重庆交易ETF场内基金的佣金多少？最低多少？

Group 1 - The article discusses the commission structure for trading ETFs in Chongqing, highlighting that the default commission is typically 0.03%, but some brokers can offer as low as 0.005%, which is currently the market's lowest standard [1] - ETFs are a special type of open-end fund that combines the advantages of closed-end and open-end funds, allowing investors to trade ETF shares on the secondary market or redeem them with the fund management company [1] - The presence of both secondary market trading and the subscription/redemption mechanism allows investors to engage in arbitrage trading when there is a price difference between the ETF's market price and its net asset value [1] Group 2 - Certain types of ETFs, including cross-border ETFs, bond ETFs, gold ETFs, and currency ETFs, allow for T+0 trading, while domestic A-share ETFs do not support this, requiring T+1 for selling after purchase [2] - For individual investors, ETFs can be treated as a "big stock," simplifying the investment process by eliminating the need to select individual stocks and reducing the risk of encountering "black swan" events or "value trap" stocks [2] - The article provides a detailed breakdown of various commission rates for different trading activities, including a 0.005% commission for bond ETFs and a 0.008% commission for Hong Kong Stock Connect [2]