截至目前，ETF两市成交额超3000亿元，报3000.99亿元，分类型来看，股票型ETF成交额1063.56亿 元，债券型ETF成交额1197.69亿元，货币型ETF成交额259.96亿元，商品型ETF成交额74.56亿元，QDII 型ETF成交额405.21亿元。其中，成交额最高的非货币型ETF分别是香港证券ETF(513090)、港股创新药 ETF(513120)、沪深300ETF(510300)，成交额分别为93.41亿元、77.71亿元、42.33亿元。 无需港股通，A股账户就能T+0买港股>> ...

Group 1 - The opening performance of ETFs showed mixed results, with the oil ETF (561360) leading gains at 9.96% [1] - The oil and gas resources ETF (563150) increased by 9.44%, while the S&P oil and gas ETF (513350) rose by 5.85% [1] - Conversely, the 500 growth ETF (159620) led the declines at 3.65%, followed by the S&P biotechnology ETF (159502) down 1.67%, and the Nasdaq technology ETF (159509) falling by 1.41% [1]

Group 1 - Investors do not need to open a separate account to trade ETFs; an A-share securities account is sufficient [1] - Some domestic ETF varieties support T+0 trading, such as bond ETFs, gold ETFs, cross-border ETFs, and currency ETFs, while stock ETFs implement T+1 trading [2] - ETF subscription and redemption generally follow the principle of share subscription and share redemption, with the consideration including a basket of securities, cash alternatives, cash differences, and other considerations [3] Group 2 - Investing in stock ETFs offers advantages of both funds and stocks, providing a convenient, flexible, and cost-effective investment channel, allowing investors to invest in a basket of stocks with a single transaction, thus reducing risk compared to individual stocks [4] - There is an arbitrage opportunity in bond ETFs; for example, if a bond ETF's net asset value in the primary market is 100 yuan and its price in the secondary market is 95 yuan, investors can buy in the secondary market and redeem a basket of bonds in the primary market to profit from the price difference [5]