Introduction
High margins have a strange power over investors. For lay investors, they are comforting and almost conclusive.
A business reports a 20%+ margin, and the mind quickly interprets it as a positive signal for quality, pricing power, and competitive advantage. We rarely pause to ask a more uncomfortable question: why is the margin high in the first place?
After we see high margins, it is an important next question because anyone who has tracked a business for a few years knows margins can look very different once conditions change.
- Some businesses earn high margins because their structure allows them to do so year after year.
- Others enjoy high margins because the environment temporarily tilts in their favour.
On the surface, both look equally attractive. But there is a subtle danger in believing that both are the same.
When we treat every high margin as the same, we often end up paying for profits that do not come back in the future. In simple terms, we assume a good year will repeat, even when the business conditions that created it were temporary.
To see this clearly, let us move away from theory and look at two real Indian companies: Nestlé India and Deepak Nitrite to understand the concept of “high margins” more deeply.
Same Margins, Very Different Signals
At a glance, both companies look healthy.
- Nestle India reported revenue of about Rs. 20,000 crore in FY25 with profit before tax (PBT) of roughly Rs. 4,450 crore.
- Deepak Nitrite reported revenue of around Rs. 8,100 crore with PBT close to Rs. 950 crore.
| Description | Name | Dec-21 | Dec-22 | Dec-23 | Mar-24 | Mar-25 | Remark |
| Total Operating Revenues | Nestle | 14,709.41 | 16,896.96 | 19,126.30 | 24,393.89 | 20,201.56 | – |
| PBT | Nestle | 2,883.77 | 3,255.97 | 4,038.29 | 5,288.87 | 4,447.47 | – |
| PBT Margin | Nestle | 19.6% | 19.3% | 21.1% | 21.7% | 22.0% | Start is similar. Improving margins |
| Total Operating Revenues | Deepak Nitrite | 4,359.75 | 6,802.19 | 7,972.06 | 7,681.83 | 8,281.93 | – |
| PBT | Deepak Nitrite | 1041.72 | 1,434.45 | 1,145.88 | 1,101.69 | 952.75 | – |
| PBT Margin | Deepak Nitrite | 23.9% | 21.1% | 14.4% | 14.3% | 11.5% | Start is similar. Contracting margins |
So you can see, both of these are not marginal businesses by any measure, right?
Both have delivered periods of strong profitability over the last five years. In FY21, PBT Margin of Deepk Nitrite was even better than that of Nestle India.
Both these companies have been widely discussed as “high-quality” companies at different points in time.
If you only looked at recent (FY21/FY22) margins or peak profits, you might place them in the same mental bucket, right?
But that would be a mistake.
The story begins to change as soon as you stop looking at one year in isolation and start reading the numbers as a sequence.
The First Test – How The Profit is Behaving
Nestlé’s profit trajectory is almost boring in its consistency.
- Revenues rise steadily,
- Profits follow a similar path.
There are no dramatic spikes, no sudden collapses. Even when input costs rise, profitability bends but does not break. Over the last five years, the profits have compounded rather than oscillate.
| Description | Mar-21 | Mar-22 | Mar-23 | Mar-24 | Mar-25 | Remark |
| Total Operating Revenues | 14,709.41 | 16,896.96 | 19,126.30 | 24,393.89 | 20,201.56 | Improving Revenue |
| PBT | 2,883.77 | 3,255.97 | 4,038.29 | 5,288.87 | 4,447.47 | Improving profits |
| PBT Margin | 19.6% | 19.3% | 21.1% | 21.7% | 22.0% | Consistently improving margins |
Deepak Nitrite tells a very different story.
Profits surged sharply during the chemical upcycle and then started tapering off. Even though revenues remained relatively strong, profits took a heavy beating.
The peak margin came earlier (Mar-21), and subsequent years show compression.
This does not say much about management quality; it simply shows that industry conditions have started moving in the opposite direction for Deepak Nitrite (Chemical Sector).
| Description | Mar-21 | Mar-22 | Mar-23 | Mar-24 | Mar-25 | Remark |
| Total Operating Revenues | 4,359.75 | 6,802.19 | 7,972.06 | 7,681.83 | 8,281.93 | Revenue almost doubled in the last 5 years. |
| PBT | 1041.72 | 1,434.45 | 1,145.88 | 1,101.69 | 952.75 | Profit remained stuck in the same period (slightly declining trend) |
| PBT Margin | 23.9% | 21.1% | 14.4% | 14.3% | 11.5% | Margin almost halved in last 5 years |
This single observation already hints at the difference between structural and cyclical margins.
- Structural margins (like Nestle’s) persist across time.
- Cyclical margins (like Deepak Nitrite) announce themselves loudly, and then fade away when the cycle turns.
Nestle India – Explain How Margins Are an Outcome of Structure
Nestlé’s margins are not protected by luck. They are protected by habit, brand, distribution, and pricing power.
The company sells products that consumers buy repeatedly, often without much thought. That gives it room to pass on cost increases gradually without destroying demand.
This shows up clearly in the cash flow statement.
Over the last five years, Nestlé’s operating cash flow has remained consistently strong and closely aligned with profits.
In FY25 alone, operating cash flow was close to Rs. 2,900 crore. What does it mean? The company is not just reporting profits; they are collecting it as well.
| Description | Mar-21 | Mar-22 | Mar-23 | Mar-24 | Mar-25 |
| Operating Cash Flow | 2936.35 | 4174.79 | 3392.19 | 2737.43 | 2271.37 |
| Net Prifit (PAT) | 3,314.50 | 3,932.84 | 2,998.67 | 2,390.52 | 2,144.86 |
| Cash Flow as % of PAT | 89% | 106% | 113% | 115% | 106% |
Even the balance sheet supports this conclusion.
| Description | Mar-21 | Mar-22 | Mar-23 | Mar-24 | Mar-25 |
| Long-Term Borrowings | 27.47 | 26.66 | 26.20 | 25.48 | 22.48 |
| Short-Term Borrowings | 6.59 | 3.37 | 5.21 | 5.66 | 730.86 |
| Debt / Equity Ratio | 0.02 | 0.01 | 0.01 | 0.01 | 0.18 |
| Tangible Assets | 2,993.97 | 3,043.70 | 4,545.90 | 3,460.25 | 5,473.61 |
| Depreciation | 390.19 | 403.01 | 428.91 | 537.78 | 518.17 |
| Capex | 1,204.75 | 452.74 | 1,931.11 | -547.87 | 2,531.53 |
Over five years, Nestlé India’s long-term borrowings have steadily declined from about Rs. 27 crore to Rs. 22 crore. In the same period, the debt-to-equity stayed close to zero for most of the period (except for FY25, when it grew marginally to 0.18 levels).
In other words, margins are not being propped up by leverage. Read about how companies can boost its ROE by the use of debt.
Capital spending (CapEx) also follows a measured pattern.
Tangible assets have expanded from roughly Rs. 3,000 crore to over Rs. 5,400 crore, with depreciation rising gradually alongside it. Capex has been spread across years rather than rushed in after a good phase.
When input costs squeeze margins, this kind of balance sheet discipline allows profitability to recover naturally. That is what structural margins look like when you read the numbers.
Deepak Nitrite: When Margins Borrow from the Cycle
Deepak Nitrite’s best margin years coincided with an exceptionally strong phase for global chemicals.
Between FY19 and FY22, revenue jumped from about Rs. 2,700 crore to nearly Rs. 6,800 crore. This happened at a CAGR of about 32%. In the same period, profit before tax (PBT) expanded sharply from roughly Rs. 270 crore to over Rs, 1,430 crore. The PBT expansion happened at a CAGR of ~68%
So you can see how fast the margin was widening for the company. But the point we must note here is that this margin expansion was helped by the favourable pricing and tight supply.
| Year | Total Operating Revenues | Revenue YOY Growth | PBT | PBT YOY Growth | Remark |
| Mar-16 | 1,372.93 | – | 89.13 | – | – |
| Mar-17 | 1,370.48 | -0.18% | 134.70 | 51.13% | – |
| Mar-18 | 1,651.45 | 20.50% | 110.85 | -17.71% | – |
| Mar-19 | 2,699.92 | 63.49% | 267.98 | 141.75% | High Growth Phase |
| Mar-20 | 4,229.71 | 56.66% | 806.40 | 200.92% | High Growth Phase |
| Mar-21 | 4,359.75 | 3.07% | 1,041.72 | 29.18% | Impact of COVID |
| Mar-22 | 6,802.19 | 56.02% | 1,434.45 | 37.70% | High Growth Phase |
| Mar-23 | 7,972.06 | 17.20% | 1,145.88 | -20.12% | Growth Slowing |
| Mar-24 | 7,681.83 | -3.64% | 1,101.69 | -3.86% | – |
| Mar-25 | 8,281.93 | 7.81% | 952.75 | -13.52% | – |
The shift becomes visible when you track what happened next (between FY22 and FY25).
Revenues stayed elevated at around Rs. 7,600–8,100 crore between FY23 and FY25. But profits did not. Profit before tax (PBT) declined from the FY22 peak to about Rs. 1,100 crore in FY24 and further to under Rs. 950 crore in FY25.
This is a strong indicator of margin contraction even though volumes and topline held up. This suggest of a turning cycle and not the demand.
Cash flows further reinforced this reading of the company operating in a cyclical industry.
While PBT continued to grow into FY22, operating cash flow had already started weakening.
From a peak of about Rs. 1,000 crore in FY21, operating cash flow declined to Rs. 824 crore in FY22 and further to around Rs. 650 crore in FY23. This is happening even as profits (PBT) were still holding up.
In the following years, cash flows remained volatile, rising briefly in FY24 before falling again in FY25. This was happening while PBT showed consistent year-on-year declines.
This widening gap between reported profits and cash generation is a typical sign of margins that were supported by the cycle rather than by durable business strength.
| Year | Operating Cash Flow | Cash Flow YOY Growth | PBT YOY Growth | Remarks |
| Mar-16 | 166.09 | – | – | – |
| Mar-17 | 49.01 | -70.49% | 51.13% | – |
| Mar-18 | 183.00 | 273.39% | -17.71% | – |
| Mar-19 | 63.69 | -65.20% | 141.75% | High Growth Phase |
| Mar-20 | 764.66 | 1100.60% | 200.92% | High Growth Phase |
| Mar-21 | 999.04 | 30.65% | 29.18% | Impact of COVID |
| Mar-22 | 823.84 | -17.54% | 37.70% | High Growth Phase |
| Mar-23 | 649.92 | -21.11% | -20.12% | Growth Slowing |
| Mar-24 | 878.06 | 35.10% | -3.86% | – |
| Mar-25 | 624.70 | -28.85% | -13.52% | – |
Now lets read the investing and funding numbers alongside margins, as it becomes more revealing.
Deepak Nitrite’s PBT margin peaked between FY20 and FY21, rising from about 19% to nearly 24%, before beginning a steady decline to around 14% in FY23–FY24 and further to about 11.5% in FY25.
Importantly, this margin compression was already visible by FY23. Yet capital spending did not slow in response.
Cash outflows on investing remained elevated at roughly Rs. 500 crore in FY23 and again in FY25. At the same time, long-term borrowings, which had been brought down aggressively to just Rs. 43 crore in FY23, jumped sharply to over Rs. 1,000 crore by FY25.
The pattern is telling an importat this about the company. The sequence matters here.
Margins had already started falling when the company increased its investments and took on more debt. This usually happens in cyclical businesses, where decisions made during good times continue even after the cycle turns, unlike structurally strong businesses where profits support growth more steadily.
| Year | Long-Term Borrowings | Long-Term Borrowings | PBT Margin (PBT / Op. Revenue) | Remark |
| Mar-16 | -168.19 | 158.93 | 6.5% | |
| Mar-17 | -352.55 | 218.44 | 9.8% | |
| Mar-18 | -524.73 | 550.46 | 6.7% | |
| Mar-19 | -162.55 | 869.86 | 9.9% | |
| Mar-20 | -427.92 | 779.43 | 19.1% | Peak Margin |
| Mar-21 | -168.19 | 524.04 | 23.9% | Peak Margin |
| Mar-22 | -352.55 | 187.49 | 21.1% | Margin Compression, Borrowing also very low |
| Mar-23 | -524.73 | 43.02 | 14.4% | Margin Compression, But CapEx continued, Borrowing very low |
| Mar-24 | -162.55 | 216.95 | 14.3% | |
| Mar-25 | -427.92 | 1,025.71 | 11.5% |
If we put together these observations, the numbers suggest the business is moving back to more normal conditions after a phase when high margins were helped mainly by favourable industry conditions rather than by lasting strengths of the business.
Why High Margins Mislead Investors
The problem is not that cyclical margins exist. They always will.
The problem is that we extrapolate them. We take a peak-year margin and quietly assume it represents the business’s earning power, rather than a temporary phase when industry conditions were unusually favourable.
- With Nestle, extrapolation, within reason, makes sense because margins are anchored in business structure.
- With Deepak Nitrite, extrapolation is dangerous because margins are anchored in conditions that can reverse.
For both these companies, the margin number may look similar on the surface, but how dependable it is over time is very different.
This is why valuation mistakes often happen near peak margins.
Investors end up paying structural multiples for cyclical profits. When margins normalise, disappointment follows.
We must note that cyclicality is the nature of the business in which companies like Deepk Nitrite operates. The dissapointment is not because the company failed, but because our (investor’s) expectations were built on the wrong foundation.
A Simple Way to Read Margins Better
You do not need spreadsheets full of assumptions or complex valuation models to judge margin quality. In most cases, the answer is already visible in the financial statements.
If you know where to look and in what order, the quality of margin will present itself as if it was always there.
The key is to move step by step, instead of jumping straight to conclusions based on one good or bad year.
Step 1: Look at Margins Across Good and Bad Years
Start by checking margins over at least one full business cycle. Ask yourself a simple question:
Did the company maintain reasonable margins when input costs rose or demand softened, or did margins look impressive only during favourable periods?
Structural margins usually dip and recover. Cyclical margins often rise sharply and then fade just as quickly.
Step 2: Compare Profits with Cash, Not Just Revenue
Next, place the profit and loss statement next to the cash flow statement.
Over time, operating cash flow should broadly track reported profits.
If profits look strong but cash generation keeps fluctuating or falling, it is a warning sign.
Durable margins tend to show up in cash; temporary margins often stay confined to the income statement.
Step 3: Watch the Order in Which Things Change
The sequence of numbers matters.
Observe whether margins started declining before revenues slowed.
When margins compress even while sales remain stable, it usually means external conditions like pricing, costs, or competition have started to turn.
This is a common feature of cyclical businesses and an early signal many investors overlook.
Step 4: Check What the Company Does When Margins Peak
Look at capital expenditure and borrowing decisions during high-margin years.
If a company significantly increases spending or takes on more debt assuming current margins will continue, caution is warranted.
Businesses with structural margins tend to grow steadily. Cyclical businesses often expand aggressively just before conditions normalise.
Step 5: Form a Judgement, Not a Formula
Once you go through these steps, trust the overall picture rather than any single ratio.
If multiple signals point to instability, the margin is probably cyclical, no matter how attractive it looks today.
If margins hold up across conditions and are backed by cash and discipline, they are more likely structural.
High margins themselves are not the risk. The real risk is assuming they will last without asking why they exist.
When you learn to separate profits earned by business strength from those helped by favourable phases, margins stop being impressive headlines. Now, they will start becoming what they should be: useful clues, not final answers.
Conclusion
For most long-term investors, companies with structural margins tend to be the more reliable compounding machines.
Their profits are supported by business fundamentals that do not change easily. Brand strength, customer habits, cost advantages, or pricing power – all these factors support the margin of such a company.
Returns may not always look spectacular in any single year, but they tend to add up steadily over time.
The main risk with such businesses is usually the price you pay (as they generally trade at high PE multiples), not the durability of the profits themselves.
Cyclical businesses, on the other hand, are not inferior, they simply require a different mindset.
They can deliver excellent returns, but only when bought with an awareness of where the business and the industry are in the cycle.
The mistake investors often make is treating cyclical margins like structural ones and holding on through the downcycle, expecting peak profitability to return quickly.
In reality, timing and discipline matter far more here than conviction.
A simple rule of thumb helps:
- Structural businesses are usually best bought when short-term issues or cost pressures temporarily depress margins but do not damage the underlying franchise.
- Cyclical businesses are better approached in the opposite way. But them when their margins are low, sentiment is poor, and expectations are already subdued.
Understanding which type of margin you are dealing with does not guarantee success, but it dramatically improves the odds of making the right decision for the right kind of business.
Have a happy investing.
