Currencies April 28, 2026 02:02 PM

Algorithmic Trading Spurs Fresh Debate Over Banks Versus Nonbank Firms in FX

Crisil Coalition Greenwich report finds algorithms and technology-first nonbanks drawing buy-side interest in the $9.5 trillion-a-day currency market

By Derek Hwang
Algorithmic Trading Spurs Fresh Debate Over Banks Versus Nonbank Firms in FX

A recent Crisil Coalition Greenwich report highlights rising use of algorithmic execution in foreign-exchange trading and the growing role of nonbank liquidity providers. About a quarter of buy-side desks now use or plan to use nonbanks for FX trades, drawn by pricing, technology, and execution quality, while long-standing bank relationships continue to limit broader adoption.

Key Points

  • About a quarter of buy-side FX desks use or plan to use nonbank firms for executions, often via algorithms - impacts buy-side trading and FX technology providers.
  • Algorithms are increasingly relied upon for executing large or complex currency orders with minimal market impact, influencing market makers and liquidity providers.
  • Established bank-client relationships remain important, particularly during unsettled markets and for structured currency transactions - affecting banks and institutional clients.

Algorithm-driven trading is reshaping the discussion around who should execute foreign-exchange transactions in the $9.5 trillion-a-day market, according to a report from Crisil Coalition Greenwich published Tuesday.

The consultancy found that roughly a quarter of buy-side currency desks either already use nonbank firms for foreign-exchange executions or intend to do so. Much of this activity is routed through algorithmic systems, the report said, with the nonbanks' pricing frameworks, technical capabilities and perceived execution quality cited as key attractions.

"Algorithms are dominating FX execution," Audrey Costabile, a senior analyst at Crisil Coalition Greenwich, wrote. "For firms looking to execute large or complex orders with minimal market impact, sophisticated tools can be a significant draw."

The report notes that high-frequency trading firms and dedicated market makers - including nonbank liquidity providers such as XTX, Citadel Securities and Optiver - have expanded their presence in recent years. That expansion has been particularly noticeable among clients who are sensitive to price.

At the same time, Crisil cautioned that entrenched banking relationships remain an impediment to faster migration toward nonbank execution. Buy-side currency teams still place substantial value on established ties with banks, especially when markets are volatile or when transactions involve more structured currency products.

These dynamics frame an active debate in the foreign-exchange community about the respective roles of traditional banks and independent firms as algorithmic trading becomes more prevalent. The report presents evidence of shifting preferences while also documenting the limits to that shift.


Context and implications

  • Buy-side adoption of nonbank execution is measurable but not yet dominant, with roughly one-quarter of desks engaged or planning to engage nonbanks.
  • Algorithmic tools are a primary factor drawing clients who need low market impact for larger or more complex orders.
  • Long-standing banking relationships continue to matter, particularly under market stress or for structured deals.

Risks

  • Long-standing relationships with banks may constrain the pace at which buy-side desks shift to nonbank execution - risk to nonbank market-share growth, affecting FX liquidity providers.
  • Buy-side preference for banks during unsettled market conditions or for structured deals could limit nonbank adoption and maintain fragmentation in execution channels - risk to uniform adoption of algorithmic models.

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