01 · In plain English
What happened.
The Financial Conduct Authority fined Sigma Broking Limited (FRN 485362) £1,087,300 for breaches of MiFIR and Principle 3 (the requirement to act with due skill, care and diligence). Sigma agreed to resolve the matter through the FCA’s executive settlement procedures and qualified for a 30% discount; without that discount the fine would have been £1,553,300. The action appears on the FCA register dated 2025-07-29 and is recorded in the FCA’s final notice linked below.
Summarised from the FCA's notice and press reports. The FCA's own text and documents below are the authoritative record.
02 · Enforcement details
What the FCA register says.
The FCA issued a Final Notice by which it imposed a fine of £1,087,300 against Sigma Broking Limited for breaches of MiFIR and Principle 3 of the Authority's Principles for Businesses. Sigma agreed to resolve this matter and qualified for a 30% discount under the Authority’s executive settlement procedures. Were it not for this discount, the Authority would have imposed a financial penalty of £1,553,300 on Sigma.
03 · Firm details
Firm on the FCA register.
- Firm name
- Sigma Broking Limited
- Firm reference number
- 485362
- Register status
- Authorised
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