The most significant benefit of trading with Jefferies is its regulation by the FCA and CIRO. This provides clients with a sense of security, knowing that the broker adheres to industry standards and operates within a transparent framework. Additionally, Jefferies offers a wide array of financial services, including investment banking, global research, and wealth management, alongside equities and fixed income products. For Jefferies broker, this broad service offering can be advantageous for clients seeking diverse financial solutions. However, the lack of clear platform information might be an issue for traders who require a specialized trading environment.