Ishmohit Arora (SOIC)
- Dhruv Meisheri
- Jul 8, 2025
- 6 min read
Updated: Jul 16, 2025
Probably the most impactful teacher I've had so far. He took my fundamental analysis to a whole new level. I'm aware these notes aren't "wisdom", but they're concepts and mental models I use till this day!
Operating Leverage + DOL
Is the relationship between fixed and variable costs.
Airline industry tends to have high OL
Fixed costs are higher than Variable costs
Therefore it has a high OL. This means profits increase higher as the ticket sales increase because the fixed costs are already paid
DOL = Degree of Operating Leverage
Measures how well a company generates profit using its fixed costs
(Sales - VC) / Profit
If DOL is 1.6 and sales increase by 10%, the profits will increase by 16%.
What leads to operating leverage
Margin expansion
Asset turns improving
Signs in con calls and interviews
Triggers linked to Variant Perception and Return Ratios playing out
Triggers
Capacity utilization/expansion
Revenue mix transition
Acquisition Synergy
How to use
In asset heavy sectors (hospitals, hotels, chemicals), track capex and assets
Look out for peak PE, margins, operating leverage
Type in “Margins will expand” or “Operating Leverage” into Screener
In some companies, operating leverage can never kick in because the company is required to constantly do capex due to consumer demand
Price / Earnings
what decides the perception
when there are industry tailwinds pe ratio is rerated
bear vs bull market
higher interest rates lower pe ratio
company gaining market share will have higher pe ratio
higher earnings growth means higher perception meaning higher pe ratio
volatile business model means lower PE
What decides your return
entry price = entry pe * EPS
holding journey = pe * EPS growth
exit price = exit pe * EPS
buying a stock with pe of 60+ exposes to derating
How PE ratio can fool you
Low ratio
earnings are at cyclical peak
sitting on top of operating leverage
company is in dying industry or has stopped growing
high ratio
one off earnings
low pe example, aster DM concluding GCC business
high pe example, yasho industries capex
Peter lynch said “in a cyclical business sell low pe and buy high pe”
when it is high then earnings is destroyed
better to look at price to book and look at the trends
PE forecasting
forecast the earnings growth rate (can be from company guidance)
divide by market cap today to find forward PE
can derive base/bull/bear case by multiplying the projected earnings by certain PE to figure out the new market cap and see how much growth can be there
When to use specific ratios
PE - To be used for companies with no one off in earnings and linear to stable margins. Eg:- Can be used in IT industry.
EV/EBITDA - Asset heavy industries like hospitals, hotels
price to sales - to be used along with margin trajectory
price to cash flow - To be used in companies or industries where depreciation is high, and accounting PAT looks depressed. Shows real cash earnings of business in most cases.
price to book - most important use is in banking industry
mcap to order book - To be used in B2G businesses, contractors, Defence companies. Order book shows future growth potential.
ROE, ROA, ROCE
ROA
Indicator of how well a company uses its assets in terms of profitability
Gives investor idea of how efficient company management is at using assets to generate earnings
Net Profits / Total Assets
Dupont of ROA
Net profit margin * Asset turnover
Asset turnover = Sales / Total Assets
ROE
Measures company’s profitability in relation to shareholder equity
Good rule of thumb is to target ROE equal to or just above average of the peer group
Net Profits / Average equity
Companies with huge debt can fool you to show high ROE because it artificially reduces equity
Dupont of ROE
Net profit margin * Asset turnover * Financial Leverage
Financial Leverage = Assets / Equity (per $ of equity, how many assets are being held)
ROE is good if it comes from first 2, but not good if comes from financial leverage
ROCE
Assess company profitability in relation to capital efficiency
Understand how well a company is generating profit from its capital as it is put to use
Hygiene of ROCE is reflected much better in balance sheet than it is in income statement
EBIT (Operating Profit) / Capital Employed
Dupont of ROCE
EBIT margins * Capital employed turnover
Capital employed turnover = Sales / Capital employed
Capital employed formulas
Debt + equity - cash
Gross fixed assets
If EBIT margins is good then it shows demand side advantage
If CE turnover is good then it is supply side advantage
Finding Fraudulent Managements
Reliance capital broke into nippon which was bought by a japanese MNC. today, reliance capital has mcap of 300 cr but nippon has over 40,000
Learn from past
Use GPT to ask if there were any SEBI/Accounting issues with the company in the past
Resignation of key management personnel
Search up resignation in Screener Announcements
Specifically CFO is important as they’re responsible for financial statements
Promoter shareholding “skin in the game”
Hindustan Oil Exploration company is 98% public + 1.8% FII
Had many resignations in KMP
Large number of Related Party Transactions
Complicated corporate structure
Companies that misguide investors
Hear the past 3 years concalls
Ctrl + F “growth” and “guidance”
And see what has happened
Overly promotional CEO
Frequent TV interviews, PR stunts glorifying the prompts
Regular promoter selling
Stock is at all time high yet there is no history of execution
Management profile and background
Politically exposed promoters
Shareholding Pattern
4 types of shareholders
FII (foreign)
DII (domestic)
Public (retail)
Promoters
Study showed that when there were 10% increase in retail investors with less than 1L investment, only 10% of the stocks went up rest were negative
Must look at shareholding pattern looking at FII going up and retail not going up as fast
Working Capital
Activity Ratios: type of financial metric that shows how efficiently a company is leveraging the assets on its balance sheet to generate revenues and cash
Receivables: how efficient business is in collecting this
Inventory: Inventory buildup
Payables: If bought inventory on credit
Assets: how efficiently it is used to generate revenues and cash
Can be used to compare two different business within the same industry or to monitor a companies fiscal health over time
Inventory turnover ratio
Rate which company sells and replaces stock of goods
COGS / Average inventory
Sales / Average inventory
Receivable Turnover
Quantify a company’s effectiveness in collecting its accounts receivable or the money owned by customers or clients
Sales / Average Receivables
Payable Turnover
Rate at which a company pays off its suppliers
How efficient a company is at paying its suppliers and short-term debts
COGS / Average Payables
Working capital turnover
How efficiently a company is using its working capital to support sales and growth
Relationship between the funds used to finance operations and the revenue generated to continue operations and turn a profit
Sales / Average working capital
Working capital = Current assets - Current liabilities
Net working capital = Trade receivables + inventory - payables
AKA cash conversion cycle
Gross working capital = Trade receivables + inventory
Working capital
Definition
If wc falls, balance sheet lightens up
Debt falls
Capital employed falls
ROCE increases
FCF increases
Random Bits + Mental Models
Industry capital cycle
Business investment declines, industry consultation, firms exit: investors pessimistic
Improving supply side causes returns to rise above cost of capital, share price rises
New entrants attracted by prospect of high returns, investors optimistic
Rising competition causes returns to fall below cost of capital, share price underperforms.
Mean reversion
Asset price volatility and historical returns eventually revert to the long term average of the entire dataset
How it can be used
Always look at the long term margins of companies
If a company starts earnings super normal margins without any change in product mix
Always be careful as there is a chance that the company is over earning
Peak valuation + peak earnings + peak margins all 3 lead to zone of danger in investing
“Only when the tide goes out do you discover who’s been swimming naked” - Warren Buffet
When to sell
Volatility STOP
ATR
2x, 1.5x for overvalued stocks
PE ratio stops working when company is sitting on top of operating leverage
Price to book value
Book value is the net difference between total assets and total liabilities.
Total value of company asset that shareholders would receive if the company were to be liquidated
Why banks use P / BV
Macroeconomic conditions such as inflation, interest rate etc are the same for most banks
What differentiates is how efficiently the funds or assets are used and how best the spreads are managed
normally cost of funds and yields are around the same levels for most banks so the P / BV is determined by how well they enhance the spreads and how well they contain their NPAs
NPA = Non performing asset
Over earning - company earning more than average due to some shortage or one off order
Leads to creation of massive expectations and a large base size
Buffet on projecting cash flow
We first have to decide whether we can sensibly estimate an earnings range for 5 years out.
If answer is yes, we will buy the stock if it sells at a reasonable price in relation to the bottom boundary of our estimate
ADX - Average direction Index
Trend following indicator
Above 25 = Positive uptrend
40-60 = Super trend
VSTOP - Volatility Stop
Meant for exists
Volatility increases when dumping occurs



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