About a-team Marketing Services
The knowledge platform for the financial technology industry

A-Team Insight Blogs

Lime Brokerage Rolls LimeDirect Pre-Trade Risk; Minimises Latency, Shuns FPGA Technology

Subscribe to our newsletter

Lime Brokerage has rolled out its LimeDirect pre-trade risk service – providing compliance for SEC rule 15c3-5 while adding minimal latency. But unlike competitive services, the offering – which Lime officials say is based on an “innovative blend of hardware and software” – does not leverage FPGA technology, because Lime technologists believe it is too inflexible in terms of rapid code development and ongoing maintenance.

David Polen, managing director for systematic trading and product management at Lime, declines to provide details about the technology that is being used, but says that the performance is such that LimeDirect adds less than 250 nanoseconds of latency in each direction for a transaction. In this respect, he “firmly believes” LimeDirect to be the lowest latency pre-trade risk offering available.

Observers have speculated that network packet processors, as used by the likes of Artha Financial Technology, Fundamental Interactions and Mantara might be being leveraged by Lime, since they provide FPGA-like performance, but with better programmability.

As well as providing common 15c3-5 checks, such as fat finger, quantity, notional boundary and limit-too-far, LimeDirect also offers support for Reg NMS and Reg SHO, and can track aggregate exposures across multiple markets to maximise use of margin funds. It also generates end-of-day Oats reports.

LimeDirect can be deployed as a standalone service or in conjunction with other Lime offerings, including its LimeInside sponsored access service and its Citrius market data feeds. Customers might typically deploy LimeDirect with their own connectivity for markets where the lowest latency is required, and use LimeInside for other markets, where latency is less of a driver.

Subscribe to our newsletter

Related content

WEBINAR

Upcoming Webinar: The Vanishing Close: Rethinking Trade Surveillance for Always-On Markets

Date: 2 December 2026 Time: 10:00am ET / 3:00pm London / 4:00pm CET Duration: 50 minutes Global markets are moving steadily towards longer and increasingly continuous trading. Extended-hours initiatives in US equities, the growth of overnight venues and the emergence of new markets and instruments are challenging assumptions that have underpinned trading and surveillance systems...

BLOG

Pyth and Exa Explore New Market Data Model for AI Agents

Pyth Network and AI-native search provider Exa are collaborating to explore how AI agents can combine financial market data with web-based research, potentially opening up new approaches to data distribution, licensing and consumption as agentic AI becomes more widely adopted in financial services. The collaboration, currently in an early testing phase, brings together Exa’s search...

EVENT

Alternative Data Conference, Fall NYC

Now in its 8th year, the Eagle Alpha Alternative Data Conference managed by A-Team Group, is the premier content forum and networking event for investment firms and hedge funds.

GUIDE

AI in Capital Markets Handbook 2026

AI adoption in capital markets has moved into a more disciplined phase. The priority is now controlled deployment: where AI can be used safely, where it can deliver measurable value, and how outputs can be governed, monitored and evidenced. The 2026 edition of the AI in Capital Markets Handbook examines how AI is being applied...