为什么在市场中的时间胜过择时交易:背后的数学
数据明确无误:持续投资比试图择时买卖能带来更好的收益。学习证明这一点的数学原理。
The phrase time in the market beats timing the market is one of the most repeated investing maxims. Unlike many financial cliches, this one is supported by overwhelming empirical evidence. The data shows that 投资者 who stay consistently invested earn dramatically better returns than those who attempt to move in and out of the market.
这一原则背后的数学原理简单却强大。市场回报集中在少数几天内。错过哪怕几个最佳交易日(这些交易日无法提前预测),都会对长期业绩造成毁灭性打击。持续投资才能确保你抓住所有这些机会。
这一原��已在所有主要市场、所有研究时期以及几乎所有资产类别中得到验证。结论始终如一:长期持续投资市场比试图预测市场涨跌更能带来收益。
讲述故事的数字
对标普500指数的研究表明,在20年的时间里,仅仅错过表现最佳的10个交易日,就可能使总收益减少一半以上;错过表现最佳的20个交易日,收益则可能减少75%以上。这些最佳交易日随机出现,且往往集中在表现最差的交易日附近,因此无法通过择时来捕捉。
A study of every 20-year rolling period in market history shows positive returns in virtually every case for 投资者 who stayed fully invested. For 投资者 who moved to cash during downturns and returned only when conditions improved, the results were consistently worse.
数学规律残酷无情:即使择时完美,在每次下跌前卖出,在每次触底时买入,其收益也仅仅比继续持有略好一些。而完美的择时在实践中是不可能实现的。更现实的比较是继续持有和做出不完美的择时决策之间的权衡,而后者显然更胜一筹。
确保你保持投资
真正的挑战不在于理解“长期持有”策略的有效性,而在于建立一套系统,让你在每一个本能都驱使你卖出的时候,依然坚持持有。在市场下跌时,即使你理智上明白继续持有才能获得更好的结果,想要通过持有现金来保护本金的冲动也可能难以抑制。
Automated 投资组合管理 solves this challenge by maintaining your 配置 through all market conditions. The system stays invested because it has no emotions. You benefit because you capture the returns that come from consistent, disciplined time in the market.
Index500 keeps your 投资组合 fully invested and systematically allocated across five 经济主题, ensuring you capture the returns that come from consistent time in the market.