Sigma Primary claims to be a regulated firm while presenting neither details about its regulations nor legal documents (terms & conditions, risk disclosure, and privacy policy, etc.). Lacking the above information may be a distinct characteristic of unlicensed brokers, as legit brokers always present their accreditation and licenses in a prominent position. It is a red flag here.

Besides, Sigma Primary shows its company address is in the United Kingdom. As per the United Kingdom law, all firms and individuals offering, promoting, or selling financial services or products in the UK have to be authorized or registered by the UK financial regulator - FCA. However, we did not find any match results to Sigma Primary in FCA. That means Sigma Primary is not overseen by any regulators. Investors' funds in this broker are unsafe and cannot be protected by any law. Therefore, it is a scam.

The Financial Conduct Authority (FCA) issued a warning against Sigma Primary on April 3, 2023, believing this broker might be providing financial services or products in the UK without authorization: https://www.fca.org.uk/news/warnings/sigma-primary

The website of Sigma Primary has been found unavailable, which is a red flag, as a website of a broker is necessary for displaying regulatory status and facilitating trading. The absence of a website can be interpreted as a negative indication that there are potential issues with the broker's reliability and resources.