A stock trades at Tk 14. Its NAV is Tk 22 per share. That looks like a 36% discount to what the company is theoretically worth. So you buy it — and watch it fall to Tk 9 over the next three months.
What went wrong is not the math. The math was correct. What went wrong is what the math was hiding.
Net asset value is the single most cited metric in DSE investor forums, the one number people check before everything else for bank and financial sector stocks. It is also the most misunderstood. Understanding what NAV actually tells you — and what it deliberately leaves out — is the difference between spotting a genuine bargain and catching a falling knife.
The Formula Takes Ten Seconds. The Interpretation Takes Years.
NAV per share equals total assets minus total liabilities, divided by the number of outstanding shares. That is it. If a company owns Tk 5,000 crore in assets, owes Tk 4,200 crore, and has 100 crore shares outstanding, the NAV is Tk 8 per share.
You can find these numbers in any listed company’s annual report, on the DSE website, or through platforms like amarstock.com. The calculation itself is not where investors go wrong.
The problem is what counts as an “asset.”
A bank reports its loan book as an asset. A factory reports its machinery. A real estate company reports land at whatever value it last appraised. NAV treats all of these at face value — the number on the balance sheet. It does not ask whether that loan will actually be repaid, whether that machinery still works, or whether that land valuation was conducted by someone with a conflict of interest.
This is the gap between NAV as a number and NAV as a signal. And for Bangladesh’s financial sector, that gap is enormous.
Why NAV Matters More for Banks Than for Pharma
Not all sectors are created equal when it comes to NAV relevance. A pharmaceutical company’s value lies primarily in its brand, distribution network, and drug pipeline — intangible assets that barely register on a balance sheet. Judging Square Pharma by its NAV would miss most of what makes it valuable.
Banks are the opposite. A bank’s core business is holding financial assets — loans, government securities, interbank deposits. These assets sit directly on the balance sheet. When you calculate NAV for a bank, you are measuring the substance of its actual business, not a pale shadow of it.
This is why the P/E ratio is the primary valuation tool for most sectors, but the price-to-book ratio — market price divided by NAV per share — dominates banking sector analysis. A bank trading at a P/B ratio below 1.0 means the market values it at less than the net assets on its books.
The question is whether the market is wrong or whether the balance sheet is.
When Below-NAV Trading Is a Warning, Not a Sale
As of 2025, approximately one in four DSE-listed stocks trade below their face value of Tk 10 per share. Many of these are financial sector companies whose NAV suggests they should be worth far more than their market price.
Here is the problem. Non-performing loans across the Bangladesh banking system hit 35.73% of all outstanding loans as of September 2025. Within the textile and RMG sectors, the NPL ratio is 25–26%. Bangladesh Bank has flagged multiple NBFIs for outright liquidation.
A bank with Tk 22 NAV per share and an NPL ratio of 30% is not undervalued at Tk 14. It is potentially overvalued — because that Tk 22 figure includes billions of taka in loans that will never be repaid, carried on the books at full value. If you marked those non-performing assets to their likely recovery value, the real NAV might be Tk 10. Or Tk 6. Or negative.
This is the trap that catches DSE investors every cycle. The NAV number is accurate. The assets behind it are not.
How to Stress-Test a NAV Before You Trust It
NAV is a starting point, not a conclusion. Before treating a below-NAV stock as a bargain, run these checks:
NPL ratio. For banks and NBFIs, this is the single most important adjustment. A bank with 5% NPLs has a far more reliable NAV than one with 25% NPLs. The higher the NPL ratio, the more you should discount the stated NAV.
Revaluation reserves. Some companies revalue land or fixed assets upward, inflating NAV without generating any actual cash. Check whether a significant portion of equity comes from revaluation surplus rather than retained earnings.
Sector context. NAV is most useful for asset-heavy businesses — banks, NBFIs, real estate, holding companies. For pharma, tech, or service companies, earnings-based metrics tell you more.
Historical P/B range. Compare the current price-to-book ratio against the stock’s own five-year range and the sector average. A P/B of 0.6 might look cheap — until you discover the sector average is 0.5.
Combine NAV with ROE, provisioning coverage, and earnings trajectory. A bank trading below NAV with improving asset quality and rising ROE is a different proposition entirely from one trading below NAV because the market has figured out what the balance sheet has not yet admitted.
The number is easy. Knowing when to believe it — that is where the edge is.