After thoroughly reviewing The Capital Group’s profile, I have to state clearly that, in my own experience as a trader, I am unable to give a precise breakdown of trading costs for index products like the US100 because, according to the information available, The Capital Group does not offer indices, including the US100, as tradeable instruments. Their primary focus appears to be on stocks and futures, both regulated under Taiwan's Taipei Exchange framework, but there are no index products, commodities, or forex pairs available for trading. Additionally, critical cost-related details such as spread size, commission structure, or swap fees are not openly disclosed for any sort of index offering, which further emphasizes the lack of available products in this category. I found no evidence of demo account support, nor the presence of popular trading platforms like MT4 or MT5—both would typically provide greater transparency around live trading costs. Given the limited product range and the absence of index trading, I advise approaching with caution if you’re specifically interested in trading instruments like the US100. In my judgment, for those looking for comprehensive information and transparent cost structures on index trading, The Capital Group would not be a suitable broker. My advice is always to request verifiable details directly from the broker and avoid making assumptions about available products or fees where transparency is lacking.