
- What Is NAV, Really?
- Why Do Investors Fall for the Low-NAV Trap?
- The Math That Settles It
- What You Should Actually Look At
- The NFO Trap
- One Case Where NAV Does Matter
- Things to Keep in Mind
- The Takeaway
India now has over 25 crore mutual fund folios. Yet, one of the most consistent misconceptions among investors remains this: a fund with a lower NAV is cheaper, and therefore a better buy. It is not. This blog explains what NAV actually measures, why it can mislead investors, and which metrics you should use instead.
What Is NAV, Really?
NAV, or Net Asset Value, is simply the per-unit price of a mutual fund on any given day. The formula is straightforward:
NAV = (Total Assets of the Fund − Liabilities) ÷ Total Number of Units Outstanding
It tells you how much one unit of that fund costs today, nothing more. If you invest ₹1,000 in a fund with an NAV of ₹10, you get 100 units. If you invest the same ₹1,000 in a fund with an NAV of ₹100, you get 10 units. The money deployed is identical. The number of units is irrelevant.
Why Do Investors Fall for the Low-NAV Trap?
This is a textbook case of anchoring bias, a cognitive pattern where the brain fixates on a reference number and makes judgments relative to it. The same bias leads investors to prefer a ₹50 stock over a ₹5,000 stock, assuming the cheaper one has more room to grow. In reality, the stock price alone says nothing about value or future returns.
With mutual funds, the reasoning goes: "NAV ₹10 means the fund is new and has more room to rise." This logic does not hold. A fund's NAV rises when its underlying portfolio performs well, not because it started low. A fund that launched at ₹10 in 2015 and now trades at ₹180 has simply compounded well over time. That high NAV is a sign of performance, not a barrier to entry.
The Math That Settles It
| Fund | NAV (Start) | NAV (End, 1 Year) | Units (₹1,000 invested) | Value After 1 Year | Return |
| Fund A | ₹10 | ₹11 | 100 | ₹1,100 | 10% |
| Fund B | ₹100 | ₹115 | 10 | ₹1,150 | 15% |
Fund B delivered better returns despite a NAV 10 times higher than Fund A. The only number that matters here is the percentage return, and that has nothing to do with where NAV started.
What You Should Actually Look At
1. Rolling Returns vs. Benchmark A fund's 1-year return in isolation can be misleading. Rolling returns measure how the fund has performed across every possible 1-year, 3-year, or 5-year window, not just a cherry-picked period. More importantly, compare those returns against the fund's declared benchmark (e.g., Nifty 50, Nifty 500 TRI). A fund that consistently beats its benchmark over 5-year rolling periods is demonstrating genuine skill.
2. Alpha measures how much excess return a fund has generated over its benchmark after accounting for risk. Positive alpha means the fund manager is adding value beyond what the market delivered. Zero or negative alpha means you are paying for active management and not getting it.
3. Expense Ratio This is the annual fee charged by the fund, expressed as a percentage of your investment. A 1% difference in expense ratio may seem small, but on a ₹10 lakh investment compounding at 12% over 20 years, a 1% higher expense ratio reduces your final corpus by approximately ₹18–20 lakh. Every percentage point matters over long horizons.
4. Consistency of Outperformance Check how many of the last 7 years the fund beat its benchmark. A fund that outperformed in 6 out of 7 years is meaningfully different from one that had one exceptional year that inflated its average return.
The NFO Trap
In FY25 alone, 70 NFOs were launched in India, collectively mobilising ₹85,244 crore. AMFI India: A significant portion of this capital flowed in partly because investors saw ₹10 NAV as an opportunity.
Here is the structural problem: a new fund at ₹10 NAV has no track record. There is no rolling return data, no benchmark comparison history, and no evidence of how the fund manager handles a market downturn. Investing in an NFO on the basis of its NAV is equivalent to hiring someone for a senior role because their salary expectation is low, the number tells you nothing about the quality of the outcome.
One Case Where NAV Does Matter
In mutual funds, you can choose between two options when investing: the growth option and the IDCW option (Income Distribution cum Capital Withdrawal, earlier called the dividend option).
In the IDCW option, the fund periodically distributes a portion of its gains to investors. This distribution is paid out of the fund's NAV. Here is how it works: when a fund declares a payout of, say, ₹2 per unit, that ₹2 is deducted directly from the NAV on the record date.
Example:
| Fund A | Fund B | |
| NAV before payout | ₹12 | ₹120 |
| IDCW declared | ₹2 per unit | ₹2 per unit |
| Units held | 100 | 10 |
| Total payout received | ₹200 | ₹20 |
| NAV after payout | ₹10 | ₹118 |
Both investors put in ₹1,200. But Fund A's investor, holding more units because of the lower NAV, receives ₹200 in payout, while Fund B's investor receives only ₹20.
Here, NAV directly affects the cash you receive, because your payout is calculated per unit multiplied by the number of units you hold.
However, there is an important nuance: the payout is not a gain. The NAV falls by exactly the amount distributed. Your total wealth (units × NAV + cash received) remains the same before and after the payout. The IDCW option simply converts your fund value into periodic cash; it does not create additional returns.
For investors in the growth option, where no payout is made, and gains stay invested, the NAV level has no bearing on returns. This is why the growth option remains the standard choice for long-term wealth creation.
Things to Keep in Mind
- A low NAV fund is not a bargain. It is simply a newer or smaller fund with less compounding history behind it.
- Past returns do not guarantee future performance. Use rolling returns across multiple time periods, not point-to-point snapshots.
- For SIP investors, a falling NAV during market downturns is not a loss signal; it means your monthly instalment buys more units, which benefits you when markets recover (rupee cost averaging).
- Always compare funds within the same SEBI category. Comparing the NAV of a large-cap fund to that of a small-cap fund is not a valid comparison; they carry different risk profiles and benchmarks.
The Takeaway
NAV is a unit price; it tells you how many units your money buys, not whether the fund is worth buying. What determines the quality of a mutual fund is whether it consistently beats its benchmark after costs, over multiple market cycles. Before investing, evaluate rolling returns, alpha, and expense ratio. The NAV column is the last thing you should be looking at.
Disclaimer: The content is meant for education and general information purposes only. Past performance is not indicative of future returns. Mutual Funds are non-exchange traded products, and INDstocks is merely acting as a mutual fund distributor. All disputes with respect to distribution activity, would not have access to the exchange investor redressal forum or arbitration mechanism. Mutual Fund investments are subject to market risks, read all scheme related documents carefully before investing. INDstocks Private Limited (formerly known as INDmoney Private Limited) 616, Level 6, Suncity Success Tower, Sector 65, Gurugram, 122005, SEBI Stock Broking Registration No: INZ000305337, Trading and Clearing Member of NSE (90267, M70042) and BSE, BSE StarMF (6779), AMFI Registration No: ARN-254564, SEBI Depository Participant Reg. No. IN-DP-690-2022, Depository Participant ID: CDSL 12095500, Research Analyst Registration No. INH000018948 BSE RA Enlistment No. 6428.