文 | 银行螺丝钉 （转载请注明出处） 大部分投资者对股票指数基金都耳熟能详，但是对债券指数基金知之甚少。债券指数基金该如何投资？ 这里有一门限时免费的福利课程，介绍了债券指数基金的投资方法。 想要获取这个课程，可以添加下方「课程小助手」，回复「 债券 」领取哦～ 更有课程笔记、思维导图，帮您快速搞懂课程脉络，学习更高效。 ◆◆◆ 何解决呢? 定投有一个很好的作用，可以在下跌的过 程中降低成本。 如果我们手里已经积累了大量的存量资 产，那么，新投入的资金，相比存量资产 占比很小。 这个时候，主要的涨跌就是由存量资产带 来的，新投入的资金，影响就不大了。 这就是钝化效应。 那么，钝化效应会发生在什么时候呢? 通常来说,如果你单次定投的资金量,是 你现在持有的基金总市值的5%以下,那 就接近出现钝化效应了。 换句话说,如果每个月定投同样的钱,那 么,通常来说,定投超过20个月之后,钝 化效应就开始出现了。 面对「钝化效应」，我们可以通过两个方 法解决。 (1) 「定期不定额」定投 我们可以提高定投的金额,也就是市场越 下跌，买入越多。 这就是「定期不定额」定投方法的原理。 风险提示 本文仅为信息分享，不构成任何投 ...

Core Viewpoint - The article introduces various investment strategies, particularly focusing on different methods of systematic investment plans (SIPs) and their advantages and disadvantages [4][37]. Group 1: Systematic Investment Plans (SIPs) - The most common method is the fixed amount investment, where a set amount is invested regularly, such as 1000 yuan on the first of every month [8][9]. - The advantage of this method is its simplicity and convenience [9]. - However, due to inflation, the purchasing power of the invested amount decreases over time, leading to fewer fund shares being acquired [10][12]. Group 2: Variations of SIPs - The second method is the periodic but variable investment, also known as smart investing, which adjusts the investment amount based on market conditions [16][17]. - One approach under this method is the moving average investment, where the investment amount is reduced when prices are high and increased when prices are low [21][22]. - This method can be effective but may lead to buying at high prices after a bull market [23][26]. Group 3: Valuation-Based Investment - Valuation-based investment is another strategy that focuses on investing more when the asset is undervalued [28][30]. - This method aims to buy more when the price is low, thus enhancing long-term returns and reducing volatility risk [32][33]. - However, it requires a higher understanding of valuation metrics, which may pose a learning curve for investors [34]. Group 4: Value Averaging Investment - Value averaging investment sets a target growth rate for the portfolio, adjusting the investment amount to meet this target [38][40]. - For example, if the target is to increase the portfolio value by 1000 yuan monthly, the investment amount will be adjusted based on market performance [41][44]. - This method is suitable for accumulating wealth towards specific goals, such as saving for a house [48][50]. - A potential drawback is the need for a significant cash outlay during market downturns to meet the target, which may not be feasible for all investors [54][56].