坚持简单的多元化组合，保持较低的管理费用，定期对组合中的资产配比进行调整，以保持你的资产分配符合你的长期目标。

Stick to a simple diversified portfolio, keep your costs down and rebalance periodically to keep your asset allocations in line with your long-term goals.

youdao

Portfolio management pools risks in a different way: by assembling a diversified portfolio or a portfolio that's negatively correlated with a risk that someone has.

而投资组合管理采用了不同的方式,多元化的资产配置,或者风险负相关性的,投资组合

耶鲁公开课 - 金融市场课程节选