Small-Cap Premiums Are a Liquidity Illusion

The Price on the Screen Is for Small Trades

This is an opinion piece, and the opinion is simple: part of the premium that Indian small-cap stocks often carry over large-caps is not a reward for better businesses. It is a feature of how little of them can actually be traded.

When a stock trades at ₹500, that is the price at which the last few shares changed hands. For a large company with deep trading, you could sell a big position close to that price. For a small company that trades a few crore rupees a day, you could not. Market value assumes you can. That gap is the illusion.

Thin Floats, Big Flows

Many small Indian companies have high promoter holdings, so only a small share of their stock is available to trade. That is the free float.

Now add money. Small-cap mutual funds have drawn large inflows in recent years. In September 2026, they took in about ₹9,000 crore, more than any other equity fund category, according to AMFI data. That money must be invested in a limited pool of tradable small-cap shares.

When more money chases the same small float, prices rise. Multiples expand not because the companies changed, but because buying pressure is high and selling is scarce. It works well on the way up. The problem is the way down.

A Worked Example: The Cost of Getting Out

Illustrative example. A fund owns ₹500 crore worth of two different stocks.

Selling 20% of a day's volume is roughly the most a fund can sell without moving the price much. At that pace, exiting the small-cap position takes about six months of trading days. Selling faster means accepting lower prices, and if other funds are selling at the same time, the price could fall much further.

The ₹500 crore value on the fund's books assumes an exit price that may not be available when it is needed.

The Stress Tests Made It Visible

In early 2024, after heavy inflows into small-cap and mid-cap funds, SEBI and AMFI asked fund houses to publish monthly stress tests. These show how many days a fund would need to sell 25% and 50% of its portfolio under set assumptions.

The first results, based on February 2024 data, were striking. One of the largest small-cap funds estimated it would need about 60 days to sell half its portfolio. Another estimated about 27 days. A much smaller mid-cap fund, by contrast, estimated it could sell half its portfolio in under a day. Fund size matters as much as the category: the bigger the fund, the longer the exit.

These are not predictions of a crisis. But they show that in a rush to exit, the last investors out would face much worse prices than the daily NAV suggests.

A Rush for the Exit

Liquidity is not fixed. It shrinks exactly when it is needed most.

In calm markets, buyers and sellers place orders on both sides, and a small-cap stock can absorb modest selling. In a falling market, buyers step back. The orders waiting to buy below the current price thin out, and each sale pushes the price down further than the last.

Now add redemptions. If investors pull money from small-cap funds, the funds must sell to pay them. Many funds hold similar stocks, so they end up selling the same shares at the same time to the same shrinking pool of buyers. Prices fall, NAVs fall, more investors redeem, and the cycle continues.

The investors who leave first get the better prices. Those who stay pay the cost. That is one reason SEBI and AMFI pushed for the stress tests described above.

Valuing the Liquidity Discount

Professional valuers already deal with this problem for unlisted companies. They apply a discount for lack of marketability, because a share you cannot easily sell is worth less than an identical share you can. Thinly traded listed stocks sit somewhere between a liquid large-cap and an unlisted company.

A practical approach for a small-cap investor is to value the business first, as if it were liquid, and then ask how much less you would accept to own it given how hard it is to sell. The answer will depend on position size: a ₹5 lakh holding faces almost no exit problem, while a ₹500 crore holding faces a serious one.

The Part of the Premium That Can Be Real

Not all of the premium is an illusion.

• Faster growth. Many small companies do grow faster, and that deserves a higher multiple.
• Less research coverage. Fewer analysts follow small-caps, so mispricing in both directions is more common, which rewards careful work.
• A long-run small-company premium. Studies in many markets have found that small companies earned higher returns over long periods, partly as payment for this very liquidity risk.

The point is to separate the two parts: the premium for growth, which can be real, and the premium for scarcity, which disappears when flows reverse.

Habits for Valuing Small-Caps

1. Check average daily traded value, not just market cap.
2. Work out days to exit for a realistic position size.
3. Read your fund's stress test each month on the AMC website.
4. Compare the small-cap premium with growth. A premium with no growth advantage is mostly scarcity.
5. Apply a liquidity discount when valuing thinly traded stocks.

The Reframe

A small-cap's price tells you what the last buyer paid for a few shares. Its real value to a large holder is what they could get for all of them. In a crowd heading for a narrow exit, those two numbers can be very far apart.