The Banking Bet Most Indian Mutual Fund Investors Don’t Know They’re Making

Most investors buy mutual funds to avoid taking big, concentrated bets. The assumption is simple: if you own a few good funds across categories, diversification takes care of itself. In reality, many portfolios are far more concentrated than they appear, just not in obvious ways.

In India, that concentration shows up most clearly in banking.

Why Banking Sits at the Core of Indian Mutual Funds

Indian equity markets are built around financial services. As banks have grown larger, more profitable, and more deeply tied to economic growth, they’ve naturally occupied more space in market indices. Fund managers, regardless of style, rarely move too far away from this structure.

• Financial services are the single largest sector in most equity mutual funds

• Large-cap and flexi-cap funds, in particular, carry heavy banking exposure

• Different funds often end up looking similar at the sector level

Over time, this means many investors end up with portfolios where banking is not just an allocation, it’s the main engine driving returns.

Portfolio Type	Financial Services Weight
Nifty 50	25.7%
Nifty 100	22.6%
Large-Cap MF	33.8%
Flexi-Cap MF	29.2%
Large-Mid Cap MF	28.2%
Multicap MF	24.75%

From Sector Exposure to Familiar Names

When you look a little closer, the pattern becomes hard to miss. Across most diversified Indian equity funds, the same two banks keep appearing among the top holdings, HDFC Bank and ICICI Bank.

On their own, there’s nothing worrying about this. Both are large, well-run institutions that investors are generally comfortable owning. The concern isn’t about quality or governance. It’s about how often the same exposure gets repeated across different funds, usually without investors realising it.

How This Looks in Real Portfolios

To understand how common this is, here’s a snapshot of banking exposure across some widely held Indian equity mutual funds.

Mutual Fund Scheme	Banking / Financials (%)	HDFC Bank (%)	ICICI Bank (%)
SBI Bluechip Fund	21.89%	7.37%	7.24%
HDFC Flexi Cap Fund	40.05%	8.78%	9.45%
ICICI Pru Bluechip Fund	27.82%	9.78%	8.41%
Axis Bluechip Fund	25%	9.59%	8.11%
Mirae Asset Large Cap Fund	28.45%	9.77%	8.20%
Parag Parikh Flexi Cap Fund	26.28%	8.03%	4.85%

Compiled from recent scheme portfolio disclosures (Zerodha/ Morningstar / Value Research). Figures are indicative.

Look at the pattern, not the precision. Banking consistently takes up roughly a quarter to a third of the portfolio. Within that, the same two banks account for a meaningful slice.

A Subtle Shift Inside the Banking Sector

For years, HDFC Bank was widely regarded as the benchmark for Indian private banking, consistent growth, cautious risk management, and reliable execution. That reputation hasn’t disappeared. What has changed, however, is the distance between HDFC Bank and the rest of the pack.

Over the last few years, ICICI Bank has quietly closed much of the distance.

• Asset quality has improved significantly

• Growth has become more balanced across retail and corporate lending

• Profitability has stabilised after a long clean-up phase

It’s now entirely reasonable to imagine a future where ICICI Bank overtakes HDFC Bank in size over the next five years. This isn’t a bold call or a trading view. It’s simply an acknowledgement that leadership within a dominant sector doesn’t stay fixed forever.

Metric	HDFC Bank	ICICI Bank
Market Cap	Rs. 14,34,842 Crore	Rs. 10,15,191 Crore
ROCE	7.51%	7.87%
Gross NPA	1.33%	2.3%
Net Interest Margin	3.47%	4.57%

Why This Matters Even If You Never Pick Stocks

Most mutual fund investors are not choosing between banks. They’re choosing funds. The bank exposure comes bundled inside.

• You likely own both banks across multiple schemes

• Any shift in sector leadership will affect your portfolio automatically

• The real risk isn’t owning banks, it’s not knowing how much depends on them

When one sector dominates, changes within that sector carry more weight than most investors realise.

The Bigger Issue: Unintentional Concentration

Holding multiple funds often feels like diversification. But when those funds own the same sector leaders, risk quietly stacks up.

• Different fund names don’t guarantee different exposures

• Overlaps build over time, not all at once

• Performance starts to hinge on a narrow set of outcomes

This doesn’t mean something is wrong. It just means the portfolio deserves a closer look.

What Investors Should Take From This

This isn’t an argument for cutting banking exposure or switching between large banks. Banking will remain central to India’s growth story. The real takeaway is awareness.

• Look at sector exposure across your entire portfolio

• Identify where holdings overlap across funds

• Make sure returns aren’t riding on a single theme by default

Diversification works best when it’s deliberate, not accidental.

How Infnmoney Looks at It

At Infnmoney, portfolios are reviewed as a whole. Sector exposures are added up across schemes, overlaps are flagged, and risk is adjusted consciously.

Diversification isn’t about how many funds you own.It’s about how many different forces are actually driving your returns.

And sometimes, the biggest bet in a portfolio is the one you never meant to make.