风险不可或缺

2024 (explicit) · memo · 原文约 1590 词
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Memo to:

Memo to:

Oaktree Clients

Oaktree Clients

From:

From:

Howard Marks

Howard Marks

Re:

Re:

风险不可或缺

The Indispensability of Risk

很多时候,我们往往能通过类比来更好地理解感兴趣的事物——类比在事物与其他生活领域之间建立联系,从而阐明问题。正因如此,在我撰写备忘录的四十载岁月里,每十年我都会写一篇将投资与体育相提并论的备忘录,2020 年还写一篇把投资和打牌联系起来的文章。

这篇备忘录的动因,来自《华尔街日报》4 月 12 日的一篇文章。我的合伙人布鲁斯·卡什转寄给我,题为《国际象棋教给我们牺牲的力量》,作者是莫里斯·阿什利,一位已入选美国国际象棋名人堂的特级大师。很少有人知道布鲁斯会下国际象棋,多年来我也没再想过这茬,但这篇文章提了个醒,促使我匆匆写下这篇备忘录。

正如文章标题所示,这篇文字主要讲牺牲的作用。阿什利说:“许多局面,若不舍弃有价之物,从卑微的兵卒到权倾一时的王后,便无法获胜或求得生路。”阿什利所指的牺牲,是在对局中故意弃子作为策略的一部分。

Oftentimes, we’re best able to understand something we’re interested in through analogies that clarify the matter by establishing connections between it and other parts of life. That’s why I’ve written a memo comparing investing to sports in each of the four decades I’ve been writing memos and one connecting investing and card playing in 2020. The motivation for this memo comes from an article in The Wall Street Journal of April 12 that my partner Bruce Karsh sent me entitled “Chess Teaches the Power of Sacrifice” by Maurice Ashley, a chess grandmaster who has been inducted into the U.S. Chess Hall of Fame. Few people know that Bruce is a chess player, and I hadn’t thought about this fact for years, but the article provided a good reminder and moved me to dash off this memo. As is obvious from the article’s title, the piece is mostly about the role of sacrifice. Ashley says, “Many positions cannot be won or saved without something of value being given away, from a lowly pawn all the way up to the mighty queen.” Intentionally losing a piece as part of one’s gameplan is the sacrifice that Ashley is referencing. •

他将某些弃子称为“虚弃”(shams)——这个词由国际象棋大师鲁道夫·斯皮尔曼在其著作《国际象棋中的弃子艺术》中首创——指“……可以清楚看出,被放弃的棋子所带来的实际收益是可以精确计算的。”换句话说,我把一个棋子置于明显的险境,但这么做是为了能吃掉你价值更高的一个棋子。

另一些弃子则被视为“实弃”(real sacrifices),其中“……放弃一个棋子带来的收益既非立竿见影,也非有形可触。其回报可能是控制更多空间,在对手阵型中制造可攻击的弱点,或在关键攻击区域部署更多兵力。”

He describes some sacrifices as “shams,” (a term coined by chess master Rudolf Spielmann in his book The Art of Sacrifice in Chess) where “. . . one can easily see that the piece being given up will return concrete benefits that can be clearly calculated.” In other words, I put a piece in clear jeopardy, but I do this so that I’ll be able to take one of yours of greater value. Others are deemed “real” sacrifices, where “. . . giving away a piece offers gains that are neither immediate nor tangible. The return on investment might be controlling more space, creating an assailable weakness in the opponent’s position, or having more pieces in the critical sector of attack.”

与投资的类比开始变得清晰。购买 10 年期美国国债是一种适度或“虚假”的牺牲。你放弃使用资金十年,但这仅仅是机会成本,接受它则带来利息收入的确定性。大多数其他投资则涉及真正的牺牲,因为亏损的风险是为了追求“既非即时也非有形的收益”而承担的。阿什利继续以投资者熟悉的风险回报术语来谈论牺牲。他描述母亲在他两岁时决定离开他和两个兄弟姐妹,留在牙买加,自己前往美国,为她自己和孩子们寻求更好的生活。她十年后实现了目标,得以将孩子们带到美国,在那里他们在多个领域取得了成功:

事情本不必如此发展。之所以如此,是因为她愿意承受真正牺牲的关键方面:承担风险的意愿。对于棋手而言,风险既是直觉也是计算。由于棋局固有的复杂性,几乎不可能确定一步险棋最终是否会有所回报。由棋手决定是否满足足够的条件去冒险一试……

The analogy to investing begins to become clear. Buying a 10-year U.S. Treasury note is a modest or “sham” sacrifice. You give up the use of your money for ten years, but that’s only an opportunity cost, and accepting it brings the certainty of interest income. Most other investments involve real sacrifices, though, where the risk of loss is borne in pursuit of “gains that are neither immediate nor tangible.” Ashley goes on to speak of sacrifice in risk/return terms that are familiar to investors. He describes his mother’s decision to leave him (at age two) and his two siblings in Jamaica and travel to the U.S. in search of a better life for herself and for them. She reached her goal a decade later and was able to bring her kids to the U.S., where they would find success in a variety of fields: It did not have to turn out that way. It did because she was willing to stomach the key aspect of making real sacrifices: the willingness to take risks. For a chess player, risk is as much intuited as it is calculated. Due to the inherent complexity of the game, it is virtually impossible to assess with certainty whether a risky move will pay off in the end. It’s up to the player to decide if sufficient conditions have been met to take the chance on a risky move. . . .

2024 橡树资本管理有限合伙公司

2024 Oaktree Capital Management, L.P.

保留所有权利

All Rights Reserved

但我们确实知道,那句名言“不入虎穴,焉得虎子”在许多情况下是成立的。一个老练的对手通常能应对稳健保守的打法,从而可能剥夺我们局面中固有的机会。正如五届国际象棋世界冠军马格努斯·卡尔森所说:“不愿冒险本身就是一种极其冒险的策略。”(着重号为我所加)

这就是结论:风险不可或缺。

不冒险的风险

因为未来本质上是不可预测的,我们通常不得不在以下几种选择中取舍:(a)回避风险,回报微薄甚至为零;(b)承担适度风险,满足于相应适度的回报;或(c)为追求丰厚收益而承受高度不确定性,但同时也接受可能遭受重大永久性损失的风险。人人都希望能以低风险博取高收益,但市场的“有效性”——即市场其他参与者并非等闲之辈——通常排除了这种可能性。

大多数投资者都能做到“a”和大部分“b”。投资中的挑战在于追求某种形式的“c”。要获得高回报——无论是绝对收益还是相对于市场中其他投资者的表现——你必须承担有意义的风险:要么是在追求绝对收益时面临亏损的可能,要么是在追求超越时面临表现不佳的可能。

在每种情况下,两者都是不可分割的。正如阿什利所说,无风险,无回报;不劳,则无获。

不承担足够风险的风险是真实存在的。回避风险的散户投资者最终可能获得不足以支撑其生活成本的回报。而承担风险过少的专业投资者可能无法满足客户的期望或基准要求。

像国际象棋(以及大多数纸牌游戏)一样,双陆棋也需要计算何时该冒险、何时该规避风险。在双陆棋中,两位玩家根据一对骰子的点数在棋盘上移动棋子。一位玩家顺时针移动,另一位逆时针移动。当双方的棋子靠近时,移动方通常面临两种选择:(a)落在对手棋子上,将其送回起点(但冒着自己棋子暴露于危险位置的风险),或(b)避而远之,采取稳妥打法。没有人愿意暴露被击中。但大多数初学者过于保守,因为他们太专注于避免被击中,反而很少能赢。

来自体育领域的相关教训(已包含在过去的备忘录中)容易获取且非常有益:

What we do know, however, is that the famous saying “No risk, no reward” is true in many cases. A skilled adversary is normally able to handle solid, conservative play and therefore able to rob us of opportunities that may be inherent in our position. As [fivetime world chess champion] Magnus Carlsen put it, “Not being willing to take risks is an extremely risky strategy.” (Emphasis added) And there you have it: the indispensability of risk. The Risk of Not Taking Risk Because the future is inherently uncertain, we usually have to choose between (a) avoiding risk and having little or no return, (b) taking a modest risk and settling for a commensurately modest return, or (c) taking on a high degree of uncertainty in pursuit of substantial gain but accepting the possibility of substantial permanent loss. Everyone would love a shot at earning big gains with little risk, but the “efficiency” of the market – meaning the fact that the other participants in the market aren’t dummies – usually precludes this possibility. Most investors are capable of accomplishing “a” and most of “b.” The challenge in investing lies in the pursuit of some version of “c.” Earning high returns – in absolute terms or relative to other investors in a market – requires that you bear meaningful risk – either the possibility of loss in the pursuit of absolute gain or the possibility of underperformance in the pursuit of outperformance. In each case, the two are inseparable. As Ashley says, no risk, no reward. No pain, no gain. The risk inherent in not taking enough risk is very real. Individual investors who eschew risk may end up with a return that is insufficient to support their cost of living. And professional investors who take too little risk may fail to keep up with their clients’ expectations or their benchmarks. Like chess (and most card games), backgammon requires the calculation of when to take risk and when to avoid it. In backgammon, two players move their checkers around the board based on throws of a pair of dice. One player moves clockwise and the other counterclockwise. When players’ checkers come near each other, the player who’s moving often has a choice between (a) landing on one of the other player’s checkers, sending it back to the start (but at the risk of leaving the moving checker in a vulnerable position), and (b) avoiding doing so to play it safe. No one wants to be exposed and get hit. But most beginners play it too safe, and because they put so much emphasis on avoiding getting hit, they rarely win. Relevant lessons from sports (included in past memos) are easily accessed and also very helpful: • •

“不投的球,命中率永远是 0%。”——韦恩·格雷茨基,NHL 名人堂成员

“你得给自己失败的机会。”——肯尼“喷气机”史密斯,两届 NBA 总冠军

“You miss 100% of the shots you don’t take.” – Wayne Gretzky, NHL Hall of Famer “You have to give yourself a chance to fail.” – Kenny “The Jet” Smith, two-time NBA champion

我用去年九月备忘录《少一点失败者,还是多一点赢家?》中的一段话来总结。最后一句话道尽了牺牲与风险的深意:

……一个失败者都没有,并不是有意义的目标。唯一能确保做到这一点的方法,就是不冒任何风险。但……回避风险,往往意味着回避回报。有一种风险,叫做风险冒得太少。大多数人在理智上明白这个道理,但人性使然,许多人难以接受一个事实:愿意承受一些损失,是投资成功不可或缺的一部分。

I’ll sum up with a paragraph from my memo of last September, Fewer Losers, or More Winners? The final sentence says a great deal about sacrifice and risk: . . . not having any losers isn’t a useful goal. The only sure way to achieve that is by not taking any risk. But … risk avoidance is likely to result in return avoidance. There’s such a thing as the risk of taking too little risk. Most people understand this intellectually, but human nature makes it hard for many to accept the idea that the willingness to live with some losses is an essential ingredient in investment success.

2024 年,橡树资本管理有限合伙公司

2024 Oaktree Capital Management, L.P.

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如何思考承担风险

承担风险这一悖论无法回避。在竞争激烈、抱负远大的领域,不冒险就无法成功。但冒险并不保证成功;正因为如此,才称之为风险。

同样矛盾的是,长期取得高回报率并不一定——通常也不会——意味着持续成功的记录。更多时候,它来自大量论证充分、审慎合理的投资,其中一部分取得了良好结果。以下是我在《少一些失败者,还是多一些胜利者?》一文中,对伯克希尔·哈撒韦成功基础的描述:

我相信沃伦[巴菲特]和查理[芒格]卓越表现的要素很简单:(a)大量他们做得还算不错的投资,(b)相对少数重仓投入并持有数十年的重大胜利,(c)相对较少的大幅亏损。没有人应该指望自己的投资——或指望自己的资金管理人——全部都是大赢家而没有输家。

投资者必须接受,成功很可能源于大量投资的积累。你投资每一笔,都是因为预期它会成功,但你心里清楚其中一部分不会如愿。你必须放手一搏,必须出手尝试。并非每次努力都能换来高回报,但希望足够多的努力能成功,从而在长期内创造佳绩。最终的成功取决于赢家与输家的比例,也取决于亏损相对于收益的规模。然而,在这一过程中拒绝承担风险,不太可能带你抵达想去的地方。

最后,我再引用阿什利的一段精彩文字来收尾:

冒险并不意味着一定会有成功的结果,也不要求必须有。只要理由站得住脚,就应当近乎本能地承担风险。我们越是信任自己的判断,对自身决策能力的信心就越强。敢于承担风险的勇气本身,就是一种值得追求的目标。

追求卓越投资回报的底线再清楚不过:你不该指望不承担风险就能赚钱,但也不该指望仅仅承担风险就能赚钱。你必须放弃确定性,但放弃的方式必须讲究技巧、明智理性,并且情绪受控。

2024 年 4 月 17 日

How to Think About Risk-Taking The paradox of risk-taking is inescapable. You have to take it to be successful in competitive, highaspiration arenas. But taking it doesn’t mean you’ll be successful; that’s why they call it risk. Equally paradoxical, earning a high rate of return over a long time period doesn’t have to – and usually doesn’t – connote a record of consistent success. More often it results from having made a lot of wellreasoned investments, some subset of which worked out well. Here’s how I described the basis for the success of Berkshire Hathaway in Fewer Losers, or More Winners?: I believe the ingredients of Warren [Buffett]’s and Charlie [Munger]’s great performance are simple: (a) a lot of investments in which they did decently, (b) a relatively small number of big winners that they invested in heavily and held for decades, and (c) relatively few big losers. No one should expect to have – or expect their money managers to have – all big winners and no losers. Investors must accept that success is likely to stem from making a large number of investments, all of which you make because you expect them to succeed, but some portion of which you know won’t. You have to put it all out there. You have to take a shot. Not every effort will be rewarded with high returns, but hopefully enough will do so to produce success over the long term. That success will ultimately be a function of the ratio of winners to losers, and of the magnitude of the losses relative to the gains. But refusal to take risk in this process is unlikely to get you where you want to go. I’ll conclude with another good paragraph from Ashley: Taking a chance doesn’t mean there will be a successful outcome, nor does it require it. If the reasons are sound, the risk should be taken almost reflexively. The more often we trust our judgment, the more confidence we gain in our decision-making capacity. The courage to take risks becomes a worthwhile end in itself. The bottom line on the quest for superior investment returns is clear: You shouldn’t expect to make money without bearing risk, but you shouldn’t expect to make money just for taking risk. You have to sacrifice certainty, but it has to be done skillfully and intelligently, and with emotion under control. April 17, 2024

2024 橡树资本管理有限合伙公司

2024 Oaktree Capital Management, L.P.

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