5 Mistakes to Avoid With Your Investment Portfolio in 2026

Morningstar
MorningstarFeb 7, 2026

Why It Matters

Ignoring undervalued segments, global diversification, and realistic return assumptions can erode long‑term wealth, especially for those approaching retirement, making disciplined rebalancing essential for portfolio resilience.

Key Takeaways

  • Avoid assuming all stocks are overvalued; seek undervalued segments
  • Add small‑cap and mid‑cap value exposure for diversification
  • Increase non‑US equity allocation to capture cheaper markets
  • De‑risk near‑retirement portfolios using cash and high‑quality bonds
  • Base return expectations on long‑term averages, not recent peaks

Summary

The Morningstar video, hosted by Margaret Jazz and featuring personal‑finance director Christine Benz, outlines five common portfolio mistakes investors should dodge in 2026. The discussion centers on why past performance should not dictate future allocations and how disciplined diversification can protect against market concentration.

Key insights include: don’t write off equities because the market feels pricey; instead, tilt modestly toward small‑cap and mid‑cap value stocks that remain under‑appreciated. Non‑U.S. equities still trade at discounts relative to U.S. benchmarks, offering sector breadth in financials, materials and industrials. Near‑retirement investors should de‑risk by allocating 7‑10 years of anticipated spending to cash and high‑quality bonds, preferably within tax‑advantaged accounts or via new contributions. Finally, avoid over‑reacting to Fed moves and set realistic return expectations—sub‑10% equity returns and current 4% Treasury yields are more prudent baselines.

Benz emphasizes, “Don’t assume all stocks are expensive,” and recommends a small complement of small‑cap/value index or active funds. She notes that “most U.S. investors hold less than a third of their equity abroad,” and urges a “bucket approach” for retirees, keeping short‑term cash, medium‑term bonds, and long‑term equities aligned with spending horizons. She also cautions against using the decade‑long 15% equity return as a planning metric.

The implications are clear: investors who rebalance toward undervalued segments, broaden global exposure, and temper expectations will likely achieve smoother returns and lower drawdowns as markets evolve. By aligning asset allocation with personal timelines rather than macro forecasts, portfolios become more resilient to volatility and policy shifts.

Original Description

#InvestingMistakes #InvestingPortfolio #BondInvesting2026
Sidestep these pitfalls to set yourself up for success.
00:00:00 Introduction
00:00:20 Why It’s Not Too Late to Invest in Stocks in 2026
00:02:05 Why Investors Should Increase Their Non-US Stock Exposure in 2026
00:03:57 How Investors Approaching Retirement Can Start Derisking Their Portfolios
00:06:06 Why Bond Investors Should Focus on Their Spending Horizons Instead of the Fed
00:08:02 Why Investors Shouldn’t Assume Past Returns Will Be Repeatable
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