A state-owned oil refiner earns a twenty-one percent return on equity and trades at 0.87 times book, while the cohort of companies its size carries a median price-to-book near five. That single observation contains the whole problem with reading valuation off a screen sorted by multiple. A number that looks like a dislocation in one part of the market is ordinary in another, and a number that looks ordinary can be the real bargain. Taken alone, a multiple tells you very little until you know how large the company carrying it is.
I-3 asked whether the index level is justified. This is the question one layer down. The index can be fairly priced in aggregate while the mispricing inside it is severe, because aggregate valuation and cross-sectional valuation are different measurements, and the second is where a stock-picker actually operates. To get at it, take the full listed universe, roughly forty-eight hundred names once the data is cleaned, and slice it into market-capitalisation bands rather than judging every company against a single market-wide yardstick.
The structure that falls out is striking in its regularity.
| Market-cap band | Companies | Median P/B | Median P/E | Median ROE |
|---|---|---|---|---|
| Under $50M (nano) | ~2,900 | 1.25x | 18.3x | 5.2% |
| $50–150M | ~590 | 2.24x | 22.1x | 10.9% |
| $150–500M | ~490 | 2.96x | 26.7x | 11.8% |
| $0.5–2B | ~420 | 3.97x | 33.2x | 13.5% |
| $2–10B | ~250 | 5.69x | 39.4x | 14.5% |
| Over $10B (mega) | ~110 | 4.88x | 30.7x | 17.8% |
Two gradients run through that table, and they run in the same direction. Valuation climbs almost monotonically with size: the smallest cohort trades near 1.2 times book, the mid-market four to nearly six times. Quality climbs alongside it, return on equity rising from roughly five percent at the bottom to the mid-teens and beyond as you move up. The implication is uncomfortable for anyone who has spent two years being told that the small end of the market is where the compounders hide. The cheapest cohort is also the least profitable one. A business earning a five percent return on equity priced at 1.2 times book is fairly valued for what it is, in many cases generously so, and the headline cheapness at the bottom of the size curve is mostly impairment the market has correctly identified. The pricing of that bottom cohort is itself a revealed-preference signal: the buyers who could have closed the gap have looked and passed.
A Multiple Only Means Something Inside Its Band
That is the first use of the framework. Cheapness carries information only relative to a company's own size cohort. A three-times-book multiple is rich in the nano band and a discount in the mid band. Comparing a small-cap to the Nifty, or to the market median, folds the size premium into the read and produces a figure that means nothing. Comparing it to the band it actually lives in strips the size effect out and leaves the part that matters: whether this company is cheap against the peers that face the same liquidity, the same coverage, and the same governance discount.
The second use is locating the hunting ground. The valuable kernel sits in a middle band, away from the very bottom, where cheapness is mostly impairment, and away from the very top, where coverage is saturated and prices are efficient. Two conditions hold there at once. Dispersion is wide enough that the market clearly disagrees with itself, and analyst coverage is thin enough that the disagreement has not been arbitraged away. In the Indian cross-section that band runs roughly from a hundred and fifty million to two billion dollars in market value, call it fifteen hundred to fifteen thousand crore. Large enough to build and exit a position with some liquidity, small enough to be genuinely under-followed, and large enough that a governance or balance-sheet engagement can move the price. That is the part of the curve where bottom-up work compounds.
The Same Table Reads as a Crowding Gauge
The same table doubles as a positioning gauge. The richest cohort in the market today is the two-to-ten-billion-dollar band, trading near six times book and the high thirties on earnings after two years of flows into quality mid-caps. The quality is real; the return on equity is there. Yet six times book leaves a thin margin of safety if the multiple normalises, and a framework willing to call the bottom of the curve a value trap has to be equally willing to call the middle a crowding risk. Band medians tracked over time say as much about when a part of the market has become dangerous as about where it has become cheap.
The framework earns its keep by removing the single largest distortion, size, from the way a multiple reads, so that genuine dislocations separate from optical ones. That separation is the edge. A company cheap against its band while earning more than its band is a candidate for the work that justifies a concentrated position: the forensic balance-sheet pass, the governance read, the catalyst. A company cheap against the whole market because it is small and unprofitable is simply small and unprofitable. The discipline lives in refusing to confuse the two.
Which leaves the question the table cannot settle on its own. The quality gradient, profitability rising steadily with size, is unusually clean for a single snapshot. If it is structural, the product of scale economics, sharper governance, and the coverage that arrives with size, then the within-band approach holds across regimes. If it is largely a flow phenomenon, the gradient will compress when the cycle turns, and the bottom of the curve will look very different on the other side. Which of those is true is the thing worth knowing before the next drawdown decides it for us.
Views are the author's own. Data sourced from public filings and exchange disclosures.