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是时候改进传统的均衡投资组合了

发表时间:2021年3月8日


Investor Knowledge +  10 Minutes = New Thinking

Advancing and evolving is a constant for humanity. Whether it is technology, health or even social norms, things change - usually for the better. For example, in 1952 just two-thirds of families in the U.S. had a telephone and only one-third had a TV¹. Today, a small digital device in someone's pocket can communicate or stream content to and from anywhere in the world.

When it comes to investing, the industry is constantly evolving as well. Whether it be through new investment solutions, platforms to invest or even ways advice is received, there is a constant evolution. There is however one part of investing that seems to have been at a standstill - "modern" portfolio theory.

Modern Portfolio Theory's "60/40 portfolio" was also developed in 1952², however it has yet to materially evolve. If most other aspects of the investment industry are always evolving to serve investors better, why shouldn't investment portfolios?

The case for evolving the 60/40 portfolio

With this theme in mind, the Asset Allocation Team has created a 5-part series of papers that addresses the evolution in our approach to asset allocation. In the first paper, we discuss how the 60/40 portfolio has served investors well in the past, why evolution is needed now more than ever and the approach to asset allocation at TD Asset Management Inc. (TDAM).

Some of the key themes for why the 60/40 portfolio needs to evolve discussed in the first paper include: 

  • Return expectations have changed - Bond yields have been steadily falling over the years and have dropped to all-time lows. Lower fixed income return expectations combined with strong equity return expectations fundamentally alters what one can expect from a 60/40 portfolio.
  • Diversification dynamics have changed - A negative correlation between bonds and equities is a basic requirement for diversification, however, we believe the primary risk to the traditional 60/40 approach afforded by diversification is that the negative correlation may weaken going forward. 
  • The search for yield has altered the risk relationship - Because of low interest rates, investors have searched for yield in riskier areas of the market, such as high-yield or emerging market bonds. While these assets can play a role in a portfolio, compared to less risky bonds they are much more positively correlated with equities which reduces diversification benefits and offers less protection from volatility.

The future of the 60/40 portfolio

Investors continue to have the same needs as they did in 1952; to achieve the necessary returns to help meet their goals, with the smoothest journey possible. However, the modern world has changed and so has the return outlook for major asset classes and the relationship between them. Just as technology has evolved, new innovative techniques and asset classes have enabled an evolution in portfolio construction. Innovative solutions can better align with client goals and provide higher returns, with improved risk mitigation.

Be sure to look for our upcoming articles that include the new ways in which TDAM views and explores a more modern portfolio.

¹Pearson, Stephen. "The Year 1952." The People History. Web. 20 Dec. 2016.

²The Journal of Finance, Vol. 7, No. 1. (March, 1952) Portfolio Selection, Harry Markowitz

本文所含信息由道明资产管理有限公司提供,仅供参考。信息出自我们认为可靠的来源。本信息并未提供财务、法律、税务或投资建议。具体的投资、税款或交易策略应根据每位投资者的目标和风险承受能力加以评估。

本文档中的部分陈述可能包含预测性的前瞻性陈述(“FLS”),其中包含“预计”、“预期”、“打算”、“认为”、“估计”和类似的前瞻性表述或其否定形式。前瞻性陈述基于当前对未来普遍的经济、政治、相关市场因素(例如利率和汇率、股票和资本市场)以及普遍经营环境的预计和预测,并假定不发生税法或其他法律或政府管制方面的任何变动或灾难事件。对于未来事件的预计和预测本身受无法预见的风险和不确定性的影响。此等预计和预测可能在未来并不准确。前瞻性陈述并非对未来表现的保证。实际发生的事件可能与前瞻性陈述明示或暗示的事件存在实质差异。包括上文所述各项因素在内的多个重要因素均可能造成这种背离。您不应在任何程度上依赖于前瞻性陈述。

TD财富资产配置委员会(WAAC)由多元化的TD投资专业人士组成。WAAC的责任是发布季度市场展望,提供有关未来6至18个月市场行情的简明观点。WAAC的预测并非对未来结果的保证,实际市场事件可能与WAAC季度市场展望中明示或暗示的情况存在实质性差异。WAAC市场展望不可取代投资建议。

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