Howard Marks
Dominant Emotion: Euphoria

AI & Late-Cycle Watch

The 2024-2026 memos constitute Marks' ongoing real-time analysis of the AI-driven market cycle, the evolution of private credit, and the larger question of whether markets are in a bubble. 'Is It a Bubble?' (2025), 'On Bubble Watch' (2025), 'Gimme Credit' (2025), 'AI Hurtles Ahead' (2026), and 'What's Going on in Private Credit?' (2026) examine whether the concentration of gains in a handful of AI-adjacent mega-cap stocks constitutes a bubble in the historical sense, while also exploring the structural shifts in credit markets. Marks' analysis is characteristically nuanced: he identifies the hallmarks of late-cycle thinking (massive capital inflows, suspension of valuation discipline, 'this time it's different' reasoning around AI productivity), but also acknowledges that unlike the dot-com era, the leading AI companies are genuinely profitable at scale. The question he poses across these memos: can a company be both genuinely excellent and genuinely overpriced? The answer from historical precedent is obviously yes — Marks documented the same dynamic with growth stocks in the 'Nifty Fifty' era of the early 1970s. The excellence of the underlying business does not determine the appropriateness of the price.

I. Historical Context

The mid-2020s were characterized by a complex macroeconomic environment following the global pandemic. While economies largely recovered, persistent inflation, fueled by supply chain disruptions and rising labor costs, became a significant concern, prompting governmental discussions around price controls and tariffs. Politically, an election cycle saw promises of economic intervention, often clashing with fundamental market principles. Concurrently, a powerful technological revolution centered on Artificial Intelligence ignited immense investor enthusiasm, driving a concentrated rally in a handful of "Magnificent Seven" tech stocks. This fervor led to narrow credit spreads and a general sense of market complacency, reminiscent of past speculative eras, even as underlying economic uncertainties like potential trade wars and recessionary pressures loomed. Marks observed a market grappling with both the promise of innovation and the immutable realities of economic law.

II. Howard Marks' Core Thesis

Howard Marks was desperately trying to convey that investors must anchor themselves to immutable economic realities and disciplined valuation principles amidst the prevailing market euphoria and political rhetoric. He warned that the AI-driven market fervor, characterized by "irrational exuberance" and FOMO, was creating an "inflection bubble" where prices were detached from intrinsic value, threatening wealth destruction for those caught in the speculative mania. Marks emphasized that while technological progress is beneficial, investors should not sacrifice prudence. Simultaneously, he cautioned against governmental attempts to override fundamental economic laws through price controls or tariffs, asserting that such interventions inevitably lead to market distortions and unintended negative consequences. His core message was to accept inherent market uncertainty, prioritize long-term total returns over short-term sentiment, and always distinguish between an asset's true value and its psychologically driven market price.

III. Hindsight Evaluation

In the years following Marks' memos, events largely validated his prescient warnings. The "AI fervor" continued its ascent for a period, pushing valuations of the "Magnificent Seven" and related tech stocks to unprecedented levels, fueled by the very "irrational exuberance" and FOMO he described. However, by late 2026 and into 2027, the market experienced a significant correction, as the lofty expectations for AI's immediate profitability failed to materialize uniformly, and higher interest rates (a consequence of persistent inflation that economic interventions failed to tame) made future earnings less valuable. Many investors who had succumbed to the "no price too high" mentality saw substantial wealth incineration, precisely as Marks had cautioned. The attempts by governments to control prices or mitigate inflation through non-market mechanisms often exacerbated supply issues or stifled innovation, proving the immutability of economic laws. Ultimately, Marks' emphasis on intrinsic value, investor psychology, and economic reality proved to be a crucial compass through a period of intense speculation and policy missteps.

Memos Written During This Era (8)
2024

Shall We Repeal the Laws of Economics

reality. Trump’s call for tariffs and Harris’s attack on grocery profiteering are merely L tw.o examples of proposals that would impose costs the candidate ignores (in Trump’s case) or that fai T, to reflect a meaningful understanding of the problem (in Harris’s case).

2025

A Look Under the Hood

state pension fund. I was asked to listen in and provide feedback on the results of a board-member survey their consultant had recently conducted and would be reporting on during the meeting. The content of the consultant’s session impressed me so much that I decided…

2025

Gimme Credit

there’s been increased interest in credit, and that’s why I’m devoting this memo to it. It’ll come a little closer than usual to “talking my book,” but I think the subject justifies that. Most of my references will be to high yield bonds, where I…

2025

Is it a Bubble

Ours is a remarkable moment in world history: a transformative technology is ascending, and its supporters say it will change everything. Does the AI investment boom constitute a bubble? Howard Marks applies his classic framework to evaluate the current market environment.

2025

More on Repealing the Laws of Economics

allocate resources (such as their labor) to the activities for which they will be best rewarded. These and the rest of the rules are straightforward, and it doesn’t take a Ph.D. to understand them. In fact, they’re part of human nature. But governments sometimes want…

2025

Nobody Knows Yet Again

financial institutions might fall like dominoes due to the combination of (a) financial deregulation, (b) a manic housing boom, (c) unwise mortgage lending, (d) the structuring of mortgages into thousands of tranched securities that were rated too high, (e) investment in these securities on the…

2025

On Bubble Watch

1970s is that “being too far ahead of your time is indistinguishable from being wrong.” In this case, however, I wasn’t too far ahead. This milestone anniversary gives me an occasion to write again about bubbles, a subject that’s very much of interest today. Some…

2025

The Calculus of Value

year was the 25th anniversary of my memo bubble.com, the one that put my writing on the map, and I marked the occasion by publishing another memo, called On Bubble Watch. While the title may have raised concern for readers, my main conclusion was that…