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Fundamental Analysis

Inventory, depreciation and asset quality

Two of the softest numbers on any balance sheet. Both depend on management judgement, and both tell you something before the profit line does.

Fundamental AnalysisAdvanced12 min read
Browse Fundamental Analysis(169)

Inventory is recorded at the lower of cost and realisable value, which sounds precise and is a judgement. Fixed assets are carried at cost less depreciation, using lives management estimates. Both sit on the balance sheet as confident single numbers.

Think of it like this
Godown mein pada purana maal

A shop's stock register says ₹8 lakh of goods. Walk into the godown and a third of it is last season's design nobody will buy at that price. The register is not lying — it simply has not been revalued.

In the market

That is inventory carried above realisable value. It appears as an asset at full cost until someone decides to write it down, and the timing of that decision belongs to management.

What to watch in inventory

SignalWhat it may mean
Inventory days rising while sales are flatGoods are not moving; a write-down may be coming
Finished goods rising faster than raw materialsProduction continued after demand slowed
A large write-down after years of noneThe problem existed for years and was recognised late
Inventory growing faster than revenue for several yearsEither stocking for growth, or accumulating unsellable stock
A change in valuation methodDisclosed in the policy note, and it changes reported profit

Depreciation as a judgement

Depreciation spreads an asset's cost across its estimated useful life. Extend the estimate and the annual charge falls, so profit rises with nothing happening to the business or its cash.

Worked example
What an extended asset life does
₹1,200 crore of plant
At a 10-year lifeProfit before tax reduced by that amountDepreciation ₹120 cr a year
Extended to 15 yearsProfit rises ₹40 crDepreciation ₹80 cr a year
Cash flow effectDepreciation is non-cashZero
Where it is disclosedChange in estimate, with its effect statedThe accounting policy note
What to checkThere is no correct life, only a comparisonPeer asset lives
A company extending asset lives in a weak year has manufactured profit and disclosed exactly that in a note. The check is a peer comparison — a fifteen-year life where competitors use nine is the signal.
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Depreciation is added back in operating cash flow, which is why profit can be adjusted by it and cash cannot.

Impairment, and why it arrives late

When an asset can no longer generate the value it is carried at, it must be written down. The judgement about when that has happened rests with management, and there is a natural reluctance to make it.

How write-downs behave
Reassuring
  • Small, regular provisions as part of normal operations
  • Write-downs taken promptly when demand shifts
  • Inventory days stable through a downturn
  • Asset lives consistent with peers
Concerning
  • One enormous write-down after years of none
  • A new management team writing down predecessors' assets
  • Repeated "exceptional" impairments every year
  • Asset lives extended in a weak year
Check yourself

A company extends the useful life of its plant from 10 to 15 years. What happens to reported profit and to cash?

Simple bhasha mein
Godown mein pichhle season ka maal

Register keh raha hai ₹8 lakh ka stock hai. Godown mein jao toh tihaayi maal pichhle season ka design hai jo us rate pe koi nahi lega. Register jhooth nahi bol raha — bas usko dobara aanka nahi gaya. Inventory ka number bhi aisa hi ek faisla hai, aur woh faisla management karta hai.

What to remember
  • Inventory and depreciation are both judgements presented as precise numbers.
  • Watch inventory composition, not just the total — finished goods rising with flat sales is the signal.
  • Extending asset lives raises profit and does nothing to cash.
  • One enormous write-down after years of none means the problem existed for years.
  • A large impairment in a new CEO's first year usually means assets were overstated before.
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Common questions

Short, direct answers to what people ask about this topic.

inventory write-down meaning
A write-down is the reduction of inventory’s carrying value when what it can realistically fetch falls below the cost it is recorded at. Because stock is carried at the lower of cost and net realisable value, goods that can no longer be sold at cost must be marked down and the loss runs through the profit and loss account. The judgement about when that moment has arrived belongs to management, which is why write-downs typically appear well after the problem started.
inventory is carried on the balance sheet at
The lower of cost and net realisable value. That phrasing sounds precise and is actually a judgement, because net realisable value is an estimate of what the goods will fetch less the cost of selling them, and management decides when the estimate has dropped below cost. It is how a stock register can carry last season’s unsellable goods at full cost until someone chooses to revalue them.
what happens to profit if a company extends the useful life of its assets
Reported profit rises, because spreading the same asset cost over more years reduces the annual depreciation charge. Cash is completely unaffected — depreciation never moves money, so operating cash flow does not change at all. A change in estimated useful life must be disclosed in the accounting policy note with its effect stated, and the meaningful check is comparing the assumed life against what peers use for similar plant.
difference between depreciation and impairment
Depreciation spreads an asset’s cost across its estimated useful life in planned annual instalments, while impairment is a one-off write-down taken when the asset can no longer generate the value it is carried at. Depreciation is routine and predictable; an impairment is an admission that the carrying value was wrong. One enormous impairment after years of none usually means the overstatement had existed for several years before anyone recognised it.
what does rising inventory days with flat sales indicate
It usually means goods are not moving and a write-down may be approaching. The more revealing detail is the composition: raw material building up ahead of an announced expansion is planning, while finished goods rising as revenue stagnates means production carried on after demand slowed. Finished goods are the hardest inventory to clear without discounting, so that second pattern tends to reach the margin a quarter or two later.