11.2 Factors That Affect Mutual Fund Performance

The Mandate Comes First

The largest determinant of a scheme's return in any period is what it is required to hold. A small cap fund and a liquid fund will differ by tens of percentage points in a strong equity year, and no amount of manager skill in the liquid fund closes that gap.

This has a direct consequence for how performance should be judged: comparing schemes across categories is not comparison, it is category selection. A small cap fund that returned 34% has not necessarily outperformed a large cap fund that returned 21%. The relevant question is how each did against its own category and benchmark.

Factors Within the Manager's Control

Security selection

For an equity scheme, which companies are held and in what weights. The measurable component of skill, and the reason active management exists.

Sector and style positioning

Overweighting or underweighting sectors relative to the benchmark, and tilting towards growth, value or quality characteristics. A value-oriented manager underperforms during a growth-led rally and outperforms when the cycle turns — a pattern that reflects style rather than skill, and which is why judging any manager over a period shorter than a full cycle is unreliable.

Duration positioning, for debt schemes

The single largest driver of debt scheme returns. Lengthening duration ahead of a rate cut produces strong returns; being long duration into a rate rise produces losses. Duration is disclosed monthly in the fact sheet.

Credit selection, for debt schemes

Holding lower-rated paper raises yield and raises the risk of downgrade and default. A debt scheme's outperformance may reflect superior credit research, or simply that no holding has yet defaulted. The rating profile in the fact sheet distinguishes the two possibilities better than the return figure does.

Cash levels

Schemes hold cash for redemptions and for opportunities. In a rising market, cash lags — cash drag. In a falling market it cushions. A persistently high cash level is a form of implicit market timing, and one the investor did not ask for.

Factors Outside the Manager's Control

• Market direction. In a broad decline a well-managed equity fund still falls.
• Interest-rate cycle, driven by monetary policy.
• Flows. Large inflows must be deployed, potentially at unattractive prices; large outflows force selling. Both are imposed by other investors' behaviour.
• Scheme size. A very large small cap scheme faces genuine capacity constraints, since building or exiting a meaningful position in a less liquid stock moves its price.
• Regulatory change, including changes to categorisation rules or investment limits.

Cost: The Only Certain Factor

Expenses reduce returns every single year, with certainty. Skill may or may not appear; cost always does.

Illustration. Two schemes with identical gross returns of 12% per annum on INR 10,00,000 over 20 years:

Expense ratio 0.60%  ->  net 11.40%  ->  approx INR 86.6 lakh
Expense ratio 1.80%  ->  net 10.20%  ->  approx INR 69.8 lakh

A difference of 1.2 percentage points a year compounds into a gap of roughly INR 17 lakh on a INR 10 lakh investment over twenty years. Nothing about the portfolio differed; only the charge did.

This is the analytical basis for the direct plan comparison and for the case for passive schemes in efficient segments of the market.

Turnover

Portfolio turnover measures how much of the portfolio is traded over a year. A turnover of 0.4 implies roughly 40% of holdings changed; a turnover above 2.0 indicates very high activity.

High turnover carries costs borne by the scheme:

• Brokerage, within the caps of 6 basis points for cash market and 2 for derivative transactions
• Impact cost — the price movement caused by the fund's own trading, which is far larger than brokerage for less liquid stocks
• Statutory levies including STT and stamp duty, now charged outside the Base Expense Ratio

Turnover is not itself bad; it is a cost that must be earned back. The question to ask of a high-turnover scheme is whether its returns, net of everything, exceed those of a comparable lower-turnover scheme.

Putting It Together

The practical conclusion the syllabus supports: choose the category correctly, then within it prefer schemes where the certain factors — cost and turnover — are favourable, and treat past outperformance as evidence to be weighed rather than a property that persists.