The index closed up 1.8 percent. Your screen is green at the top. So why is your own portfolio bleeding red?
This happens to new investors all the time, and it is not a glitch. It is the single most common misunderstanding in the Nepali market. Here is the NEPSE index explained in one line: the headline number tracks the value of the biggest companies on the exchange, not the average stock and certainly not your stock. When people say “the market was up today,” they are reading a number that a handful of large commercial banks can move on their own. Treating that number as “the market” is the beginner trap this article is about.
The index is a real, useful tool. But it answers a narrower question than most people think it does. Let us go through how it is built, who actually moves it, and what you should watch instead.
How the NEPSE index is actually calculated
The headline NEPSE index is a market-capitalization-weighted index. That phrase does the heavy lifting, so it is worth unpacking slowly.
Market capitalization (market cap) is the price of one share multiplied by the total number of listed shares of a company. A bank trading at NPR 500 with 20 crore shares listed has a market cap of NPR 10,000 crore. A small hydropower firm trading at NPR 300 with 1 crore shares has a market cap of NPR 300 crore. The bank is roughly 33 times larger by market cap, even though its share price is not even double.
NEPSE adds up the market cap of every listed company at the close of trading, divides that total by the total market cap on a base date, and multiplies by 100. The base value is 100, set on February 12, 1994, when NEPSE began publishing the index. So an index reading of 2,000 means the combined market cap of listed companies is roughly 20 times what it was on the base date.
The word “weighted” is where beginners get caught. Because the index is built on total market cap, a company’s influence is proportional to its size, not to its share price and not to one-company-one-vote. A 1 percent move in the largest company shifts the index far more than a 1 percent move in a small one. Two hundred small companies can rise while three giants fall, and the index can still drop. That is not a flaw. It is the design. But the design is the source of the confusion.
Why a few big stocks swing the whole number
Nepal’s market is finance-heavy and concentrated. Banks, financial institutions, and insurance companies together have long made up the largest single block of total market capitalization. Older figures put banks, financial, and insurance companies at around 73 percent of market cap as of late 2020; more recent breakdowns put banks, financial institutions, and insurers closer to 52 percent, with hydropower around 16 percent. The exact percentage shifts year to year as new sectors list. The shape does not. A small number of large-cap names, dominated by commercial banks, carry most of the index’s weight.
Think about what that means in practice. If the three or four largest commercial banks have a strong day, the index can close up even if microfinance, hotels, and most hydropower names fell. The reverse is just as true. A bad day for the big banks can drag the index down, while two-thirds of the floor closed higher. The headline is a weather report for the giants. It says almost nothing about the smaller and mid-sized companies where a lot of retail money actually sits.
This is why the green number at the top can sit directly above your red portfolio. If you hold three small-cap hydropower stocks and a microfinance, the NEPSE index is barely measuring you at all.
There is a second, subtler distortion worth understanding. Market cap uses the total number of listed shares, which is driven by paid-up capital. In Nepal, companies regularly expand their share count through bonus shares and rights issues. When a bank issues a large bonus, its listed share count jumps, and so does its market cap and its weight in the index, even though no investor has put in fresh money for those bonus shares. So the index’s bank tilt is partly a function of how aggressively the bank sector has expanded paid-up capital over the years, not purely of investor demand. If you have ever wondered why two companies with similar prices can have wildly different influence on the index, the answer is paid-up capital. We unpack that distinction in market cap versus paid-up capital.
The Sensitive Index and the Float Index: same market, different lens
NEPSE does not publish only one number. The two you will hear about most after the headline are the Sensitive Index and the Float Index, and knowing the difference is part of reading the market like an adult.
The Sensitive Index tracks only the larger, more established companies. It is calculated from the market capitalization of companies classified in NEPSE’s “A” category, which generally requires a minimum paid-up capital, a multi-year listing history, and a record of profit and dividends. It was introduced with a base date of January 1, 2007. Think of it as the blue-chip view: it strips out the smallest and weakest names and shows you how the established end of the market is doing.
The Float Index uses a free-float methodology. “Free float” means the shares actually available to trade in the public market. It excludes promoter holdings, government holdings, and other locked-in shares that almost never change hands. This matters because a company can have a huge market cap on paper while most of its shares are held by promoters and never traded. A pure market-cap index treats those locked shares as if they were live; a free-float index does not. The Float Index has a base date of September 11, 2008 (26th Bhadra, 2065 BS). There is also a Sensitive Float Index, which applies the free-float method to the “A” category companies only.
One honest caveat. In Nepal, the float-adjusted indices have historically been imperfect because NEPSE has not always had a clean, consistently maintained classification of exactly which shares are freely tradable versus locked. The free-float concept is the right one. The local execution has been a work in progress. Treat the Float Index as directionally useful, not surgically precise.
The takeaway: the headline NEPSE index counts all listed shares as if they were tradable, so it overstates the weight of companies whose stock is mostly locked up with promoters. The Float Index tries to correct for that. Neither is “the market.” They are different lenses on the same floor.
It is also worth knowing about NEPSE 30, a separate index that tracks 30 selected companies chosen on criteria such as market cap, liquidity, and trading frequency, and rebalanced periodically. The idea behind a “30” index is the same one behind the Sensitive Index: narrow the universe to the names that actually drive the market and trade often, and you get a cleaner signal than the everything-included headline. The practical point for a beginner is simply that NEPSE publishes several official numbers, each built for a different purpose, and the one printed largest in the news is not automatically the one that answers your question.
The sub-indices are where your portfolio actually lives
Here is the part most beginners skip, and it is the most useful. NEPSE publishes a family of sector sub-indices: Banking, Development Bank, Finance, Microfinance, Life Insurance, Non-Life Insurance, Hydropower, Hotels and Tourism, Manufacturing and Processing, Trading, Investment, Mutual Fund, and Others. Each one tracks the market cap of a single sector.
These tell you what the headline hides. If you own hydropower, the Hydropower sub-index is your weather report, not the NEPSE index. A day where banks rally and hydropower falls will show a green headline and a red Hydropower sub-index. The sub-index is the one telling you the truth about your money.
Worked example. Say on a given day the headline NEPSE index rises 1.5 percent, driven almost entirely by commercial banks. You check the sub-indices: Banking is up 2.8 percent, but Hydropower is down 1.1 percent, Microfinance is down 0.9 percent, and Hotels are flat. If your NPR 5 lakh portfolio is two hydropower stocks and one microfinance, the headline’s “up day” is your down day. The headline lied to you, not on purpose, but because it was never measuring your sectors in the first place. The sub-indices would have told you the moment you looked.
If you hold bank stocks specifically, you also need to read the fundamentals behind the sector, not just its sub-index. Our piece on banking ratios: NPL, CD, and CAR covers what actually drives bank share prices. For hydropower, where the headline index almost never reflects what is happening to your stock, see how to value a hydropower stock on NEPSE.
Why breadth matters more than the headline
There is one more thing the index cannot show you, and it is arguably the most important: breadth.
Breadth is how many stocks went up versus how many went down. On any given day, you can have an index that closed up 1 percent while more stocks fell than rose, because the few big winners were heavy and the many losers were light. Professionals call this a “narrow” market, and it is usually a warning sign. A healthy rally is broad: most stocks participating, advancers comfortably outnumbering decliners. A rally carried by three banks while everything else sinks is fragile.
You can read breadth straight off the floorsheet and the daily advance/decline count, which is published alongside the index. Our guide on how to read the NEPSE floorsheet walks through exactly where to find it. Once you start checking advancers versus decliners next to the headline, you will never read a green number the same way again.
Macro context matters too. The single biggest driver of broad, market-wide moves in Nepal is liquidity and interest rates, which is to say monetary policy from the central bank. When the Nepal Rastra Bank loosens, money flows toward equities, and breadth tends to improve across sectors; when it tightens, the whole floor can sag regardless of company results. The headline index will register that tide, but it will not tell you that banks moved for one reason and microfinance for another.
So how should a beginner actually read it?
Use the headline NEPSE index for what it is good at: a quick, rough gauge of overall market direction over weeks and months, dominated by the large-cap, bank-heavy core. It is a fine first glance. It is a terrible last word.
For anything that touches your own money, go one layer deeper, in this order. First, check the sub-index for the sectors you actually hold. That is your real scoreboard. Second, glance at breadth, advancers versus decliners, to judge whether a move is broad and healthy or narrow and fragile. Third, if you want a cleaner read on the established end of the market, look at the Sensitive Index rather than the headline. The Float Index is worth a glance for the free-float perspective, with the caveat that its underlying data has been imperfect in Nepal.
The mistake to retire is “NEPSE was up, so I made money.” Those are two different statements about two different things. One is about a market-cap-weighted average of mostly banks. The other is about the specific stocks you own. They overlap only when you happen to hold the giants.
The verdict
The NEPSE index is a weather report for the giants, not a statement about your portfolio. It is market-cap weighted; it is dominated by commercial banks and the largest names, and by design it can rise on a day most stocks fell or fall on a day most stocks rose. None of that makes it useless. It makes it specific. It measures one thing well and a hundred other things not at all.
Beginners lose money, or at least lose their bearings, when they treat one number as the whole market. The fix costs you thirty extra seconds a day: read your sector sub-index, check breadth, and stop letting the headline tell you how you are doing. The index is the loudest number on the screen. It is rarely the one that is about you.
This is analysis, not financial advice.
