Stock market guides and fundamental analysis
Direct answers to the questions investors actually search for — how screening works, how Indian, US and UK exchanges differ, how to read a chart, and how to size a portfolio. No jargon, no signals, no hype.
Original DeepScreen research
Research frameworks designed for DeepScreen
These first-party research pages focus on reproducible workflows, primary-source checks, worked examples and transparent limitations. They are designed to be updated as the underlying methodology and source data change.
NSE vs BSE — a complete research guide
A practical, source-led guide to comparing NSE and BSE: listings, liquidity, price formation, indices, derivatives, execution and the research questions that actually matter.
NSE · BSE · Nifty 50 · Sensex
How to analyse an Indian stock in 15 minutes
A repeatable 15-minute triage for Indian stocks: business model, financial health, cash flow, valuation, ownership, peers and red flags before deeper due diligence.
Indian stock analysis · 15 minute stock analysis · fundamental analysis · research checklist
P/E vs PEG vs EV/EBITDA
A practical comparison of P/E, PEG and EV/EBITDA, including formulas, when each multiple breaks, and a worked example you can reproduce on live company data.
P/E · PEG · EV/EBITDA · valuation multiples
ROE vs ROCE explained with real-company examples
Understand ROE and ROCE, why they can diverge, and how to compare companies such as TCS and Infosys without mistaking a high ratio for a complete quality verdict.
ROE · ROCE · TCS · Infosys
How to detect a debt trap
A practical checklist for finding debt stress early: leverage growth, interest burden, cash conversion, refinancing, working capital, dilution and collateral risk.
debt trap · debt analysis · interest coverage · balance sheet
Free cash flow analysis guide
Learn how to move from accounting earnings to operating cash flow and free cash flow, with checks for working capital, capex, acquisitions, leases and dilution.
free cash flow · cash flow analysis · owner earnings · capex
How promoter pledging affects risk
Understand pledged or otherwise encumbered promoter shares, where to verify them in Indian filings, what can change the risk, and why the trend matters more than a single percentage.
promoter pledge · promoter holding · shareholding pattern · SEBI disclosures
10-year compounder analysis framework
A long-horizon framework for researching businesses with the potential to compound value: reinvestment runway, returns on capital, cash flow, competition, governance, dilution and valuation.
compounder · 10 year stock analysis · long term investing · quality business
What is a stock screener?
A stock screener filters thousands of listed companies down to the handful that match your rules. Learn the filters that matter and how to build your first screen.
stock screener · screening filters · value screens · growth screens
How to read candlestick charts
Every candle shows open, high, low and close. Learn to read bodies, wicks and the handful of patterns that actually carry information.
candlestick charts · technical analysis · chart patterns
P/E ratio explained
The price-to-earnings ratio tells you what the market pays per rupee of profit. Learn trailing vs forward P/E, sector norms, and when the ratio breaks.
P/E ratio · valuation · fundamental analysis
How to apply for an IPO in India
Step-by-step: what you need before applying, how the UPI and ASBA routes work, how lots and the price band are set, and how allotment is decided.
IPO · ASBA · UPI mandate · allotment
Options trading basics
Understand calls, puts, strike prices, premium, expiry and the Greeks — plus why most retail option buyers lose money.
options · calls and puts · option chain · implied volatility
A practical guide to dividend investing
How dividend yield, payout ratio and dividend cover work, what the ex-dividend date means for your order, and how to spot an unsustainable payout.
dividends · dividend yield · ex-dividend date · income investing
How to build a diversified portfolio
Asset allocation, how many stocks you actually need, position sizing rules, correlation traps and a simple rebalancing schedule.
portfolio · diversification · asset allocation · rebalancing
Market capitalisation explained
What market cap measures, how large, mid and small caps differ in risk and return, and why market cap is not the same as company value.
market cap · large cap · mid cap · small cap
RSI and moving averages explained
How the relative strength index and simple/exponential moving averages are built, what crossovers actually mean, and where both indicators fail.
RSI · moving average · golden cross · technical indicators
Fundamental ratio glossary
P/E
P/E shows how much investors pay for one unit of annual earnings. Compare it with close sector peers and the company's own history, not with the whole market.
PEG
PEG relates a company's earnings multiple to its growth rate. A reading near 1 is often considered balanced, but growth quality and durability matter more than a single threshold.
P/S
P/S values a company against revenue and is useful when earnings are small or negative. It must be read with margins because sales without profit can destroy value.
P/B
P/B compares market value with accounting net assets. It is most useful for banks and asset-heavy companies and less useful for software or brands whose assets are not fully recorded.
EV/Revenue
EV/Revenue values operations while accounting for debt and cash. It helps compare companies with different financing, especially before profits become stable.
EV/EBITDA
EV/EBITDA compares enterprise value with EBITDA, an operating-profit measure before interest, tax, depreciation and amortisation. The multiple is conventionally interpreted only when EBITDA and enterprise value produce a positive ratio.
ROE
ROE measures profit generated from shareholder capital. High ROE is strongest when it is consistent and not created by excessive debt.
ROA
ROA measures how efficiently a company turns assets into profit. Asset-light and asset-heavy sectors naturally have different normal ranges.
ROCE
ROCE measures operating returns from both equity and debt capital. It is a useful quality signal for comparing companies with different leverage.
D/E
Debt-to-equity measures financial leverage. A lower value usually means a more conservative balance sheet, but normal leverage varies sharply by industry.
LT D/E
Long-term debt to equity isolates structural borrowing and helps show how much enduring leverage supports the business.
Payout
The payout ratio shows how much profit is distributed as dividends. A sustainable payout leaves enough cash to maintain the business and fund growth.
Operating leverage
Operating leverage shows how strongly operating profit responds to sales. High fixed costs can amplify both growth and downturns.
Piotroski F-Score
The Piotroski F-Score is a nine-point financial-strength checklist. Higher scores indicate more positive accounting signals, while lower scores call for closer investigation.
Altman Z-Score
The Altman Z-Score combines five balance-sheet and income-statement measures to estimate financial-distress risk. Higher readings generally indicate a wider safety margin.
Beneish M-Score
The Beneish M-Score screens for patterns associated with possible earnings manipulation. A concerning score is a prompt for deeper filing review, not proof of misconduct.
Every topic covered on DeepScreen
Browse the subject index and jump straight to the tool that answers it.
Stock screening & scanners
Compare supported markets and explore the stock screening tools.
Open the screenerStocks, prices & forecasts
Review the scoring factors, underlying data and limitations before comparing companies.
Read the methodologyInvesting & trading basics
Learn how valuation, profitability and leverage inform company research.
Read the guidesOptions, futures & derivatives
Explore strategy construction, expiry breakevens and potential losses.
Options toolsEarnings, dividends & market calendar
Explore the illustrative corporate-event planner and learn how to verify event dates.
Earnings and dividend plannerIPOs & new listings
Review available offering information and risks before researching a new listing.
IPO calendarPortfolio, watchlists & diversification
Keep the companies you are researching together in your watchlist.
Build a portfolioIndia: NSE, BSE, Nifty & Sensex
Explore NSE listings and fundamental research for Indian companies.
NSE screenerUS: NYSE, Nasdaq, Dow & S&P 500
Browse NYSE listings and company research across US industries.
NYSE screenerUK: LSE & FTSE 100
Explore supported London listings and the available company fundamentals.
LSE screener