Relative Comparisons

Quick Answer

A fund's performance only means something when measured against a benchmark that matches its investment style and asset class, such as the S&P 500 for large-cap equity or the Russell 2000 for small-cap equity. Manager tenure also matters: a short tenure means historical returns say less about what to expect from the current manager.

The final piece of evaluating pooled investments is measuring how they actually perform. Individual fund returns mean little without context; advisers must compare performance against appropriate benchmarks and consider the manager behind the results.


What Is a Benchmark?

A benchmark is a standard index used to evaluate a fund's performance. The key principle: the benchmark must match the fund's investment style and asset class.

Fund TypeAppropriate Benchmark
Large-cap U.S. equityS&P 500
Small-cap U.S. equityRussell 2000
Technology-focused equityNasdaq Composite
Blue-chip / price-weightedDow Jones Industrial Average (DJIA)
U.S. investment-grade bondsBloomberg U.S. Aggregate Bond Index
International equityMSCI EAFE (Europe, Australasia, and Far East)
  • A fund that outperforms a properly matched benchmark, after accounting for risk, fees, and the measurement period, may have added value through active management
  • A fund that consistently underperforms its benchmark may not justify its management fees
  • Comparing a bond fund to the S&P 500 (or an equity fund to a bond index) is meaningless; the benchmark must reflect what the fund actually invests in

Exam Tip: Gotchas

  • Always match the benchmark to the fund's investment objective. A small-cap fund should be measured against the Russell 2000, not the S&P 500. Mismatched benchmarks make performance look artificially good or bad.

What Are the Key Securities Indexes?

  • S&P 500: Tracks 500 large-cap U.S. stocks; market-capitalization weighted; the most widely used benchmark for U.S. equity funds
  • Dow Jones Industrial Average (DJIA): Tracks 30 large-cap blue-chip stocks; price-weighted (higher-priced stocks have more influence); less representative than the S&P 500 but widely quoted
  • Nasdaq Composite: Tracks all stocks listed on the Nasdaq exchange; heavily weighted toward technology companies
  • Russell 2000: Tracks 2,000 small-cap U.S. stocks; the standard benchmark for small-cap funds
  • Bloomberg U.S. Aggregate Bond Index: Tracks the U.S. investment-grade, fixed-rate bond market including Treasuries, corporates, mortgage-backed securities, and asset-backed securities; the standard benchmark for bond funds

Exam Tip: Gotchas

  • The DJIA is price-weighted, not market-cap-weighted like the S&P 500. This is a frequently tested distinction.
  • The Bloomberg U.S. Aggregate Bond Index covers investment-grade bonds only. It does not include high-yield (junk) bonds.

Why Does Manager Tenure Matter?

Manager tenure refers to how long the current portfolio manager has been running the fund:

  • Longer tenure: Past performance is more attributable to the current manager's decisions and investment approach
  • Shorter tenure: Past performance may reflect a previous manager's strategy; less relevant for evaluating the fund's current direction
  • A recent manager change is a red flag when relying on historical returns to make investment decisions

Think of it this way: If a fund has a strong 10-year track record but the current manager has only been in place for 6 months, those returns tell you very little about what to expect going forward.

Exam Tip: Gotchas

  • Manager tenure affects how much weight to give historical performance. A new manager means past returns are less predictive of future results.

What Else Breaks a Track Record?

A manager change is one way a past return stops describing the fund you are buying. Two others do the same thing, and the exam treats them as distinct.

A change in investment policy. A fund's stated objective, strategy, or policies can change. When that happens the pre-change performance was produced by a different strategy, so the record before and after the change is not comparable. It can also make a fund that was suitable for a client unsuitable, because the client was matched to the old mandate.

Style drift. A fund's stated style is the approach it says it follows: growth or value, large-cap or small-cap, active or passive, domestic or international. Style drift is when the fund's actual holdings move away from that stated style. Two consequences:

  • It defeats the comparison, because the benchmark and the peer group were chosen to match the stated style, not the holdings
  • It can unbalance a client's allocation, because the adviser sized the position around the style the fund advertised. A small-cap sleeve that drifts large-cap quietly leaves the client underweight small-cap

Think of it this way: a policy change is the fund announcing it is now a different fund. Style drift is the fund becoming a different fund without saying so.

Exam Tip: Gotchas

  • A policy change is disclosed; style drift is something you have to detect. Both break comparability of the track record, and both can turn a suitable holding into an unsuitable one.

How Do You Put It All Together?

When evaluating a pooled investment for a client, advisers consider:

  1. Performance vs. benchmark: Is the fund beating or trailing its appropriate index?
  2. Consistency: Are returns stable or volatile relative to the benchmark?
  3. Manager tenure: Has the person responsible for the results been there long enough for the track record to be meaningful?
  4. Policy changes and style drift: Is the fund still running the strategy that produced the record, and still holding what its stated style says it holds?
  5. Fees: Is the performance sufficient to justify the fund's expense ratio and any sales loads?

What Should You Check on Exam Day?

  • Match the benchmark to the fund's asset class and style: S&P 500 (large-cap), Russell 2000 (small-cap), Nasdaq Composite (tech-heavy), DJIA (blue-chip), Bloomberg U.S. Aggregate Bond Index (investment-grade bonds)
  • The DJIA is price-weighted; the S&P 500 is market-cap-weighted
  • The Bloomberg U.S. Aggregate Bond Index covers investment-grade bonds only, not high-yield
  • Short manager tenure makes historical fund performance less predictive of future results
  • A change in the fund's stated objective, strategy, or policy breaks comparability of the track record and can make a suitable fund unsuitable; style drift does the same thing silently