John Hancock: When Value Starts Looking More Like Growth
Growth vs. Value: Why Traditional Investment Categories Are Changing
The 2026 Russell index updates reveal an important shift in how stocks are classified, raising new questions about portfolio diversification and investment strategy.
For decades, investors have relied on growth and value investing as two distinct approaches to building diversified portfolios. Growth stocks have traditionally represented companies with strong earnings potential, while value stocks have focused on businesses trading at relatively attractive valuations.
However, recent changes in the U.S. stock market suggest that the distinction between these investment styles is becoming less defined.
The 2026 Russell index reconstitution highlights how some of the nation’s largest technology companies are increasingly influencing both growth and value benchmarks, creating potential overlap in portfolios that investors may believe are diversified.
Technology’s Growing Influence on Value Investing
One of the most notable developments in the 2026 Russell index updates is the increasing presence of major technology companies within traditional value benchmarks.
According to FTSE Russell, the combined market capitalization of the companies commonly referred to as the “Magnificent Seven” increased approximately 49% over the previous year, reaching $22.4 trillion.
These companies—Apple, Microsoft, Nvidia, Amazon, Alphabet, Meta, and Tesla—have historically been associated with growth investing.
Yet changing valuations and index methodologies have resulted in greater representation of these businesses within value-oriented indexes.
By June 2026, Magnificent Seven stocks represented approximately 17.3% of the Russell 1000 Value Index, compared with no exposure a year earlier, according to research cited by John Hancock Investments.
Technology’s overall weighting within the value index also increased, while exposure to traditionally value-oriented industries shifted.
These developments demonstrate how investment benchmarks can evolve as market conditions, company fundamentals, and valuations change.
Why Portfolio Overlap Matters
Diversification remains one of the fundamental principles of investment management. By spreading investments across different companies, sectors, and investment styles, investors seek to reduce dependence on any single area of the market.
However, owning separate growth and value funds does not necessarily guarantee meaningful diversification.
When multiple funds hold many of the same large companies, investors may have greater exposure to certain stocks or sectors than they realize.
For example, an investor holding both a large-cap growth fund and a large-cap value fund could have significant exposure to the same technology companies through each investment.
While this overlap is not necessarily negative, it can increase concentration risk and reduce the diversification benefits originally intended.
Understanding a fund’s underlying holdings is therefore becoming increasingly important.
The Importance of Looking Beyond Investment Labels
Investment categories provide a useful starting point for evaluating portfolio allocations, but they do not always tell the complete story.
A fund categorized as value may contain companies traditionally associated with growth. Likewise, growth-oriented portfolios may include businesses with characteristics commonly associated with value investing.
Rather than relying exclusively on fund classifications, investors and financial professionals may benefit from reviewing several factors:
- Sector exposure: Understanding how much of a portfolio is invested in technology, financials, industrials, and other industries.
- Individual holdings: Identifying companies that appear across multiple funds.
- Portfolio concentration: Evaluating whether a relatively small number of stocks account for a substantial portion of total investments.
- Investment objectives: Confirming that each allocation continues to support the portfolio’s long-term goals.
- Risk management: Monitoring how changing market conditions may influence portfolio performance.
These considerations can provide a more complete picture of how investments work together.
Active Management and Portfolio Strategy
As market dynamics evolve, active portfolio management may offer additional flexibility in evaluating investment opportunities and managing risk.
Unlike strategies designed to replicate an index, active managers can assess individual companies based on financial fundamentals, valuations, growth prospects, and their potential contribution to a portfolio.
This flexibility may help managers respond to changing market conditions and address unintended concentrations or overlapping exposures.
However, active management also involves costs and risks, and it does not guarantee better performance than passive investment strategies.
Regardless of the approach, regularly reviewing portfolio composition can help investors determine whether their investments remain aligned with their financial objectives.
A Changing Market Calls for Greater Awareness
The 2026 Russell index changes reinforce an important lesson: investment categories are not fixed, and the composition of widely followed benchmarks can change significantly over time.
As technology companies continue to influence multiple market segments, investors may need to pay closer attention to what their portfolios actually own rather than relying solely on traditional growth and value classifications.
A well-constructed investment strategy considers more than fund names or investment styles. It evaluates underlying holdings, diversification, risk exposure, and long-term financial goals.
The takeaway: Understanding what is inside a portfolio is just as important as understanding the investment strategy printed on its label.
For investors and financial professionals, ongoing portfolio reviews can help identify potential concentration risks and support more informed investment decisions.