforms, launched 20 May 2026, with pre-built agents for P&L decomposition, NAV review, execution cost analytics and report generation, plus a studio for firms to build their own. source
- BMLL Data Lab — A data science platform holding years of harmonised Level 3 order book history with built-in analytics and scalable compute, used for backtesting, transaction cost analysis and market structure research. source
- BMLL Vantage — A no-code visual application over the same Level 3 order book data, giving trading and execution teams more than 500 market quality and liquidity metrics to chart, share and export to Excel. source
- BTCA (Bloomberg Transaction Cost Analysis) — Post-trade analytics measuring execution quality against more than 250 benchmarks across equities, fixed income, FX and crypto, on the Terminal or via API. source
- Best Execution and TCA (PATH) — Best execution testing and TCA on the PATH regulatory platform, sold alongside trade surveillance, communications surveillance and transaction reporting. source
- BestEx Research — Independent provider of execution algorithms and trade analytics for equities and futures. source
- BestX — Independent-architecture TCA and best execution analytics across FX, fixed income, equities, futures, commodities and crypto; acquired by State Street in September 2018. source
- Bloomberg EMSX — Bloomberg's multi-asset EMS, branded EMSX for equities, FXEM for FX and TSOX for fixed income, derivatives and futures. source
- Charles River IMS (Charles River Trader OEMS) — Multi-asset order and execution management inside a front-office investment platform; the vendor says about 300 investment managers in 30 countries trade on it. source
- CoinRoutes — Digital-asset trading platform for asset managers and hedge funds combining execution algorithms and smart order routing across exchanges with order management, TCA and risk monitoring. source
- Ediphy Analytics — Model-based fixed income pricing (liveMid, fairMid), liquidity scoring and transaction cost analysis delivered to trading, risk and compliance teams. source
- FlexONE OEMS — Buy-side order and execution management system, part of a wider Flex trading suite covering fixed income, FX, futures and options. source
- FlexTCA — Pre-trade to post-trade TCA across equities, FX, futures and fixed income, feeding FlexAlgoWheel for performance-based routing, with 80-plus prebuilt compliance reports. source
- FlexTRADER EMS — Broker-neutral multi-asset EMS with 300+ broker connections, an algo wheel (FlexAlgoWheel) and built-in TCA. source
- ISS LiquidMetrix TCA — Best execution and trade cost analysis for asset managers and brokers with venue and broker performance breakdowns across equities, fixed income, derivatives and FX. source
- InfoReach TMS — Independent broker-neutral multi-asset order and execution system with its own algos plus 60+ third-party algo providers. source
- MarketAxess Transaction Cost Analysis — Venue-native fixed income TCA and execution analytics, one of the most widely used bond TCA tools on buy-side desks. source
- NCFX TCA — In-flight and post-trade FX transaction cost analysis priced off its own FCA-regulated benchmark data, independent of any bank or broker. source
- Newport — Multi-asset EMS for institutional traders covering equities, options and futures, sold in buy-side and sell-side editions. source
- OneTick Best Execution and TCA — Best execution and TCA built on the OneTick tick-data platform, sold within the OneTick RegTech suite alongside trade and market surveillance. source
- Opensee Trade Analytics — Unified trade repository with real-time TCA, MiFID II best execution reporting and natural-language querying; raised an 11 million euro Series A in 2022 led by Omnes Capital. source
- PATH AI — Regulatory platform bundling trade surveillance, eComms monitoring and archiving, best execution and EMIR/MiFIR transaction reporting. source
- Quod TCA (Analytical Execution Performance) — Real-time and post-trade execution analytics across equities, derivatives and FX, integrated natively with Quod's order and execution management systems. source
- SteelEye Compliance Platform — Single data platform combining trade surveillance, communications surveillance, WORM archiving and trade reconstruction for buy-side firms. source
- Surveyor — Trade surveillance and best execution analytics sold to hedge funds, asset managers, prop firms and brokers, with cross-product manipulation detection. source
- TORA — Multi-asset OEMS for institutional execution workflows, sold alongside and integrated with AlphaDesk. source
- TT TCA — Multi-asset transaction cost analysis built on the acquired Abel Noser Solutions analytics, covering the full trade lifecycle including an equity broker league table. source
- Talos Post-Trade Analytics — Digital-asset TCA that decomposes slippage against arrival price, TWAP and VWAP by strategy, venue and participation rate for institutional crypto desks. source
- Talos platform — Institutional digital-asset trading platform offering FIX, REST and WebSocket connectivity to many crypto liquidity providers through one interface; raised a 40 million dollar Series A from a16z, PayPal and Fidelity. source
- TradeFabric.ai — Real-time adaptive TCA and trade analytics with a visual interface and a pre-trade recommendation model for single stocks and baskets. source
- Tradefeedr Trading Data Platform — Independent FX execution analytics and TCA delivered as a shared API data layer between asset managers, banks and liquidity providers. source
- Tradeweb Transaction Cost Analysis — Venue-native TCA for fixed income and other Tradeweb markets, used by buy-side desks to assess execution strategies. source
- Transaction Cost Analysis — Independent multi-asset TCA covering equities, FX, fixed income, CDS, loans, futures, options and OTC derivatives, with toxic liquidity surveillance. source
- Virtu Analytics (TCA) — Multi-asset TCA built on the acquired ITG analytics franchise, using a global peer database and broad benchmark library. source
- Virtu Triton (Triton Valor) — Broker-neutral multi-asset EMS covering equities, ETFs, fixed income, FX and listed derivatives, connected through ITG NET. source
- xyt Transaction Cost Analysis — Independent analytics-as-a-service TCA and pre-trade modelling built on normalised global market microstructure data; rebranded from big xyt in 2025 after a 10 million euro round led by Finch Capital in 2024. source
What to ask
These come from the same question bank our request-for-proposal process uses, so a guide and an RFP never drift apart. The four sections below carry the most weight in that bank.
Functional fit
Whether the system does the job for YOUR instruments, markets and volumes — not for the demonstration portfolio. The questions separate what runs in production today from what is on the roadmap, because that distinction disappears in a sales meeting and reappears during implementation. It also asks what still has to be typed in by hand, which every system has and few volunteer.
- Which asset classes does the product support in production today?
- Is there a full audit trail of who changed what and when, and can it be exported?
- Does the system enforce segregation of duties between front and back office?
- Is maker-checker approval supported on material actions, and is it configurable by action type?
- Can a valuation be sourced and approved independently of the people who trade?
Security and resilience
Whether the vendor's security is independently attested or merely asserted. The questions ask for certifications you can read, penetration tests you can see the summary of, and recovery objectives that are written down. Incident history is asked directly, because a vendor that has handled a breach well is often a safer choice than one that has never been tested.
- Which independent attestations do you hold currently?
- Will you provide the most recent report under a non-disclosure agreement?
- Is data encrypted in transit and at rest?
- Is single sign-on supported, and is multi-factor authentication enforced?
- Can your own staff see our data, and is that access logged and reviewable by us?
Compliance and regulatory
Whether the system stands up to your regulator and your auditor. Covers the reporting regimes the product supports directly, whether it can evidence who saw or changed a record, how long records are retained, and where in the world your data physically sits — which is a hard constraint for many firms rather than a preference.
- Can the system evidence to an auditor who saw or changed a given record, and when?
- In which jurisdictions is our data stored and processed?
- Are there any pending criminal matters or debarment proceedings involving the firm, its officers or its managers?
- Which regulatory reporting regimes does the product support directly?
- When a regime changes, is the update included in the licence or charged separately?
Clients and references
Whether they have done this for a firm like yours, and whether those firms stayed. Vendors present client counts and logos readily; they present ATTRITION reluctantly, which is why this section asks for clients lost and migrations completed as separate questions from clients won. Size fit decides more failed implementations than feature lists do, so it is asked directly.
- How many client firms use this product in production today?
- How many of those are of a similar type to our firm?
- How many are within our assets-under-management band?
- How many clients did you LOSE in each of the last three years?
- How many implementations begun in the last three years were abandoned before go-live?
You can send all 167 of these questions to the vendors you choose, and get every answer back side by side. Run an RFP — it is free to you and free to them.