Based on my experience as a trader, it is absolutely essential to thoroughly understand a broker’s cost structure before committing any funds, especially with something as commonly traded as the US100 index. With Maven, however, I found it notably difficult to pin down reliable details about their trading costs for indices like the US100. The broker's available information struck me as lacking in transparency, which is a significant red flag when evaluating trading expenses such as spreads, commissions, and overnight fees. What’s more concerning is Maven’s current regulatory standing. According to the information I found, their FCA license has been exceeded, meaning they no longer operate under active, recognized supervision. This places them in a high-risk category for traders like myself, and brings even more doubt regarding the clarity and fairness of their cost structures. In my view, when a broker cannot offer straightforward, up-to-date information about trading costs for major indices and lacks valid regulation, the risks of hidden fees or unfair pricing increase substantially. Given these issues, I cannot accurately break down the total costs for trading indices like the US100 with Maven, and I would advise extreme caution. Informed decision-making starts with transparency and firm regulatory protections—elements currently missing with this broker. For me, until these fundamentals are addressed, I would not proceed with live trading of indices through Maven.