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Summary: Most screens hunt for growth or cheapness. However, one such screen asked which companies maintained unusually steady operating margins over five years and why. The answer cuts across three very different businesses and reveals a key lesson: a stable margin is a starting point for analysis, not a conclusion
Most stock screens look for growth. Some look for cheapness. This one asks a quieter question: Which companies have kept their operating profit margins steady across business cycles?
We filtered companies with a market capitalisation above Rs 5,000 crore and ranked them by the change in their EBITDA margins over the last 20 quarters. EBITDA (earnings before interest, tax, depreciation and amortisation) is a measure of operating profitability, before accounting for debt costs or capital investments. The lower the standard deviation of EBITDA margin, the steadier the business.
Margin stability can mean very different things. In some companies, it signals pricing discipline or the ability to pass on cost increases to customers. In others, it just reflects a business where costs and revenues move together by design, not because management is doing anything special. This screen is not a buy list. It is a starting point.
But first, here’s what you should keep in mind: a stable EBITDA margin doesn't guarantee stable profits for shareholders. Borrowing costs, capital expenditure and depreciation all sit below EBITDA. A company can look perfectly steady at the operating level while profits weaken for entirely different reasons. That gap is where the real story often hides.
India's steadiest EBITDA-margin companies
Companies with a market cap greater than Rs 5,000 crore, ranked by lowest EBITDA-margin volatility over the last 20 quarters
| Company | 5Y revenue growth (%) | 5Y PAT growth (%) | Median EBITDA margin (%) | Stock rating (out of 5) |
|---|---|---|---|---|
| Redington | 14 | 18 | 2 | 3 |
| KEI Industries | 23 | 28 | 10 | 3 |
| Dixon Technologies | 55 | 45 | 4 | 3 |
| Gokul Agro Resources | 28 | 67 | 2 | 4 |
| Mphasis | 10 | 9 | 18 | 3 |
| Median EBITDA margin is for the last 20 quarters. PAT = profit after tax. | ||||
Of these, we will focus on three companies: Redington, KEI Industries and Dixon Technologies, because they illustrate how margin stability can look the same on a screen but mean something entirely different underneath.
#1 Redington
Redington connects global technology brands — think Dell, HP, Apple and similar — with retailers, enterprises and channel partners across India and overseas. It is not a high-margin technology company. It is a high-volume distributor earning a thin spread.
That spread is precisely why the EBITDA margin has stayed flat. In distribution, product cost moves with revenue. The company earns by managing vendor relationships, inventory, receivables and credit at scale. There is no pricing power here. The margin is protected by operating discipline, not market position.
And that distinction matters enormously.
Over FY22-25, Redington's revenue rose by nearly 59 per cent. Normalised profit after tax rose by about 5 per cent. The EBITDA margin held — but it didn't flow through to shareholders in any meaningful proportion.
The reason sits below the EBITDA line. In FY24, Redington explained that finance costs rose because working-capital requirements increased in the India business, alongside rising interest rates. When supply chains normalised after Covid, vendors pushed more inventory into the channel. Redington carried more stock, extended more credit and paid more to fund the cycle. None of that shows up in EBITDA.
The company has since recovered some ground. In Q4 FY25, lower interest rates and better working-capital management reduced finance costs. Operating expenses grew more slowly than revenue. The EBITDA margin is likely to remain stable.
But investors watching Redington should track working-capital days, finance cost as a share of operating profit, and whether higher-value businesses — cloud services, cybersecurity — can improve what actually reaches the bottom line.
#2 KEI Industries
KEI Industries makes wires and cables — extra-high-voltage, high-tension, low-tension, house wires and more — and has some engineering, procurement and construction (EPC) exposure. EPC refers to large project contracts where KEI manages the full scope of a job rather than just supplying the product.
Unlike Redington, KEI is a manufacturing business with brand recognition, a dealer network, exports and direct commodity exposure. Copper and aluminium, the key raw materials, move constantly. Margins in this business can swing sharply when those prices shift.
KEI has kept margins steady by passing raw-material cost increases through to customers, reducing its dependence on large, lumpy EPC contracts and building a more diversified revenue base. In FY25, dealer and distribution sales contributed a little over half of total sales: more brand-driven, less dependent on a few large customers, and generally more predictable.
This is the more meaningful kind of margin stability. Not structural inevitability. Actual management.
The test is what comes next. KEI is expanding capacity, particularly at its Sanand facility. New plants bring depreciation from day one, while utilisation takes time to build. If demand holds, operating leverage absorbs the cost. If utilisation lags because demand slows or competition sharpens, profit after tax margin and return ratios will come under pressure even if EBITDA appears stable.
KEI's margin quality looks genuine. The next two years of execution will confirm whether it holds.
#3 Dixon Technologies
Dixon is an electronics manufacturing services (EMS) company. It makes products for other brands: mobiles, consumer electronics, lighting, home appliances and telecom equipment. The mobile and EMS segment has driven most of its exceptional recent growth.
EMS is structurally a low-margin business. A large portion of revenue is material cost. Contracts often include provisions for passing cost changes through to the customer. So when Dixon's EBITDA margin stays flat, some of that is simply the nature of the model.
What is worth noting is how Dixon has managed that stability through an extraordinary pace of growth. Scaling revenue as fast as Dixon has (55 per cent over five years) without wide swings in operating margins is genuinely difficult. Unlike Redington, the revenue growth here has also flowed through to profits. Core profit after tax grew strongly, supported by operating leverage and an increasingly dominant mobile and EMS segment.
The margin, thin as it is, has been earned.
The next question is whether it stays earned. Product mix, customer concentration, import duties and volume fluctuations can all move Dixon's margins. Production-linked incentive schemes, such as government subsidies designed to encourage local manufacturing, have supported profitability. When those wind down, the benefit disappears.
The more durable path for Dixon is backward integration: moving from assembling imported components to making some of those components locally. If that happens, margins become structurally more defensible. If Dixon stays an assembler primarily, margins remain stable but thin and exposed.
The real question isn't stability. It's why.
Margin stability is not one thing.
For Redington, it reflects the economics of distribution — costs and revenues moving together by design, with the real risks sitting below the line. For KEI, it reflects active management, pricing discipline, mix improvement and a reduced dependence on volatile project revenue. For Dixon, it reflects execution quality in a structurally thin model that is growing fast enough to generate real profits.
A stock screen can show you the number. It cannot tell you whether the stability is a feature or just a characteristic. That part still requires reading.
Should you invest in any of the abovementioned companies?
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