After another strong year for markets in 2025, many investors are feeling confident—perhaps a little too confident. While strong returns are welcome, successful investing is never about looking backward. It’s about positioning wisely for what comes next.
Listed below are several common investment mistakes investors should avoid in 2026. These insights offer a helpful investment roadmap for 2026.
- Assuming All Stocks Are Expensive
One of the biggest misconceptions right now is believing that every part of the stock market is overpriced. While large U.S. growth stocks—especially technology and AI-related companies—have dominated returns are richly priced, while other areas have lagged.
Small-cap and value-oriented stocks remain relatively attractively priced. For investors who already own broad market funds, selectively adding modest exposure to these segments may improve diversification without taking excessive risk.
- Ignoring Non-U.S. Stocks
In 2025, international stocks surprised many investors by outperforming U.S. markets. Even after that strong run, non-U.S. equities still appear inexpensive relative to U.S. stocks.
Globally, roughly one-third of the world’s market capitalization lies outside the United States, yet many investors hold far less. Increasing international exposure can provide diversification benefits, broader sector exposure, and potential tailwinds if the U.S. dollar weakens.
- Not Reducing Risk Near Retirement
For investors approaching retirement, failing to reduce risk can be costly. After a decade of exceptional equity returns, many retirees are understandably reluctant to shift away from stocks.
However, when portfolio withdrawals begin, market volatility matters more. Holding several years of expected retirement spending in high-quality bonds and cash can help reduce sequence-of-returns risk and provide stability when markets inevitably fluctuate.
- Overthinking the Federal Reserve When Investing in Bonds
Trying to predict interest rates is often a losing game. Rather than focusing on what the Federal Reserve might do next, bond portfolios should be aligned with spending timelines.
Short-term needs are best met with cash, intermediate needs with short- or intermediate-term high-quality bonds, and long-term goals with equities. Structuring fixed income around time horizons—not forecasts—creates a more durable strategy.
- Expecting the Past Decade’s Returns to Continue
U.S. stocks delivered extraordinary results over the past 10 years, averaging roughly 15% annually. Assuming those returns will repeat can lead to unrealistic savings and retirement projections.
A more prudent approach is to use long-term historical averages—generally below 10% for equities—and current bond yields as reasonable expectations going forward.
Strong markets can breed complacency. Avoiding these common mistakes can help keep your investment plan grounded, diversified, and aligned with your long-term goals—no matter what 2026 brings.
Your Financial Navigator,
Johannes