资产配置思考

2024 (explicit) · memo · 原文约 3474 词
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Memo to:

Memo to:

Oaktree Clients

Oaktree Clients

From:

From:

Howard Marks

Howard Marks

Re:

Re:

思考资本配置

Ruminating on Asset Allocation

出差拜访客户、整天讨论投资与市场时,备忘录的灵感常常会不期而至。上个月去澳大利亚拜访客户就是如此。我们聊到了我认为正在利率领域发生的“巨变”,以及信用在投资组合中的作用,有几次还顺势谈到了资产配置这个宽泛话题。结果并非在这个主题上冒出多少新想法,而是找到了一种把旧观点整合成一套统一理论的新方式。

在继续往下写之前,我想先说明一点:这篇备忘录里,我会时不时用到“一般来说”“通常”或“在其他条件相同的情况下”这类措辞。这些保留条件可能适用于文中的更多句子和观点,但为了读起来顺畅,我不会不厌其烦地反复强调。此外,我会大量使用图表,因为我确实相信一图胜千言。请记住,这些图示意在示意,并非严格精确。

资产类别

从我的角度看,“资产配置”是个相对较新的事物。55 年前我入行时,没人用这个词。构建投资组合本来很简单,通常遵循经典的“60/40”分法。多数美国投资者只投资美股和债券,而且有种由来已久的观念:大约 60% 股票加 40% 债券就算合理分散。

如今,投资者面对的选择多如牛毛——而且选对与否被强调得极为重要——以至于“资产配置”这个词变得相当醒目,还出现了专门做这件事的个人和整个部门。他们的工作就是决定投资组合中各类资产的权重,也就是说,资产配置者把时间花在这些决策上:

When I travel to see clients and spend entire days discussing investing and the markets, memo ideas often pop up. Last month’s visit with clients in Australia is a case in point. We talked about the “sea change” I believe is taking place in interest rates and about the role of credit in portfolios, and in a few cases, this led to the general topic of asset allocation. The result wasn’t a lot of new ideas on the subject, but rather a new way to combine old ideas into a unified theory. Before I proceed, I want to mention that, from time to time in this memo, I’ll say “generally,” “usually,” or “everything else being equal.” These caveats are likely applicable to many more sentences and ideas herein, but for the sake of readability, I’m not going to repeat them ad nauseum. In addition, I’m going to use a lot of graphics, as I truly believe one picture is worth a thousand words. Please bear in mind that these representations are intended to be notional, not technically correct. Asset Classes From my vantage point, “asset allocation” is a relatively new thing. No one used that phrase when I joined the industry 55 years ago. Structuring portfolios was a pretty simple matter, generally following the classic “60/40” split. Most U.S. investors limited themselves to investing in U.S. stocks and bonds, and there was a time-honored notion that something like 60% equities and 40% bonds represented reasonable diversification. Today, investors are presented with so many choices – and there’s so much emphasis on getting the decision right – that the term “asset allocation” is very prominent, and there are individuals and whole departments dedicated to doing just that. It’s their job to decide how to weight the asset classes to be held in a portfolio, meaning asset allocators spend their time on decisions like these: • • • • • • • • • •

股票配多少?债券配多少?

股票和债券各有多少,另类投资又占多少?

公开市场证券配多少,私人资产配多少?

国内市场和海外市场各配多少?

海外部分里,发达市场与新兴市场如何分配?

优质资产与低质资产各占多少?

波动较大的“高贝塔”资产与走势稳健的资产怎么配?

杠杆策略与非杠杆策略各有多少?

“实物资产”占多大比例?

衍生品又占几何?

How much in equities and how much in debt? How much in stocks and bonds and how much in “alternatives”? How much in public securities and how much in private assets? How much in one’s home country and how much abroad? How much of the latter in the developed world and how much in emerging markets? How much in high quality assets and how much in low quality? How much in more volatile “high beta” assets and how much in steadier ones? How much in levered strategies and how much unlevered? How much in “real assets”? How much in derivatives?

光是想想就让人头晕。许多投资者借助计算机模型来做这些决策,但模型需要输入预期回报、风险和相关性等参数,而其中大部分基于历史数据,因此对未来是否适用存疑。资产类别之间的相关性尤其难以预测。这常常是“垃圾进,垃圾出”的情况(只不过有了数学模型的加持,让人心里似乎更踏实些)。

It’s enough to make your head spin. Many investors use computer models to help with these decisions, but the models require inputs regarding expected return, risk, and correlation, and most of these are based on history and thus of questionable relevance to the future. Correlation between asset classes is particularly difficult to predict. It’s often a case of garbage in, garbage out (but with the added comfort that comes from using mathematical models).

2024 年橡树资本管理有限合伙公司

2024 Oaktree Capital Management, L.P.

版权所有,保留所有权利。

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自从两年前提出关于利率的海变论点以来,我一直在谈论信贷投资日益增长的实用性。而我越是这样讲,就越深入思考信贷投资与股票投资之间的差异。因此,关于我的“澳大利亚顿悟”,我想首先提及的一个非常规观点是:从根本上说,只有两类资产——所有权和债务。如果某人想以财务方式参与一家企业,核心选择无非是(a)拥有其一部分,或(b)向其放贷。

1978 年,我从花旗银行的股票研究部门调至债券部门时,亲身感受到这简直是天壤之别。我的新办公桌上放着一台名为 Monroe 360/65 债券交易员的机器。只要输入债券的利率、到期日和市场价格,它就能告诉你到期收益率……换句话说,如果你以该价格买入并持有至到期(且债券支付),你的回报率是多少。这对我来说是革命性的。在我之前所在的股票领域,你无处可查自己的回报率会是多少。

这让我更加清晰地认识到一个我始终觉得大多数投资者未能从骨子里理解的事实:股票与债券之间的本质区别……也就是所有权与放贷之间的区别。投资者似乎认为股票和债券同属一个类别,但二者的差异极其巨大。事实上,所有权和放贷毫无共同之处:

Ever since coming up with my sea change thesis regarding interest rates two years ago, I’ve been talking about the increased utility of credit investments. And the more I’ve done so, the more I’ve thought about the difference between credit investments and equities. Thus, the first thing I want to mention about my “Australian epiphany” is the unconventional idea that, at bottom, there are only two asset classes: ownership and debt. If someone wants to participate financially in a business, the essential choice is between (a) owning part of it and (b) making a loan to it. When I moved from Citibank’s equity research department to its bond department in 1978, I learned firsthand that this is a matter of night and day. On my new desk, I found a machine called a Monroe 360/65 Bond Trader. If you typed in a bond’s interest rate, maturity date, and market price, it would tell you the yield to maturity . . . in other words, what your return would be if you bought the bond at that price and held it to maturity (and it paid). This was revolutionary to me. On the equity side I’d come from, there was no place you could look to find out what your return would be. This highlighted for me something I’ve always felt most investors don’t grasp viscerally: the essential difference between stocks and bonds . . . that is, between ownership and lending. Investors seem to think of stocks and bonds as two things that fall under the same heading. But the difference is enormous. In fact, ownership and lending have nothing in common: •

股东把钱押在风险之中,没有任何回报的承诺。他们买下某项生意或其他资产的一小块,就有权按比例分得在向员工、原材料供应商、房东、税务机关,当然还有放贷人支付完必要款项之后剩余的一切。如果还有剩余,那部分就叫利润或现金流,股东有权分取其中被派发的任何部分。而如果存在利润或现金流(或未来有这种可能),这门生意就有了“企业价值”,股东同样在其中占有一份。

放贷人通常提供资金,帮助股东购买或经营生意或其他资产,作为交换,他们得到承诺:定期收取利息,到期收回本金。借款人和放贷人之间的关系是契约性的,由此产生的回报如上所述事先已知,前提依然是借款人按时履行承诺的付款。正因如此,这类投资才叫“固定收益”——收益是固定的。不过,就本备忘录而言,把它想成“固定结果”投资或许更有帮助。

Owners put their money at risk with no promise of a return. They acquire a piece of a business or other asset and are entitled to their proportional share of any residual that remains after the necessary payments have been made to employees, providers of raw materials, landlords, tax authorities, and, of course, lenders. If there’s something left over, it’s called profit or cash flow, and the owners have the right to share in whatever part of it is paid out. And if there’s profit or cash flow (or the potential for it in the future), the business will have “enterprise value,” in which the owners also share. Lenders typically provide funds to help owners purchase or operate businesses or other assets and, in exchange, are promised periodic interest and the repayment of principal at the end. The relationship between borrower and lender is contractual, and the resulting return is known in advance as described above, again assuming the borrower makes the promised payments when due. That’s why this kind of investing is called “fixed income” – the income is fixed. For the purposes of this memo, however, it might help to think of it as “fixed outcome” investing.

这不是程度之别,而是本质之别。拥有型资产(比如普通股、整家公司、房地产、私募股权和实物资产)与债务(债券、贷款、抵押贷款支持证券以及其他承诺付款的现金流)应被视作截然不同的两类东西,而不是同一主题的变体。它们各自有着不同的特性和潜力,而在这两者之间做选择,是投资者必须做出的最根本的决定之一。

关键选择

在这份备忘录开头,我列举了构成资产配置过程的一些决策。但这些决策该如何着手?做决策的框架又是什么?

在我“南下”思考过程中,接下来豁然开朗的一块拼图,是关于投资组合的基本特征。在我看来,有一个决策比投资组合管理过程中的所有其他决策都更重要,并且应该为它们奠定基础。那就是选择目标“风险姿态”,或者说在进攻性与防御性之间所期望的平衡。投资中的关键抉择,在于应把多大比重放在保本上,多大比重放在增值上。这两者大体上是相互排斥的:

This isn’t a difference in degree; it’s a difference in kind. Ownership assets (things like common stocks, whole companies, real estate, private equity, and real assets) and debt (bonds, loans, mortgage backed securities, and other streams of promised payments) should be thought of as entirely different, not variations on a theme. They have different characteristics and potential, and the choice between them is one of the most basic things investors must decide. The Essential Choice At the outset of this memo, I listed some of the decisions that comprise the asset allocation process. But how can those decisions be approached? What’s the framework for making them? The next piece that clicked into place in my thinking “down under” was with regard to the basic characteristics of a portfolio. In my opinion, one decision matters more than – and should set the basis for – all the other decisions in the portfolio management process. It’s the selection of a targeted “risk posture,” or the desired balance between aggressiveness and defensiveness. The essential decision in investing is how much emphasis one should put on preserving capital and how much on growing it. These two things are mostly mutually exclusive:

2024 年橡树资本管理有限合伙公司

2024 Oaktree Capital Management, L.P.

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• •

坚持以资本保全为先——或者退一步讲,以限制投资组合的波动为先——要求把防御放在首位,这就排除了追求最大增长的可能性。相应地,决意追求最大增长则需要侧重进攻,这意味着资本保全和稳健性必须在一定程度上做出牺牲。

Insistence on preserving capital – or, secondarily, on limiting the portfolio’s volatility – calls for an emphasis on defense, which precludes pursuing maximum growth. Correspondingly, a decision to strive to maximize growth requires an emphasis on offense, meaning preservation of capital and steadiness must be sacrificed to some degree.

要么侧重保全资本,要么侧重增长最大化,两者只能选其一,进攻与防守不可兼得。这是投资中根本且无法回避的真理。第一页列出的问题只是细节,是达到你目标风险姿态的可用选项。

从这个角度思考投资组合的构建——寻找进攻与防守之间的恰当平衡——就会清楚,目标应当是优化,而非最大化。在我看来,不应该是“财富”,而是“以恰当方式追求财富,同时考虑投资者的需求与愿望”。

许多人认为投资的恰当目标是获得最高回报。更深层的思考者会明白——无论是理性上还是直觉上——目标应当是实现回报与风险之间的最佳关系。如果你遵循后者,它有望引导你选择预期回报足以补偿其风险的资产,从而构建一个具有吸引力的风险调整后回报潜力的投资组合。但这还不够。

投资组合中的绝对风险水平,不应当成为上述资产配置过程或追求卓越风险调整后回报的无意副产品。绝对风险水平必须有意识地设定目标。事实上,在我看来,这是最重要的事情。要让投资计划成功,投资组合中的风险水平必须得到充分补偿,并且落在理想范围内……既不太高,也不太低。

曲线的形状

最近几个月,我一直在绘制概率分布图,用以说明所有权资产与债务(或“固定收益”、“信用”,随你怎么称呼)潜在回报之间的根本差异。以下是描述所有权资产投资组合潜在回报的曲线大致形状(图 1):

It’s one or the other. You can’t simultaneously emphasize both preservation of capital and maximization of growth, or defense and offense. This is the fundamental, inescapable truth in investing. The questions listed on page one are just details, the options available for reaching your targeted risk posture. If you think about portfolio construction in this sense – looking for the right balance between offense and defense – it becomes clear that the goal should be optimization, not maximization. To my mind, it shouldn’t be “wealth,” but “wealth pursued in an appropriate way, taking into account the investor’s wants and needs.” Many people think the proper goal in investing is achieving the highest return. More sophisticated thinkers understand – either intellectually or intuitively – that the goal should be to achieve the best relationship between return and risk. If you follow that latter mandate, it’ll hopefully lead you to assets whose expected return is more than sufficient to compensate for their risk, and thus to a portfolio with the potential for an attractive risk-adjusted return. But that’s not enough. The absolute level of risk in a portfolio shouldn’t be an unwitting consequence of the asset allocation process described above, or of the search for superior risk-adjusted returns. The absolute risk level must be consciously targeted. In fact, in my view, it’s the most important thing. For an investment program to be successful, the level of risk in the portfolio must be well compensated and fall within the desired range . . . neither too much nor too little. The Shape of the Curves In the last few months, I’ve been drawing probability distributions to illustrate the fundamental difference between the potential returns from ownership assets and debt (or “fixed income,” “credit,” or whatever you want to call it). Here’s the general shape of the curve describing the potential return on a portfolio of ownership assets (Figure 1):

第 4 页之后展示的是描述一组债务组合潜在回报曲线的形状(图 2):

And following on page four is the shape of the curve describing the potential return on a portfolio of debt (Figure 2):

2024 年橡树资本管理有限合伙公司

2024 Oaktree Capital Management, L.P.

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股权类资产通常预期回报更高,上行空间更大,下行风险也更大。在其他条件相同的情况下,债券的预期回报较低,但波动范围很可能窄得多。债券一般没有上行空间——没有人应该买一张 8% 的债券,却指望长期每年赚超过 8%。但它的下行空间也相对有限——只要借款人还钱,你就能拿到那 8%,而违约的人相对不多。正因如此,进攻通常更适合用股权类资产来打,防守则更适合用债券来守。(我赶紧补充一句:投资不是非此即彼的事。两者可以结合,真正的问题在于如何搭配。)

在 2009 年到 2021 年盛行的低利率环境下,债券的预期回报绝对值极低,远低于股票的历史回报,这让债券显得相对缺乏吸引力(图 3)。

Ownership assets typically have a higher expected return, greater upside potential, and greater downside risk. Everything else being equal, the expected returns from debt are lower but likely to fall within a much tighter range. There’s generally no upside on debt – no one should buy an 8% bond expecting to make more than 8% per year over the long term. But there’s also relatively little downside – you’ll get your 8% if the borrower pays, and relatively few fail to pay. For this reason, offense is usually better played through ownership assets, and defense is usually better played through debt. (I hasten to add that investing isn’t a matter of either/or. The two can be combined, meaning the operative question surrounds the right mix.) In the low-interest-rate environment that prevailed from 2009 through 2021, the expected return from debt was extremely low in the absolute and far below the historical return on equities, rendering debt relatively unattractive (Figure 3).

但如今,这一比例已显著高于以往,且接近股票的水平(图 4)。正因如此,我一直呼吁加大对信贷领域的投资。

But today, it’s considerably higher than it was and closer to that of equities (Figure 4). That’s why I’ve been urging increased investment in credit.

显然,某一时点上这两条曲线的相对关系,直接决定了当时应采取的资产配置策略。

Obviously, the relationship between the two curves at a point in time has a very direct bearing on the appropriate asset allocation at that time.

2024 年橡树资本管理有限合伙公司

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所有权和债务,哪个“更好”?我们无法断言。在一个具备任何程度效率——也就是理性——的市场里,这不过是一种权衡取舍。更高的预期回报,附带更大的上行潜力,代价是更高的不确定性、波动性和下行风险?还是更可靠但预期回报较低,上行和下行空间都更小?两者之间的选择是主观的,很大程度上取决于投资者的个人状况和对承担风险的态度。这意味着,不同投资者的答案会各不相同。

选择攻守平衡

我之前表达过这样一个观点:作为起点,每位投资者或其投资经理都应确定自己合适的常态风险姿态,即攻守平衡。对每个个人或机构而言,这一决定应基于投资者的投资期限、财务状况、收入、需求、抱负、责任,以及至关重要的——胆量,也就是承受起伏的能力。

一旦投资者确定了适合自己的常态风险姿态,他们就面临一个选择:可以始终维持这一姿态,也可以选择偶尔偏离它,以回应市场的波动以及由此带来的投资机会吸引力的变化——在市场低迷时加强进攻,在市场高企时加强防守。然而,无论一个人的风险姿态是固定的还是可变的,下一个问题就是如何达到这一姿态。这个问题让我想到另一个老生常谈的观点:风险与回报之间的关系。我已经无数次描述过芝加哥大学当年教授这一理念的方式,从 20 世纪 60 年代我在那里读书时就开始。那是一个我们此后都见过的图形展示:从左往右移动,预期风险增加,预期回报也随之上升(图 5):

Which of the two is “better,” ownership or debt? We can’t say. In a market with any degree of efficiency – that is, rationality – it’s just a tradeoff. A higher expected return with further upside potential, at the cost of greater uncertainty, volatility, and downside risk? Or a more dependable but lower expected return, entailing less upside and less downside? The choice between the two is subjective, largely a function of the investor’s circumstances and attitude toward bearing risk. That means the answer will be different for different investors. Choosing the Offense/Defense Balance I’ve previously expressed my view that, as a starting point, every investor or their investment manager should identify their appropriate normal risk posture or offense/defense balance. For each individual or institution, this decision should be informed by the investor’s investment horizon, financial condition, income, needs, aspirations, responsibilities, and, crucially, intestinal fortitude, or their ability to stomach ups and downs. Once investors have specified the normal risk posture that’s right for them, they face a choice: they can maintain that posture all the time, or they can opt to depart from it on occasion in response to the movements of the market and thus changes in the attractiveness of the offerings it provides, increasing their emphasis on offense when the market is beaten down and on defense when it’s riding high. Regardless of whether one’s risk posture is fixed or variable, however, the next question is how one gets there. This question led me to think about another old idea: the relationship between risk and return. I’ve described a million times the way this was taught at the University of Chicago, beginning when I was there in the 1960s. It’s a graphical presentation we’ve all seen ever since, in which, as we move from left to right, increasing the expected risk, the expected return also increases (Figure 5):

读者知道,我一直觉得这种表述远远不够,因为图表中关系的线性让人觉得风险增加必然带来回报增加,这显然掩盖了风险的本质。因此,在 2006 年的一份备忘录中,我沿着同样的思路,在图上叠加了几条钟形曲线,表示概率分布的侧视图。我这样做是为了说明风险资产回报的不确定性(图 6):

As readers know, I always felt this representation was highly inadequate, since the linearity of the relationship in the graph makes it appear too certain that increased risk will lead to increased return. This obviously belies the nature of risk. So, in a memo in 2006, I took the same line and superimposed on it some bell-shaped curves representing probability distributions turned on their side. I did this to indicate the uncertain nature of returns from riskier assets (Figure 6):

2024 年橡树资本管理有限公司

2024 Oaktree Capital Management, L.P.

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现在我们可以看到,所谓“风险”一旦增加(也就是在图上从左向右移动),不但预期回报随之上升,可能出现的回报区间变得更宽,糟糕的结果也变得更糟。这才是风险!(希望我离世之后,这种呈现风险的方式能被看作我对投资行业的一项长久贡献。)

某天涂鸦时,我把图 4 中描述所有权资产回报和债务回报的黑线与绿线取来,又添上蓝色和红色两条表示介于两者之间的仓位,用来标示两者的各种组合。于是,蓝色曲线代表 2/3 债务加 1/3 所有权,红色曲线代表 1/3 债务加 2/3 所有权(图 7):

Now, we see that as the thing called “risk” increases (that is, as we move from left to right on the graph), not only does the expected return increase, but the range of possible outcomes becomes wider and the bad outcomes become worse. That’s risk! (I hope this way of presenting risk will be considered a lasting contribution to the investment industry when I’m gone.) Doodling one day, I took the black and green curves describing ownership asset returns and debt returns from Figure 4 and added some intermediate positions in blue and red to indicate various combinations of the two. Thus, the blue curve is 2/3 debt and 1/3 ownership, and the red is 1/3 debt and 2/3 ownership (Figure 7):

在澳大利亚展示这张图时,我突然意识到,图 7 不过是图 6 所表达思想的另一种呈现方式。同样地,当我们从左向右移动(更多股权类资产,更少债务)时,预期回报上升,预期风险也上升(也就是说,与图 6 一样,可能结果的范围变得更宽,左侧尾部延伸至更不利的领域)。这种呈现选项的方式或许更直观明了。

相信图 5 所描绘的“风险越大,回报越大”的人,理应采取高风险姿态。但如果他们理解了风险增加的真实含义,如图 6 和图 7 所示,那么他们或许会选择更为稳健的策略。

阿尔法与贝塔的作用

以上所有论述都假设市场是有效的:

In Australia, as I was showing this diagram, it struck me that Figure 7 is just another way to represent the idea presented in Figure 6. Again, as we move from left to right (more ownership assets, less debt), the expected return increases and the expected risk increases (that is, just as in Figure 6, the range of possible outcomes grows wider and the left-hand tail stretches further into undesirable territory). This way of presenting the options might be more intuitively clear. Someone who believes in “more risk, more return” as portrayed in Figure 5 should logically adopt a highrisk posture. But if they understand the real implications of increased risk, as suggested by Figures 6 and 7, then they might opt for something more moderate. The Role of Alpha and Beta All the foregoing assumes markets are efficient: •

在有效市场中,风险增加,预期回报也按比例增加。或许更准确的说法是反过来:预期回报增加,伴随的风险(结果的不确定性及出现糟糕结果的概率)也随之增加。因此,在风险连续谱上(例如图 6 中)的任何一个位置,都不比其他位置“更好”。这完全取决于你想在绝对风险水平上达到哪里,或你追求多高的绝对回报水平。

As risk increases in an efficient market, expected return increases proportionally. Or maybe that’s better stated the other way around: as expected return increases, so does the accompanying risk (the uncertainty surrounding the outcome and the likelihood of a bad one). Thus, no position on the risk continuum (for example, in Figure 6) is “better” than any other. It’s all just a matter of where you want to come out in terms of absolute riskiness, or what absolute level of return you

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想要达到的目标。在风险连续体的每一个位置上,回报与风险的比率都相似——靠左时两者都较少,靠右时两者都较多。换句话说,天下没有免费的午餐。此外,审视风险连续体上的每个位置,围绕预期回报的可能回报垂直分布的对称性,在各位置之间也相差无几。这意味着在连续体上某一位置的上涨潜力与下跌风险之比,并不比在其他位置显著更优——同样,没有免费的午餐。最后,如果你想在风险连续体上走得更远,可以通过两种方式实现:(a)投资于风险更高的资产,或(b)对相同资产运用杠杆(同时放大预期回报和风险)。同样,在完全有效的市场中,这两种策略没有孰优孰劣之分。

want to aim for. The ratio of return to risk is similar at all points on the continuum – less of both toward the left, and more of both toward the right. Said another way, there’s no free lunch. Also, looking at each position on the risk continuum, the symmetricalness of the vertical distribution of possible returns around the expected return is similar from one position to the next. That means the ratio of upside potential to downside risk at one position on the continuum isn’t markedly better than it is at other positions – again no free lunch. Finally, if you want to move further out on the risk continuum, you can do so by either (a) investing in riskier assets or (b) applying leverage to the same assets (magnifying both the expected return and risk). Again, in a fully efficient market, neither tactic is preferable to the other.

上面这三点陈述,揭示了所谓市场有效性的几个重要含义。按这种看法,唯一要紧的事,就是为自己确定恰当的风险位置;在假设市场有效的前提下,给定风险水平上,想靠回报率多赚一点是没有门路的。无论用哪种方式达到某一风险水平,预期回报都一样。

原因在于学术界认为,在有效市场里:(a)所有资产彼此定价公平,不存在可捡的便宜货,也没有被高估的机会可利用;(b)没有所谓阿尔法这种东西——我把阿尔法定义为“靠个人高超技巧获得的收益”。结果,主动决策毫无用处:没有哪类资产、哪种策略、哪只证券或哪位经理人比别的“更好”。它们只是在风险和随之而来的回报上有所差别。

同样按学术观点,既然没有阿尔法这回事,区分资产的唯一标准就是贝塔,也就是它们的相对波动性,即它们与市场走势的联动程度。在理论里,预期回报与贝塔成正比。

现在,我得斩钉截铁地说一句:实际上,市场并不像学术定义说的那样,总是“正确”。市场或许能高效地做到(a)迅速消化新信息,(b)准确反映出在全部信息面前,大家一致认同的每项资产的合理价格——但这种认同可能离正确差得远。正因为如此,在选项之间巧妙挑选,是可以取得收益的:

The above three statements capture some of the important implications of supposed market efficiency. Looked at this way, the only thing that matters is getting to the right risk position for you; under an assumption of market efficiency, there’s nothing to be gained in terms of return at a given level of risk. All ways of getting to a certain risk level will produce the same expected return. The reason for this is the academic view that, in an efficient market, (a) all assets are priced fairly relative to each other, such that there are no bargains or over-pricings to take advantage of and (b) there’s no such thing as alpha, which I define as “gains resulting from superior individual skill.” As a result, there’s nothing to be gained from active decision making: no asset class, strategy, security or manager is “better” than any other. They merely vary in terms of risk and resulting return. Also in the academic view, since there’s no such thing as alpha, the only thing that differentiates assets is their beta, or their relative volatility, the extent to which they reflect market movements. In the theory, it’s beta that expected returns are proportional to. Now it’s time for me to assert strenuously that, in reality, markets are not efficient in the academic sense of always being “right.” Markets may do an efficient job of (a) rapidly incorporating new information and (b) accurately reflecting the resulting consensus opinion concerning the right price for each asset given the totality of information, but that opinion can be far from correct. For that reason, gains can be achieved by choosing skillfully among the options: • •

有些资产、市场或策略能提供比其它选择更划算的风险/回报比,而某些管理者则能在特定市场或策略框架内运作,创造出更优的风险调整后回报。

some assets, markets or strategies can offer a better risk/return bargain than others, and some managers can operate within a market or strategy to produce superior risk-adjusted returns.

最后一个想法引出了资产配置中的一个关键问题:你是否应该为了投资于一个被认为具备阿尔法收益的管理人所管理的风险更高的资产类别,而偏离自己风险水平上的“最佳位置”?这个问题没有简单的答案,尤其是考虑到许多被认为具备阿尔法收益的管理人最终并未展现出这种能力。

为了总结,我将回顾几个要点:

This last idea raises one of the key questions in asset allocation: should you consider departing from your “sweet spot” in terms of risk level in order to invest in a riskier asset class with a manager believed to possess alpha? There’s no easy answer to this question, especially given that many managers who are believed to possess alpha turn out not to. To conclude, I’ll recap the key points: • • • •

归根到底,资产类别只有两种:股权和债权。

它们在本质属性上差异巨大。

股权类资产与债权类资产应当相互搭配,以将你的投资组合置于风险收益谱系中适合你的位置。这是投资组合管理或资产配置中最关键的决策。

其余决策不过是执行层面的问题。

Fundamentally speaking, the only asset classes are ownership and debt. They differ enormously in terms of their fundamental nature. Ownership assets and debt assets should be combined to get your portfolio to the position on the risk/return continuum that’s right for you. This is the most important decision in portfolio management or asset allocation. The other decisions are merely a matter of implementation.

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当然,你的资产配置过程会受到你对自己识别和接触优质策略及卓越管理人能力的评估影响,同时也需明白做到这一点并不容易。

Of course, your asset allocation process will be informed by how you rate your ability to identify and access superior strategies and superior managers, recognizing that doing so isn’t easy. *

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回到现实世界,我想针对橡树资本的一个关键领域——非投资级信贷(定义为履约中的非政府债务)——提出几点重要观察:

Moving on to the real world, I want to make some important observations regarding one of Oaktree’s key sectors, non-investment grade credit (defined as performing non-government debt): • • •

当下这一领域中可预期的回报,远比 2009 年至 2021 年期间的要高。这些回报,从公开信贷的约 7% 到私人信贷的约 10% 起步,与股票的历史回报水平相比毫不逊色,并且有望帮助众多投资者迈向他们的整体回报目标。由于信贷具有契约性质,其回报很可能比所有权回报要可靠得多。

The prospective returns in this area today are much higher than they were in the 2009-21 period. These returns, starting at roughly 7% on public credit and 10% on private credit, are competitive with the historical returns on equities and capable of helping many investors toward their overall return targets. Because of their contractual nature, the returns from credit are likely to prove much more dependable than ownership returns.

在我看来,这份备忘录中的思考过程引向一个结论:如果投资者(a)被 7-10% 左右的回报所吸引,(b)希望限制不确定性和波动,以及(c)愿意为此放弃当前收益率之上的上行潜力,他们就应该增加在这一领域的配置。对我而言,这应该涵盖大量投资者,即便不是所有人。

我目前的建议是,投资者进行必要的研究以增加对信贷的配置,为此制定一个“计划”,并采取部分步骤来实施它。虽然当前的潜在回报按绝对值看颇具吸引力,但一两年前信贷能提供更高的回报,如果市场不再被乐观情绪主导,我们可能再次看到那样的回报。我相信那样的时刻会到来。

感谢您容忍我这一番投资哲学的探讨。希望您觉得它有所价值。

2024 年 10 月 22 日

In my view, the thought process set forth in this memo leads to the conclusion that investors should increase their allocations in this area if they are (a) attracted by returns of 7-10% or so, (b) desirous of limiting uncertainty and volatility, and (c) willing to forgo upside potential beyond today’s yields to do so. For me, that should include a lot of investors, even if not everyone. My recommendation at this time is that investors do the research required to increase their allocation to credit, establish a “program” for doing so, and take a partial step to implement it. While today’s potential returns are attractive in the absolute, higher returns were available on credit a year or two ago, and we could see them again if markets come to be less ruled by optimism. I believe there will be such a time. Thank you for indulging me in this foray into investment philosophy. I hope you’ve found it of value. October 22, 2024

2024 年橡树资本管理有限合伙企业

2024 Oaktree Capital Management, L.P.

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