Electronic FX Trading 2025: Where Electronic Trading Hits Its Limits — and Where It's Only Just Beginning
The FX market hit a record turnover in 2025 — yet electronification has plateaued at 59%. Where spot is saturated, where swaps and options are only beginning, and why over 80% of client flow disappears invisibly into dealer pools.
In April 2025 the global FX market reached a record turnover of USD 9.51 trillion per day (+27% versus April 2022). But electronification is no longer linear: in standard business — above all in spot — saturation has been reached. The aggregate e-ratio has stood essentially unchanged at 59% across three BIS Triennial Surveys. In FX swaps and FX options, by contrast, electronic trading still lags well behind. This is exactly where the growth fields of the coming years lie — accelerated by new inter-dealer CLOBs and streaming platforms.
In parallel, more and more market activity is disappearing from view: client flows are increasingly matched internally within dealer pools. Individual liquidity providers internalise very large shares of their flow and pass only small residual volumes to the external markets. This works only for the very largest in the industry, however — scale, franchise breadth and technological depth are the prerequisites to use internalisation as a value lever at all. On the counterparty side, Other Financial Institutions — hedge funds, PTFs, institutional investors — have for the first time overtaken the traditional reporting dealers, at around 49% of volume.
This briefing breaks down the shifts on the basis of the final BIS Triennial Survey 2025 (BIS Quarterly Review, 8 December 2025) — venue landscape, internalisation, e-ratio by instrument, algo adoption and listed FX. A pure facts briefing, no recommendations.
Electronification has plateaued
The central observation of the 2025 survey: the electronic share of FX trading has stood essentially unchanged at around 59% across three Triennial Surveys, with the voice share at around 41%. This contradicts the widespread expectation of continuous electronification.
Voice trading remains vital for two structural reasons: first, for large spot tickets, where sales traders and voice execution minimise market impact relative to electronic lit venues; second, for bespoke derivatives (exotic options, currency swaps with non-standard terms, broken-date forwards) that resist standardisation.
Within the electronic segment there was also a slight shift back from “direct electronic” (single-dealer platforms) towards “indirect” (multi-dealer platforms, brokered) — a reversal of the 2019–2022 trend.
E-ratio by instrument — the 59% conceals wide differences
The aggregate figure of 59% hides considerable heterogeneity across instruments. Spot and NDFs are the most electronified segments; forwards are catching up, while FX swaps and options sit well below.
| Instrument | E-ratio 2025 | E-ratio 2022 | Main channels |
|---|---|---|---|
| FX Spot | high (≈75%) | high (≈75%) | MDP, SDP, ECN, CLOB |
| NDFs | high (≈70%) | high (≈65%) | MDP (RFQ), ECN, algo routing |
| Outright Forwards | medium (≈55%) | lower (≈45%) | MDP RFQ, inter-dealer increasingly CLOB |
| FX Swaps | low (≈55%) | very low (≈40%) | voice-dominant; D2C RFQ growing |
| FX Options | low–medium | low | MDP (vanilla), voice (exotic) |
Values approximated from BIS chart B2.B and supplemented with industry indicators (Coalition Greenwich); NDFs are not reported separately by the BIS.
The current shift is happening in forwards: since 2023 inter-dealer electronic brokers have increasingly onboarded forwards for anonymous trading via CLOB. According to the London FX Committee, the share of forwards traded through electronic brokers in London doubled between 2022 and 2025, from 14% to 28%. FX swaps remain the instrument with the lowest e-ratio — driven by counterparty credit risk over the tenor, more complex pricing components (spot + forward points) and the concentration in short tenors (around 68% of trades ≤ 7 days).
The instrument mix is shifting
Instrument market shares shifted markedly from April 2022 to April 2025 — and with them the fields in which electronic venues can grow.
| Instrument | April 2022 (USD bn/day) | April 2025 (USD bn/day) | Share 2025 | Growth |
|---|---|---|---|---|
| FX Spot | 2,085 | 2,952 | 31% | +42% |
| Outright Forwards | 1,157 | 1,747 | 18% | +51% |
| FX Swaps | 3,798 | 4,015 | 42% | +6% |
| Currency Swaps | 124 | 164 | 2% | +33% |
| FX Options | 303 | 632 | 7% | +108% |
| Total | 7,468 | 9,510 | 100% | +27% |
Net-net basis. Source: BIS Triennial Survey 2025, final data, Annex Table A.2.
Spot and forwards growth means direct volume growth for ECNs/CLOBs and emerging forwards platforms. The BIS attributes the stagnation in FX swaps (+6% versus +27% for the market) to reduced liquidity-management needs and strongly grown intragroup trading within banking groups. The doubling of options (+108%) creates headroom for options platforms, whose e-ratio still sits well below the market average.
Internalisation — the invisible market
Internalisation is probably the most important and at the same time least visible mechanism in the modern FX market. When a client trades with a large bank dealer, the dealer first takes the risk onto its own book (“warehousing”) and matches it against opposing flow from other clients, rather than hedging it externally straight away.
The BIS quantifies it: dealers match more than 80% of client trades within their own internal liquidity pools. In Asian financial centres the ratios were in part even higher; G10 currencies above average. For SDP providers, internalisation is the core value lever: the larger the franchise flow, the better one can internalise and the more competitive spreads become. This works only for the very largest in the industry.
A second layer of internalisation takes place between affiliates within the same banking group: intragroup trades rose 128% in spot, 85% in forwards and 42% in FX swaps, while external inter-dealer trading in FX swaps fell 4%. The BIS explicitly speaks of the “growing role of internal capital markets within banking groups”.
The counterparty structure is tipping
The distribution of counterparties has shifted fundamentally: in 2025 Other Financial Institutions are for the first time the largest block — ahead of the traditional reporting dealers.
| Counterparty | Volume (USD bn/day) | Share 2025 | Growth vs. 2022 |
|---|---|---|---|
| Reporting Dealers (inter-dealer) | 4,443 | 46% | +27% |
| Other Financial Institutions | 4,627 | 49% | +30% |
| – Non-Reporting Banks | 2,195 | 23% | +38% |
| – Institutional Investors | 1,261 | 13% | +49% |
| – Hedge Funds & PTFs | 760 | 8% | +48% |
| – Official Sector | 138 | 1% | +42% |
| Non-Financial Customers | 441 | 5% | +3% |
Source: BIS Triennial Survey 2025, final data, Annex Table A.2.
Hedge funds and PTFs (+48%) grow above all in spot and NDFs — segments with a high e-ratio. Non-reporting banks (+38%), mostly regional and mid-sized institutions, trade as tier-2 clients via multi-dealer platforms. Corporate FX grows in absolute terms (+3%) but loses relative share (from 5.7% to 4.6%) — and so far uses TCA at only around 20%.
Venue landscape and algo adoption
The electronic FX market is multi-layered and fragmented: over 15 multi-dealer platforms, a dozen non-bank liquidity providers (PTFs), several anonymous CLOBs and a growing aggregator/EMS layer. Within the electronic segment, indirect and anonymous venues regained market share in 2025. PTFs such as XTX Markets or Citadel Securities are established market makers in spot; CME positions its FX Spot+ (launched May 2025) as an all-to-all market bridging to the futures world.
Algorithmic trading remains established in spot and is expanding into adjacent instruments — most strongly among hedge funds (≈40%) and asset managers (≈30%), while corporate treasuries still sit below 20%. NDFs are seen as the next growth field for execution algorithms.
Listed FX as a complement
From an industry perspective (CME in particular), listed FX is gaining relative importance — on this reading not at the expense of the OTC market, but as a complement: OTC remains dominant in FX swaps, funding and bespoke structures, while FX futures gain importance for directional exposure, fast risk adjustment and price discovery. This should be read as the view of a listed provider, not as a neutral primary-source statement.
The full analysis with all tables, the venue overview and the complete source apparatus is available in the 11-page briefing as a PDF (in German). The underlying sources (BIS Quarterly Review 12/2025, BIS Triennial Survey, Coalition Greenwich, CME, FX Markets) are documented there in full.