The stock market appears poised to achieve double-digit gains for the sixth time in seven years. This impressive performance streak, broken only by 2022’s inflation-driven decline, has strengthened the financial position of numerous investors.

There’s a common observation that anticipating something often exceeds the experience itself. While investors naturally welcome robust returns that benefit their portfolios and financial objectives, anxiety tends to emerge once these gains materialize – particularly when major indices approach record highs and valuations near levels last seen during the dot-com era.

Throughout 2025, several pivotal shifts occurred across issues that have challenged investors in recent years. Inflation, though still impacting households, has settled near 3%. Trade tariffs, despite reaching historically elevated levels and driving market fluctuations in 2025, haven’t triggered the widespread economic disruption that many anticipated. The Federal Reserve has maintained its rate-cutting trajectory while the economy has expanded at a solid pace.

Taking a broader view, the most valuable insight heading into the new year may be that investors’ greatest fears rarely come to fruition. The recession that many predicted since 2022 never occurred. Historical patterns reveal that for every true market disruption – such as the 2020 pandemic or 2008 financial crisis – there are numerous feared “black swans” that never emerge. The real challenge for long-term investors lies not in forecasting which events will prove significant, but in sustaining perspective and discipline through varying market conditions.

Looking toward 2026, the investment environment offers both prospects and obstacles. Expected headline topics include the approaching midterm election, leadership transition at the Federal Reserve, AI’s trajectory, mounting loan concerns, the U.S. dollar’s direction, and more. The critical factor isn’t whether investors can anticipate every development, but whether their portfolio is structured to navigate uncertainty while capturing long-term expansion. Seven essential themes can help frame thinking about the year ahead.

Multiple asset classes are strengthening portfolios heading into 2026

Significantly for investors, various asset classes are enhancing portfolio returns as 2026 approaches. This marks a departure from much of the previous decade when U.S. equities surpassed global markets. During 2025, international equities have exceeded U.S. market performance, with developed market stocks (MSCI EAFE) and emerging market stocks (MSCI EM) each advancing approximately 30% in U.S. dollar terms. Two primary factors have driven this: strengthening growth projections in numerous economies and dollar weakness, which enhances returns for U.S.-based investors.

Fixed income is also fulfilling a crucial stabilizing function in portfolios. The Bloomberg U.S. Aggregate Bond Index has appreciated 7% year-to-date as the Federal Reserve continues reducing interest rates and inflation moderates. Higher-quality bonds have performed their intended role by generating income and counterbalancing equity volatility during uncertain market periods.

Looking ahead, this highlights the value of balance and diversification. While headlines may tempt investors toward abrupt portfolio adjustments, those who adhere to their financial plans are positioned to benefit.

Stock market valuations are nearing dot-com era heights

Strong returns over recent years have driven stock market valuations progressively higher. The S&P 500 currently reflects a price-to-earnings ratio of 22.5x, approaching the all-time peak of 24.5x reached during the dot-com bubble. This indicates investors are paying more for each dollar of anticipated future earnings compared to recent years.

Valuation concerns typically arise when they diverge from underlying fundamentals. The dot-com bubble, for instance, saw unprecedented valuation levels that far exceeded revenues and earnings, as investors rewarded any company associated with the “new economy.” While today’s valuations are elevated due to AI enthusiasm and sustained economic expansion, corporate fundamentals remain robust. Earnings have increased at a healthy rate, with expectations for continued growth according to consensus estimates data by LSEG.

Understanding what elevated valuations indicate – and what they don’t – is essential. Valuations don’t necessarily forecast immediate market corrections since markets can sustain elevated levels for prolonged periods. While some express concern about an “AI bubble,” not all bubbles burst dramatically. Some deflate gradually as fundamentals align with expectations. This distinguishes the dot-com collapse of the late 1990s and early 2000s from cloud computing’s growth over the past decade.

However, elevated valuations do suggest potentially more moderate future returns, as markets already reflect anticipated growth. This can also heighten market sensitivity to disappointments. Investors describe such markets as “priced for perfection,” where even minor shortfalls in earnings or economic data can trigger volatility. This underscores the growing importance of selectivity and maintaining balance across market segments – including asset classes, sectors, sizes, styles, and more.

AI is fueling economic expansion and investment returns

No trend has captured investor focus quite like AI. Capital expenditures on AI infrastructure reached remarkable levels in 2025, with total investment easily surpassing trillions of dollars. This encompasses constructing new data centers, acquiring equipment such as GPUs, and recruiting AI researchers.

Some investments involve seemingly circular arrangements. For instance, Nvidia invested up to $100 billion in OpenAI, which subsequently purchases millions of Nvidia’s chips. These interconnected relationships have sparked questions about whether the AI ecosystem can maintain momentum if enthusiasm diminishes.

These patterns reflect that AI infrastructure requires resources few companies can independently afford. The central question is whether the technology will ultimately deliver sufficient value to warrant the massive expenditure. Presently, AI investment contributes substantially to the overall economy.

Surveys indicate businesses are increasingly integrating AI into operations. According to the Census Bureau’s Business Trend and Outlook Survey, the proportion of businesses reporting AI use more than doubled from 4% in September 2023 to 10% in September 2025. The share anticipating AI adoption over the next six months rose similarly, from 6% to 14% during this period.¹ While these figures have increased, substantial growth potential remains.

For investors, AI represents both opportunity and risk. The Magnificent 7 technology companies continue driving market gains, propelled by infrastructure investments and expanding AI tool adoption. However, this concentration creates exposure. These companies now comprise roughly one-third of the S&P 500, meaning most investors hold significant positions, whether consciously or not.

The question isn’t whether AI will reshape the economy – that’s evident. Rather, it’s whether current valuations appropriately reflect realistic timelines for returns on these substantial investments. Historical precedents from the 1860s railroad boom to the 1990s dot-com era demonstrate that transformative technologies often follow similar trajectories: initial doubt, rapid acceptance, market excitement, and eventual integration into the broader economy.

The crucial insight is that markets frequently overestimate the pace at which profits materialize. Most investors likely hold AI exposure either directly or through major indices, making awareness of this concentration essential, along with maintaining an appropriate asset allocation aligned with long-term objectives for the coming year.

Economic expansion is moderating but staying positive

Economic growth has decelerated but remains more resilient than many anticipated. U.S. GDP experienced a modest negative movement in 2025’s first quarter, but quickly recovered as tariff uncertainty diminished. The second quarter’s 3.8% growth rate not only surpassed expectations but represents one of the strongest quarterly performances in years.

Regarding global GDP, the International Monetary Fund projects growth could ease slightly from 3.2% in 2024 to 3.1% in 2026. Advanced economies are forecast to expand around 1.5%, while emerging markets are expected to sustain growth above 4%.²

Though positive overall, economic expansion has been inconsistent across income groups and sectors. This phenomenon is often characterized as a “two-speed” or “K-shaped” economy, where some experience prosperity while others face challenges.

In the current economy, this divergence primarily stems from technology trends, as those positioned to capitalize on AI growth may encounter better employment opportunities than those in conventional industries. However, AI isn’t the sole factor, as consumer debt, auto loan delinquencies, and other financial pressures can influence whether individuals benefit from economic expansion.

Concerning long-term economic growth, perhaps the most critical question is whether productivity will increase due to recent technological progress. Productivity measures output – in quality or quantity – that a worker can generate in a given timeframe. Historically, improved equipment, training, and education have driven enhanced productivity, which fuels genuine economic growth.

The accompanying chart demonstrates that productivity growth averaged merely 1.2% annually during the 2010s. The promise of AI and emerging technologies is enhanced worker output. However, this typically takes longer than anticipated and won’t necessarily benefit everyone uniformly. For investors, the prospect of improved productivity means profit margins can expand, supporting the broader economy and investment portfolios.

Tariff effects remain ambiguous

While tariffs drove stock market volatility throughout 2025, their economic consequences have been varied. One ongoing puzzle is how minimal immediate impact tariffs have had on inflation and growth. Despite tariff costs increasing tenfold compared to previous years’ average levels, measures such as the Consumer Price Index have risen only marginally.

Several factors may explain why tariffs haven’t produced their expected effects. First, numerous announced tariffs were rapidly paused or reduced. Second, many companies absorbed initial tariff costs by maintaining stable prices and importing goods ahead of tariff implementations. Finally, robust consumer spending, fiscal stimulus, and vigorous growth in AI-related sectors helped counterbalance any negative impact on overall expansion. It’s also noteworthy that the Supreme Court may rule in 2026 on the legality of the economic rationale employed for these tariffs.

For long-term investors, these recent developments, combined with the initial round of trade negotiations in 2018, underscore that tariffs are part of the government’s strategic toolkit. Rather than treating these tariffs as a fundamental shift in global order, they instead represent instruments for the administration to advance broader policy objectives. While tariffs won’t disappear, their influence on daily market activity may diminish.

Midterm election and government debt will dominate 2026 discussions

Beyond trade policy changes, 2025 also featured a historic 43-day government shutdown and persistent concerns regarding budget deficit size. Simultaneously, the recently enacted One Big Beautiful Bill Act (OBBBA) tax legislation has provided greater clarity for investors and taxpayers.

The new year will commence with additional Washington uncertainty as the short-term funding bill expires at January’s end. This suggests another potential negotiation round that could produce another government shutdown. Subsequently, some investors anticipate households and businesses will benefit from increased tax refunds due to OBBBA provisions such as full expensing of research and development.

Looking further ahead, investors will likely focus on the midterm election and its implications for tariffs, regulation, government spending, and more. The accompanying chart illustrates that midterm elections have historically yielded healthy returns, averaging 8.6% since 1933, even if slightly lower than non-election and presidential election years.

Nevertheless, the foremost concern for many investors is the continuously growing national debt. The reality is that the historically elevated national debt, hovering around 120% of GDP for total debt, or exceeding $36 trillion, is unlikely to be resolved soon. In fact, estimates suggest the OBBBA could increase national debt by over $4 trillion in the next decade. Currently, the national debt exceeds $106,000 per American.

For long-term investors, recognizing what we can and cannot control is important. The national debt has presented challenges for decades, yet making investment decisions based on these concerns would have resulted in suboptimal portfolio positioning. While U.S. federal debt sustainability may have implications for economic growth and interest rates, history demonstrates this shouldn’t be the primary portfolio driver.

Instead, what investors can control in the near term is understanding key tax legislation changes and their impact on long-term planning. These include the fact that lower tax rates from the Tax Cuts and Jobs Act are now permanent, estate tax exemption levels will remain elevated, SALT deduction caps have increased, and numerous other provisions. This is an ideal time to review tax strategies to ensure full advantage of these new rules.

The Federal Reserve will continue supporting the economy

The Fed resumed rate cuts in September after an earlier pause. Entering 2026, monetary policy’s trajectory may become less predictable. This reflects that runaway inflation risk may no longer be the primary concern as a weakening job market has gained prominence. This necessitates policy rate adjustments rather than dramatic shifts like those witnessed in 2022.

An additional complication is that Fed Chair Jerome Powell’s term concludes on May 15, 2026, creating an opportunity for new Fed leadership. The White House is expected to appoint a successor who may prefer additional rate cuts to support the administration’s economic agenda of lower interest rates.

The accompanying chart demonstrates that the economy has performed well under Fed Chairs appointed by both parties. It’s important to recognize that the Fed only controls the “short end” of the yield curve – interest rates closely tied to the federal funds rate. Long-term interest rates depend on numerous other factors, including economic growth, inflation, and productivity. Rather than tracking the Fed’s every action and analyzing every statement, investors should continue focusing on these longer-term trends to understand the impact on interest rates and bonds.

Sustaining perspective in 2026

Entering 2026, investors confront a familiar challenge: reconciling concerns with the reality that markets have consistently rewarded patient, disciplined investors over time. The list of worries persists, yet history indicates that for every crisis disrupting markets, many more feared events have failed to occur. What distinguishes successful long-term investors isn’t predicting which concerns matter most, but maintaining balance throughout all market cycle phases.

The bottom line? Markets have generated robust returns, but elevated valuations and moderating global growth suggest tempering expectations for 2026. Rather than attempting to time the market based on any single concern, investors should prioritize maintaining balanced portfolios positioned for multiple scenarios.

References

1. https://www.census.gov/hfp/btos/data_downloads

2. https://www.imf.org/en/publications/weo/issues/2025/10/14/world-economic-outlook-october-2025