Group 1 - The core viewpoint of the article emphasizes the importance of understanding ETF trading rules and fees to avoid additional costs for investors [1] - ETFs are favored by retail investors due to their low cost and high transparency [1] - The article provides a detailed analysis of ETF trading rules and fee structures [1] Group 2 - ETF trading hours are from 9:30-11:30 and 13:00-15:00 on weekdays, with a pre-market session from 9:15-9:25 [3] - The settlement system for stock ETFs typically follows a T+1 model, while certain types like currency and bond ETFs can utilize T+0 trading [3] - The minimum purchase unit for ETFs is 100 shares, and they can be sold in smaller quantities [3] Group 3 - As of 2025, ETF trading is exempt from stamp duty and transfer fees, with only brokerage commissions applicable [2] - The standard commission rate is typically 0.03%, but can be negotiated down to 0.005% for premium clients [2][6] - Both buying and selling incur commission fees, but selling does not attract stamp duty [2] Group 4 - Strategies to save on ETF fees include consulting with account managers for VIP rates, increasing trading frequency for potential discounts, and selecting brokers with lower overall costs [6] - Investors are advised to avoid ETFs with daily trading volumes below 10 million to ensure liquidity [6] - Monitoring policy incentives, such as those related to emerging sectors, can also provide investment opportunities [6]