Goldman's 2026 Outlook: The Paradox of Small-Cap Strength and the Enduring Tech Favoritism

Goldman Sachs is framing 2026 as a year of continued, but more measured, global equity expansion. The firm's central forecast calls for 11% returns over the next 12 months for global stocks, a notable moderation from the 18% gains seen in 2025. This outlook is built on a foundation of solid economic growth and corporate earnings, with the strategists emphasizing that returns are expected to be "driven more by fundamental profit growth rather than by rising valuations". The world economy is poised for continued expansion, supported by a Federal Reserve forecast to deliver modest easing, creating a macro backdrop that Goldman deems resilient enough to likely avoid a major bear market without a recession.

The firm's outlook is structured around five key investment themes, with AI adoption emerging as a primary driver. This is coupled with expectations for accelerating GDP growth, corporate re-leveraging, a rise in IPOs and dealmaking, and a search for value stocks. The AI theme is particularly nuanced; Goldman expects AI investment to increase this year even as the growth in capex decelerates, suggesting the productivity boost from the technology will be a persistent earnings catalyst.

Yet this bullish setup is counterbalanced by a powerful structural headwind: record market concentration. The firm notes that stock market capitalization is the most concentrated on record, with the top tech stocks accounting for a dominant share of recent returns. This concentration has been a clear positive for the market, but it creates a ceiling for a broad re-rating of smaller companies. The very strength of the largest firms embeds significant idiosyncratic risk into the index, making the overall market more dependent on their continued outperformance. In essence, the bull market is broadening in its themes, but its legs are still firmly anchored to a handful of giants.

The Small-Cap Paradox: Record Strength Meets Structural Skepticism

The recent surge in small-cap stocks presents a classic market paradox. On one hand, the Russell 2000 has hit fresh record highs and posted its longest streak of consecutive outperformance versus the S&P 500 since 2008. This rally, which has seen the index up nearly 8% year-to-date, is being attributed to a powerful macroeconomic catalyst: the U.S. economy is now projected to grow at a stunning 5.3% annualized rate in the final quarter of 2025. Analysts see this reacceleration as fresh fuel for small- and mid-cap earnings, prompting upward revisions to profit estimates.

Yet this fundamental optimism clashes with a deep-seated structural skepticism. The early-year strength is widely viewed as a technical trade rather than a fundamental shift. According to Wolfe Research, the move follows years of underperformance and has been driven by seasonal flows, year-end asset reallocation, and a January reversal following tax-loss selling. The firm's analysts are particularly skeptical that the hopes for easier monetary policy and fiscal stimulus will translate into the sustained earnings momentum needed to justify a broad re-rating of smaller companies.

The bottom line is that the current small-cap rally fits a familiar pattern. It is a cyclical bounce, not a structural change in market leadership. Wolfe Research frames it as a trade that is likely to fade as tax-related flows dissipate and as earnings season highlights that profit growth and revisions continue to favor large-cap companies, particularly in Technology and Communication Services. For now, the record highs are a story of technicals and a strong GDP print, but the structural headwinds-wide valuation gaps, a history of weak earnings quality, and the enduring dominance of large-cap tech-suggest the rally lacks the durable foundation to challenge the market's concentrated leadership.

Financial Impact and Scenarios: The AI Engine vs. The Small-Cap Dream

The divergent financial trajectories for large-cap tech and small caps set up a clear binary scenario for 2026. The AI engine is expected to keep running, but its fuel is being drawn from a concentrated pool of giants. Goldman Sachs Research expects AI investment to increase this year even as the growth in capex decelerates. This dynamic reinforces the dominance of large-cap tech, where the productivity boost from AI adoption is most immediately visible and monetizable. The firm's base case is for steady earnings growth to drive the market, with the S&P 500 projected to deliver a 12% total return in 2026, down from 18% last year. This moderation is a direct function of the market's elevated starting point, with the S&P 500 trading at a forward P/E of 22x. In this scenario, the bull market continues, but its legs are still firmly anchored to the top tech stocks, which accounted for 53% of the index's return in 2025.

For small caps, the path to a sustained re-rating is far more conditional. Wolfe Research frames the current rally as a technical trade, not a fundamental shift. The firm's analysts are skeptical that hopes for easier policy and stimulus will translate into the sustained earnings momentum needed to justify a broad re-rating. They argue that a durable re-rating of small caps requires the dominance of large-cap technology to meaningfully fade. That condition is not currently forecast. Instead, Wolfe sees earnings revisions continuing to favor large-cap companies, particularly in Technology and Communication Services. The valuation gap, they note, reflects differences in sector mix, growth visibility, and overall quality. Without a structural shift in leadership, the current strength is likely to fade as tax-related flows dissipate and earnings season highlights the quality differential.

The broader bull market forecast to continue with returns moderating to 11% globally, down from 18% in 2025, underscores this tension. It is a story of two engines. The global economy is poised for continued expansion, supporting a broadening market. Yet the fuel for that expansion is asymmetric. The AI-driven productivity gains are concentrated in a few large firms, while the broader market's re-rating is constrained by record concentration and wide valuation gaps. For the small-cap dream to become real, the dominance of the tech engine must first weaken. Until then, the rally is a cyclical bounce, not a structural change in market leadership.

Catalysts and Risks: Testing the Thesis in 2026

The thesis for a sustained small-cap re-rating now faces a series of forward-looking tests. The rally's durability hinges on a confluence of macro catalysts and a fundamental divergence in corporate performance that is not currently in the consensus view.

The first and most immediate benchmark is the performance of the S&P 500. Goldman Sachs' base case calls for the index to deliver a 12% total return in 2026, a significant moderation from last year's 18% gain. A material miss on this forecast would be a major negative signal for the entire market. It would pressure valuations across the board, likely reinforcing the market's dependence on its top tech stocks and undermining any narrative of broadening strength. For small caps, such a scenario would be particularly damaging, as it would confirm that the macro tailwinds are not translating into the broad-based earnings expansion the rally requires.

The core structural test is a sustained divergence in earnings growth. Wolfe Research argues that a durable re-rating of small caps requires the dominance of large-cap technology to meaningfully fade. That condition is not the consensus view. Analysts see earnings revisions ultimately favoring large caps over small, particularly in Technology and Communication Services. For the small-cap rally to evolve from a technical trade into a fundamental trend, investors need to see a clear and persistent acceleration in profit growth and upward revisions for smaller companies that can close the wide valuation gap. The current setup, where large caps are the primary beneficiaries of AI productivity gains, makes this a high bar.

Finally, the resolution of key macro catalysts will alter the backdrop. The pace of Federal Reserve easing and the resolution of tariff policy are critical. Goldman Sachs expects healthy economic growth and Fed easing to support the market, but the specifics matter. Faster-than-expected rate cuts could boost risk appetite and benefit smaller, more cyclical firms. Conversely, a prolonged period of high rates would pressure their higher borrowing costs. Similarly, the outcome of the Supreme Court ruling on tariffs and the potential for a credit-card interest rate cap could have sector-specific impacts. While Wolfe Research notes that leading indicators like ISM manufacturing remain weak, the small-cap rally is predicated on a stronger, more balanced economic cycle. Any setback to that growth narrative would quickly deflate the trade.

The bottom line is that the small-cap move is a high-stakes bet on a specific combination of macro policy and corporate fundamentals. It is a trade that will be tested in the coming weeks as tax-loss selling flows fade and earnings season begins. For now, the evidence suggests the odds favor a fade, but the catalysts remain in play.