【中文版】

EFT基金，全称为交易所交易基金(Exchange Traded Fund)，是一种在交易所上市的开放式基金，可以像股票一样进行买卖。这种基金采用指数化投资策略，跟踪某一特定市场指数，如沪深300指数、纳斯达克100指数等。与传统的指数基金相比，EFT基金具有更高的透明度和更低的费用。

EFT基金的特点主要有以下几点：首先，它具有高透明度。由于在交易所上市，投资者可以随时查看基金的净值和份额，了解基金的投资组合和持仓情况。其次，EFT基金的费用较低。由于采用指数化投资策略，管理费用和交易成本相对较低。最后，EFT基金具有高流动性。投资者可以在交易时间内随时买卖基金，无需等待交易确认。

EFT基金的投资策略是跟踪某一特定市场指数。投资者购买EFT基金相当于购买了该基金所跟踪的市场指数的一部分。因此，EFT基金的风险与该市场指数的风险基本一致。

总之，EFT基金是一种方便、透明、低成本的开放式基金，适合于希望通过投资市场指数来获取收益的投资者。然而，投资者在购买EFT基金时也应注意风险，了解基金的投资策略和市场指数的波动情况。

【英文版】

What is EFT Fund? EFT Fund, short for Exchange Traded Fund, is a publicly listed open-end fund that can be bought and sold like a stock. This kind of fund adopts indexing investment strategy, tracking a specific market index such as the CSI 300 Index or the NASDAQ 100 Index. Compared with traditional index funds, EFT Fund has higher transparency and lower fees.

The characteristics of EFT Fund mainly include the following: firstly, it has high transparency. Since it is listed on the exchange, investors can view the fund's net value and shares at any time, understand the fund's investment portfolio and position. Secondly, the EFT Fund has lower fees. Due to the indexing investment strategy, management fees and transaction costs are relatively low. Finally, the EFT Fund has high liquidity. Investors can buy or sell the fund at any time during the trading hours without waiting for transaction confirmation.

The investment strategy of the EFT Fund is to track a specific market index. Investors who buy EFT Fund are equivalent to buying a part of the market index tracked by the fund. Therefore, the risk of the EFT Fund is basically consistent with the risk of the market index.

In summary, the EFT Fund is a convenient, transparent, and low-cost open-end fund suitable for investors who want to obtain returns by investing in market indices. However, investors should also pay attention to risks when purchasing EFT Funds and understand the fund's investment strategy and market index fluctuations.