Index Funds vs Active Funds: What 10 Years of Indian Data Actually Shows

Should you pay a fund manager to pick stocks for you — or just buy the index and go home?

It sounds like a simple question. But most investors never get a clean, evidence-based answer. They get star ratings, 1-year return charts, and the reassurance that their fund manager “outperforms in volatile markets.”

This post looks at actual data — from multiple independent sources — to give you that honest answer.

The Main Scorekeepers: Who Studies This?

Three serious, independent sources track how active funds perform against their benchmarks in India:

1. SPIVA India Scorecard (S&P Dow Jones Indices, semi-annual)
The most comprehensive study. Tracks all actively managed Indian mutual funds using Morningstar fund data and AMFI quarterly AUM figures. Compares them against appropriate S&P India benchmark indices over 1-, 3-, 5-, and 10-year periods. Critically, it corrects for survivorship bias — funds that got merged or shut down (usually because they underperformed) are counted, not quietly ignored.

2. Morningstar Active/Passive Barometer (semi-annual)
A global study covering 9,200+ funds. Measures whether active funds survive and beat their passive peers — a more demanding test than just beating an index. Used here for global context.

3. AMFI Data (monthly)
The Association of Mutual Funds in India publishes monthly AUM figures for active vs passive categories, showing how investor behaviour is shifting.

What the Latest SPIVA India Data Shows (December 2025)

The most recent edition — SPIVA India Year-End 2025 (S&P Dow Jones Indices, data as of 31 December 2025, sourced from Morningstar and AMFI) — covers five categories of Indian mutual funds. Here are the results, category by category.

Large-Cap Equity Funds

Funds studied: 32 funds (1-year period); 97 funds tracked at the start of the 10-year period
Benchmark: S&P India LargeMidCap (represents top 85% of India’s float-adjusted market cap)
Benchmark return in 2025: +8.9%

The return gap that matters: Over 10 years, the average active large-cap fund returned 13.21% CAGR. The benchmark returned 14.68% CAGR. That 1.47% annual gap, compounding silently over a decade, is what separates a good outcome from a great one. On ₹10,000/month SIP over 20 years, that difference could be ₹15–20 lakh in final corpus — lost not to market crashes, but to persistent underperformance.

Survivorship caveat: Of the 97 large-cap funds that existed 10 years ago, only 79.4% survived to December 2025. The rest were merged or closed — typically after sustained underperformance. SPIVA counts these failed funds; most other performance comparisons do not.

ELSS (Tax-Saving) Funds

Funds studied: 39 funds (1-year); 41 funds at start of the 10-year period
Benchmark: S&P India BMI (broad Indian market index)
Benchmark return in 2025: +6.3%

The 3- and 5-year numbers look relatively better than large-cap funds. But over 10 years, nearly 83% of ELSS funds underperformed the broad market index. The takeaway: use ELSS for its Section 80C benefit. Don’t assume it’s a performance advantage.

Mid- and Small-Cap Funds

Funds studied: 58 funds (1-year); 62 funds at the start of the 10-year period
Benchmark: S&P India SmallCap
Benchmark return in 2025: −7.9% (the benchmark fell sharply)

The 1-year number looks remarkable. But the SPIVA report is direct about why: the S&P India SmallCap benchmark fell 7.9% while active funds only fell 0.7%. This happened because many active managers held a structural tilt toward larger “blue chip” stocks — which held up better than small caps in 2025. This is a style bias, not pure stock-picking skill. The 10-year underperformance rate of 79% tells the fuller story.

Composite Bond Funds

Funds studied: 139 funds (1-year); 143 funds at the start of the 10-year period
Benchmark: iBoxx ALBI India

The 10-year number is the most striking in the entire report. Nearly every active composite bond fund that existed a decade ago failed to beat its benchmark. Survivorship tells part of the story too: only 67.1% of composite bond funds survived the 10-year period — the worst fund attrition of any category.

Government Bond Funds

Funds studied: 25 funds (1-year); 41 funds at the start of the 10-year period
Benchmark: iBoxx ALBI India

The worst survivorship of all five categories: only 56.1% of government bond funds from 10 years ago are still running. Nearly half were merged or wound up.

Why Does This Pattern Keep Repeating?

1. The Cost Drag Is Structural

Under India’s new SEBI (Mutual Funds) Regulations, 2026, the estimated Base Expense Ratio for active equity funds is ~1.8% (plus statutory levies), versus ~0.3–0.5% for index funds and ETFs. The gap between an active large-cap fund’s real-world expense ratio and a Nifty 50 index fund is typically 0.50–0.70% per year in direct plans.

A fund must beat its benchmark by at least this margin every single year just to match the index’s net return. The SPIVA data shows the average active large-cap fund already trailed the benchmark by 1.47% per year over 10 years — more than the cost gap alone — meaning active management added no value even before adjusting for fees.

2. Large-Cap Markets Are Efficient

India’s largest stocks — Reliance, HDFC Bank, TCS, Infosys, ICICI Bank — are covered by 30–50 sell-side analysts each. Price-sensitive information flows into valuations quickly. By the time a fund manager builds conviction and executes a trade, the thesis is often already in the price. This is why the persistent underperformance is most severe in the large-cap category and relatively better in mid and small caps, where fewer eyes are watching.

3. Survivorship Bias Is Real — and Matters

Across all five SPIVA India categories, 27% of funds that existed 10 years ago no longer exist as of December 2025. When a fund consistently underperforms, the AMC merges it into a better-performing sibling scheme. The loser’s track record disappears. The winner’s history gets extended. If you only look at funds that survived to today, active management looks meaningfully better than it actually was. SPIVA’s methodology explicitly accounts for this.

How Morningstar’s Global Data Adds Context

The Morningstar US Active/Passive Barometer (Year-End 2025) covers 9,200+ active and passive funds and uses a stricter test: whether a fund survived and beat its passive peer average, not just its benchmark index. The result: only 38% of active strategies met this bar in 2025 — down from 42% in 2024. Over 10 years, just 21% of active funds survived and outperformed.

The India pattern is not unique. It is part of a global, structural reality that has been documented for over two decades.

The India Passive Fund Trend Confirms the Message

Investors are voting with their money. According to AMFI data:

• Passive fund AUM (ETFs + index funds) grew 27% in 2025, reaching ₹14.07 lakh crore by November 2025 — up from ₹11.11 lakh crore in December 2024
• By December 2025, passive AUM stood at ₹14.57 lakh crore, up 31.1% year-on-year
• Passive fund folios crossed 5 crore by December 2025, growing 29% year-on-year
• Index fund inflows alone leaped 278% year-on-year in fiscal 2025, per the AMFI Annual Report

Passive funds now represent approximately 17% of India’s total mutual fund AUM — up from just 1.4% in 2015. Indian investors are catching up with a pattern that developed-market investors learned decades ago.

What This Means for Your Portfolio

The data points toward a few clear principles:

Large caps → default to index funds. The evidence is consistent across every time horizon. An active large-cap fund needs a compelling, demonstrable reason to justify its higher cost — past outperformance is not sufficient, because performance persistence is weak.

Mid and small caps → active has a better case, but stay patient. Markets are less efficient in smaller companies. Skilled managers can add value here. But 79% still underperformed over 10 years, so be selective: look for stable fund managers, long track records across multiple market cycles, and low portfolio churn. Minimum holding period: 7–10 years.

Debt funds → passive wins decisively. A 96.5% underperformance rate over 10 years for composite bond funds is about as clear a signal as data can produce. Bharat Bond ETFs and target maturity index funds deserve serious consideration here.

ELSS → optimise for tax first, fund selection second. The 80C deduction has a clear financial value. But don’t assume an ELSS fund outperforms — the 10-year data says the odds are against it.

The Bottom Line

No hype. No stock tips. Just what the data from three independent sources says:

Across every long-term time horizon — 5 years, 10 years — a majority of active mutual fund managers in every Indian equity and debt category have failed to beat their benchmarks, after accounting for fees and survivorship bias. The few that do outperform in any given year frequently revert to average in the next.

The mutual fund industry will always produce compelling short-term stories. What it cannot change is mathematics: cost compounds against you, and outperformance is harder to sustain than it looks in a marketing brochure.

Buy the index. Pay less. Keep more.

Sources

This article is for educational purposes only and does not constitute investment advice. Mutual fund investments are subject to market risk. Please read all scheme-related documents carefully and consult a SEBI-registered investment adviser before making investment decisions.