Based on my experience as a forex trader, evaluating trading costs with a broker like Core Financial Markets Ltd requires extra caution. From the information available, I found several points worth careful consideration before trading instruments like indices such as the US100. Firstly, Core Financial Markets Ltd currently has no valid regulatory information and is marked by watchdog sources as carrying a high potential risk, with a particularly low broker score and warnings about suspicious regulatory licenses and business scope. This immediately impacts my trust in the transparency of any cost structure they might present. Due to the lack of oversight, published detail on their spread, commission, overnight swap rates, and non-trading fees is either minimal or absent. In my experience, with brokers in such situations, there’s a risk that trading costs can be unpredictable or not disclosed upfront. This is a significant issue because for trades on indices like the US100, the primary direct trading costs would typically include the spread (difference between bid and ask price), possible commissions per lot, and overnight financing (swap) if trades are held beyond a day. Without clear, verifiable figures on these from Core Financial Markets Ltd, it’s hard for me to confidently calculate or even estimate real costs, and this uncertainty adds a hidden risk premium. Given these uncertainties and the apparent lack of regulatory scrutiny, I personally would not be comfortable relying on this broker for indices trading, as unforeseen or non-standard costs could arise. I would strongly recommend considering only fully regulated, transparent brokers with clear cost breakdowns to manage risk and cost predictability—especially when trading volatile index products like the US100.