Quick Answer
Judging a fund fairly means comparing it to a benchmark that matches its asset class and style, and checking whether the manager who produced the track record is still running the fund. A policy change or style drift also breaks the link between past performance and future expectations.
These are qualitative checks, not formulas, but the exam tests them just as heavily: a beautiful 10-year return chart is meaningless if the wrong benchmark, a departed manager, or a changed strategy is behind it.
What Makes a Benchmark Appropriate?
A benchmark is a standard against which fund performance is measured. The appropriate benchmark must match the fund's investment style and asset class.
- Funds should be compared to an appropriate benchmark index matching their investment style
- Large-cap U.S. equity fund vs. S&P 500
- International equity fund vs. MSCI EAFE
- Bond fund vs. Bloomberg Aggregate Bond Index
- Benchmark comparison reveals whether the manager adds value (alpha) or underperforms
Exam Tip: Gotchas
Use the right benchmark. Comparing a bond fund to the S&P 500 is inappropriate. The benchmark must match the fund's asset class and investment style.
Why Does Manager Tenure Matter?
- Length of time the current portfolio manager has managed the fund
- Short tenure may mean past performance is not attributable to the current manager
- Manager changes can signal shifts in investment strategy or approach
Think of it this way: Past performance belongs to the person who generated it. A fund's 10-year track record is irrelevant if the manager who achieved it left two years ago.
Exam Tip: Gotchas
Past performance of a mutual fund may be irrelevant if the portfolio manager recently changed. Always check manager tenure before relying on historical returns.
How Does a Change in Investment Policy Affect Comparisons?
- A fund may change its investment objective or strategy (requires shareholder vote for fundamental changes)
- Past performance data becomes less relevant after a significant policy change
- Investors should review the prospectus for any recent changes
What Is Investment Style, and What Is Style Drift?
- Morningstar-style boxes classify funds by: size (large/mid/small) and style (value/blend/growth)
- Style drift - when a manager deviates from the stated investment style
- Active vs. passive (index) management affects fee levels and expected tracking
Exam Tip: Gotchas
A change in investment policy makes prior performance data unreliable. Similarly, style drift is a red flag: if a fund's holdings no longer match its stated strategy, the adviser should investigate.
Which Securities Indexes Are Used as Benchmarks?
- S&P 500 - 500 large-cap U.S. stocks (market-cap weighted)
- Dow Jones Industrial Average (DJIA) - 30 blue-chip stocks (price weighted)
- Nasdaq Composite - all Nasdaq-listed stocks (tech heavy)
- Russell 2000 - small-cap U.S. stocks
- Wilshire 5000 - broadest U.S. equity index (total market)
Indexes are unmanaged and do not incur fees; comparing a fund's returns to an index without adjusting for fees is misleading.
What Should You Check on Exam Day?
- Match the benchmark to the fund's asset class and investment style; a mismatched benchmark (bond fund vs. S&P 500) makes the comparison meaningless.
- Check manager tenure before trusting a historical track record; a short-tenured manager cannot claim credit for older returns.
- A significant change in investment policy or noticeable style drift both make past performance less reliable going forward.
- Know the standard index roster: S&P 500, DJIA, Nasdaq Composite, Russell 2000, and Wilshire 5000, and remember indexes carry no fees of their own.