Lesson 04 — Market Cap & Liquidity (Beginner Safety)
Week 01 · Lesson 4 of 7 · Week 01 — Market Basics (India)
Market capitalisation is a quick way to estimate company size: Market cap = Share price × Number of shares outstanding "Market cap = company ka size (roughly...
Market cap (simple)
Market capitalisation is a quick way to estimate company size:
Market cap = Share price × Number of shares outstanding
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"Market cap = company ka size (roughly)."
Market cap categories in India
| Category | Market cap range | Examples | Risk profile |
|---|---|---|---|
| Large cap | > ₹50,000 Cr | Reliance, TCS, HDFC Bank | Lower volatility, more info |
| Mid cap | ₹10,000–50,000 Cr | Persistent Systems, AU Bank | Moderate risk, growth potential |
| Small cap | < ₹10,000 Cr | Many emerging companies | High risk, high reward, low liquidity |
Why it matters for beginners
- Smaller companies can be riskier (business volatility, governance, liquidity)
- Large caps often have more stable information flow and analyst coverage
Liquidity (simple)
Liquidity means how easily you can buy/sell a stock without significantly affecting its price.
Low liquidity can cause:
- Wider price swings
- Slippage (execution at worse price than expected)
Beginner guardrail
If you are new, prefer liquid, widely-followed stocks first. "Pehle safe learning, phir adventure."
What to look for
| Red flag | What it means |
|---|---|
| Bid-ask spread > 1–2% | Hard to exit at a fair price |
| Daily volume < 50,000 shares | May get stuck without buyers |
| Only a few trades per minute | Illiquid — don't invest here yet as a beginner |
| Stock in BSE T-group | Trade-to-trade segment — extra settlement restrictions |
Visual: liquidity impact
On InvestingSamjho
- Search for a large-cap (e.g., Reliance) and a small-cap in the Equity Catalog
- Check the liquidity group annotation — A-group = more liquid, T-group = restrictions
- Compare daily volume data for both to see liquidity difference firsthand
Key takeaway
Market cap tells you company size. Liquidity tells you how easily YOU can buy/sell. Start with large-cap, highly liquid stocks to learn without friction costs.