In my personal experience analyzing Simplex Asset Management, I found that available information about their fee structure, including whether they charge a commission per lot traded on ECN or raw spread accounts, is notably absent. As someone who relies heavily on understanding all potential transaction costs before deciding on a broker, this omission is a significant concern for me. I have always considered transparent fee disclosure—especially regarding commissions on forex trades—essential for prudent risk management and trust. I noted that Simplex Asset Management is regulated by Japan’s Financial Services Agency and has operated for 15–20 years, which does provide a measure of credibility and regulatory oversight. However, regulatory standing does not replace the need for clear details on trading costs. The fact that neither their website nor third-party summaries present commission details leaves me cautious. In my trading decisions, such gaps in publicly available information often prompt me to reach out directly to a broker for clarification or, if the uncertainty persists, to consider alternative providers. In summary, though Simplex Asset Management appears reputable and established, I have not found explicit evidence they charge commissions per lot traded, and would recommend confirming all relevant fee information with them directly before making any commitments.