A trading firm spun out of Jane Street pays £673k in London and is hiring

Five Rings is one of the most secretive electronic trading firms today. They're best known as a spinout of Jane Street, led by Ferrari driver Jason McCarthy. Beyond that, even top trading CEOs like Alex Gerko couldn't tell you what they do. What we can say is that it pays handsomely, if its UK entity is anything to go off. 

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'Five Rings Capital LLP' filed accounts for 2025 this week, showing that it had increased average headcount from 21 to 26. In total, it paid £17.5m ($23.6m) in 'salaries and wages', which worked out at roughly £673k ($908k) per head. This was, however, down from 2024 when it paid £806.2k per head. Some of the new arrivals in 2025 (according to LinkedIn) work in compliance, or as trading assistants, which may have brought down the average. Five Rings paid over £800k per head for three consecutive years before 2025.

The accounts suggest that Five Rings Capital didn't have the best year, as the entity had an operating loss of over £16m in 2025. Income from 'proprietary trades' nearly halved from £11m in 2024 to £6m in 2025. The entity describes its principal activities as both prop trading and "related services on behalf of the company's group," and also received £1.4m in service fees in 2025. Five Rings did not respond to a request for comment. It's possible that other entities were more profitable and that we do not have the full picture. 

Despite this, Five Rings moved into a new office with space for ~60 people back in November, suggesting it has big plans for expansion. It's currently hiring graduate traders and software engineers as well as an experienced trading assistant.

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