Important terms of Stock Market Trading in India

Beginner's Guide to Option Chain, Strategy Builder, Trade from Chart, Scalper Mode, and Equity & F&O Trading

A simple and practical introduction to important trading tools and concepts for beginners in the stock market.

Important: Trading, especially futures and options, involves significant risk. The examples in this article are for educational purposes only and are not recommendations to buy or sell any security.

1. What is Equity Trading?

Equity means buying or selling shares of a company.

Example

Suppose a company has a share price of ₹1,000 and you buy 10 shares.

10 shares × ₹1,000 = ₹10,000

If the price later rises to ₹1,100:

Profit = (₹1,100 − ₹1,000) × 10 = ₹1,000

If the price falls to ₹900:

Loss = (₹900 − ₹1,000) × 10 = ₹1,000

Two Common Styles of Equity Trading

Trading Style	Meaning	Typical Holding Period
Delivery / Investing	Buy shares and hold them as an investment.	Days, months or years
Intraday Trading	Buy and sell shares within the same trading day.	Same trading day

Intraday Example

Buy price: ₹500

Sell price: ₹515

Quantity: 100 shares

Profit = ₹15 × 100 = ₹1,500

This is the gross profit before applicable charges and taxes.

2. What is F&O Trading?

F&O stands for Futures and Options. Futures and options are derivatives. Their value is based on an underlying asset such as a stock or index.

Term	Simple Meaning	Example Underlying
Future	A contract to buy or sell an underlying according to specified contract terms.	Index or eligible stock
Option	A contract giving the buyer a right, but not an obligation, subject to its terms.	Index or eligible stock

Futures

A futures contract is an agreement to buy or sell an underlying asset at a specified price according to the contract terms.

Example

Suppose a futures contract is trading at ₹1,000. You expect the price to rise.

If it moves to ₹1,050 and the contract quantity is 100: Gain = ₹50 × 100 = ₹5,000

If the price falls to ₹950: Loss = ₹50 × 100 = ₹5,000

3. What is an Option?

An option gives the buyer a right, but not an obligation, to buy or sell an underlying asset at a specified price, subject to the contract's terms.

Option Type	Symbol	Common View	Simple Idea
Call Option	CE	Generally used when expecting a rise	"I believe the market may go up."
Put Option	PE	Generally used when expecting a fall	"I believe the market may go down."

Simple Call Option Example

Suppose NIFTY is at 25,000. You buy a 25,000 Call Option for a premium of ₹100.

Suppose the option lot size is 75 for this hypothetical example.

Premium Paid = ₹100 × 75 = ₹7,500

If the premium rises from ₹100 to ₹150: Profit = ₹50 × 75 = ₹3,750

If the premium falls from ₹100 to ₹40: Loss = ₹60 × 75 = ₹4,500

Risk note: For an option buyer, the premium paid is generally the maximum amount at risk, although actual outcomes depend on the position and associated costs.

4. What is an Option Chain?

The Option Chain is one of the most important screens for an options trader. It shows available Call and Put options at different strike prices.

Simplified Option Chain

Strike	Call (CE) Premium	Put (PE) Premium
24,900	₹180	₹60
25,000	₹120	₹100
25,100	₹75	₹145
25,200	₹45	₹200

For example, 25,000 CE means a Call option with a 25,000 strike, while 25,000 PE means a Put option with a 25,000 strike.

Important Option Chain Information

Item	What It Means
Strike Price	The specified price associated with the option contract.
Premium	The price paid/received for the option.
Open Interest (OI)	The number of currently open option contracts.
Change in OI	How open interest has changed during the selected period.
Volume	Number of contracts traded during a period.
Implied Volatility (IV)	A market-based measure related to expected volatility and option pricing.
Bid / Ask	Prices available from buyers and sellers.
Greeks	Measures such as Delta, Gamma, Theta and Vega that describe option sensitivity.

Open Interest — OI

Open Interest tells you how many option contracts are currently open. A simple way to think about it is: OI shows where traders have existing open positions.

High OI by itself does not mean the market must rise or fall. It should be considered along with price, volume, market conditions and other information.

Change in OI

Yesterday's OI = 1,00,000

Today's OI = 1,20,000

Change = +20,000

This indicates that open interest increased.

Volume

Option A: Volume = 500

Option B: Volume = 50,000

Option B had much more trading activity during that period.

5. Support and Resistance Using Option Chain

Many traders use the option chain to identify possible areas of support and resistance.

Example Level	Observation	Possible Interpretation
24,900	Large Put OI	Possible support area
25,200	Large Call OI	Possible resistance area

These levels are not guaranteed. The market can move through them.

6. What is an Option Strategy Builder?

An Option Strategy Builder is a tool that allows you to combine multiple option positions and study how the overall strategy may behave.

Example: Bull Call Spread

Position	Option	Purpose in the Example
Buy	25,000 CE	Gain exposure to a possible rise
Sell	25,200 CE	Helps define the strategy's payoff and offsets part of the premium cost

This creates a Bull Call Spread. It is generally used when a trader expects the market to rise, but perhaps only up to a certain level.

Example: Long Straddle

Position	Strike	Expiry	Basic Idea
Buy Call	Same strike	Same expiry	Expect a significant movement but are uncertain about direction
Buy Put	Same strike	Same expiry	Expect a significant movement but are uncertain about direction

The strategy can lose money if the market does not move enough to compensate for the premiums paid.

Why Use a Strategy Builder?

Feature	Why It Can Be Useful
Maximum Profit	Shows the strategy's maximum potential payoff under its assumptions.
Maximum Loss	Shows the maximum potential loss for a defined strategy.
Breakeven	Shows the price level(s) where the modeled payoff reaches zero before costs.
Payoff Graph	Visualizes profit and loss at different underlying prices.
Required Margin	Can show an estimate of capital/margin requirements.

Maximum Profit = ₹10,000

Maximum Loss = ₹4,000

Breakeven = 25,080

You can study the possible outcome before entering the trade.

7. What is Trade from Chart?

Trade from Chart means placing an order directly from a price chart.

1. Search for a stock or instrument.
2. Open its chart.
3. Select Buy or Sell.
4. Enter quantity.
5. Enter price or order details.
6. Place the order.

Chart Information	How It May Help
Current Price	Shows where the instrument is trading.
Support	Helps identify areas where buying interest may appear.
Resistance	Helps identify areas where selling pressure may appear.
Trend	Helps understand the broader direction of price movement.
Indicators	Can provide additional information for a trading setup.
Entry / Stop-loss / Target	Helps organize a predefined trading plan.

Example Trading Plan

Entry: ₹500

Stop-loss: ₹490

Target: ₹520

Fast order placement is useful only when you already have a trading plan. Speed without a plan can make losses happen faster.

8. What is Scalper Mode?

Scalping is a very short-term trading style. A scalper tries to make relatively small profits from short-term price movements.

Typical Scalping Characteristic	Description
Holding Time	Seconds or minutes, depending on the strategy
Number of Trades	Often higher than longer-term trading
Target	Relatively small price movements
Screen Time	Usually high
Execution Speed	Often very important

Example

Suppose NIFTY is trading around 25,000. You enter at 25,000 and exit at 25,020.

20 points × 75 = ₹1,500

This is the gross result before applicable charges and taxes.

If NIFTY moves against you by 20 points: Loss = 20 × 75 = ₹1,500

9. Scalping vs Normal Trading

Feature	Scalping	Swing / Positional Trading
Holding Time	Seconds / Minutes	Days / Weeks / Months
Number of Trades	Usually high	Usually lower
Target per Trade	Relatively small	Relatively larger
Screen Time	High	Lower
Speed Required	Very high	Moderate
Risk	Can be high	Depends on position and strategy

Scalping is not necessarily easier just because trades are short. It can be psychologically demanding because decisions often need to be made quickly.

10. How These Tools Fit Together

Step	Tool / Concept	What You Do
1	Chart	Study price movement, trend, support and resistance.
2	Option Chain	Examine strikes, OI, volume, premiums and other option information.
3	Strategy Builder	Compare one or more option strategies and their modeled payoff.
4	Risk Plan	Decide entry, stop-loss, target and position size.
5	Trade from Chart	Place or manage the order using the chart interface.
6	Scalper Mode	Use a fast interface if your strategy involves very short-term trading.

11. A Very Simple Mental Model

Option Chain What options are available and what is happening around different strikes?

Strategy Builder What happens if I combine different options?

Trade from Chart Can I place or manage the trade directly from the chart?

Scalper Mode Can I use a fast interface for very short-term trading?

Equity & F&O What type of financial instrument am I trading?

12. Beginner Example — Putting Everything Together

Suppose an index is trading at:

25,000

You believe it may rise toward 25,300.

Your Analysis

Chart

You identify an upward trend.

Option Chain

You examine strikes around 25,000 to 25,300.

Strategy Builder

You compare buying a Call with a Bull Call Spread.

Risk Plan

You define your acceptable loss and trading conditions before entering.

Maximum Acceptable Loss: ₹3,000

Target: Based on Your Trading Plan

Entry: Only if Your Setup Occurs

You place the order and then follow your predefined risk plan. The important point is that you planned the trade before clicking the Buy or Sell button.

13. Common Beginner Mistakes

Mistake	Why It Can Be a Problem	Better Approach
Thinking options are easy money	Option prices can change rapidly and losses can occur quickly.	Learn the risks before trading.
Looking only at OI	OI alone does not tell you exactly where the market will go.	Consider OI with price, volume and context.
Ignoring position size	A large position can create excessive losses.	Use sensible position sizing.
No stop-loss or risk plan	You may not know how much you are prepared to lose.	Define risk before entering.
Overtrading	Repeated trades can increase costs and emotional decisions.	Trade only when your setup is present.
Confusing premium and underlying movement	An option premium does not necessarily move point-for-point with the underlying.	Learn option pricing and Greeks.

14. Important Option Terms to Learn Next

No.	Term	Beginner-Friendly Meaning
1	Call (CE)	An option generally associated with an expectation of a rise.
2	Put (PE)	An option generally associated with an expectation of a fall.
3	Strike Price	The specified price associated with the option contract.
4	Expiry	The date/time when the option contract expires according to its terms.
5	Premium	The price of the option.
6	Lot Size	The number of units represented by one derivatives contract.
7	Open Interest	Number of open option contracts.
8	Volume	Number of contracts traded during a period.
9	Implied Volatility	A market-based measure related to expected volatility and option pricing.
10	Intrinsic Value	The immediate exercise value component of an option.
11	Time Value	The portion of premium associated with time remaining and other pricing factors.
12	Delta	Measures how option price may respond to a change in the underlying, approximately.
13	Theta	Measures sensitivity of an option's value to the passage of time, approximately.
14	Gamma	Measures how Delta changes as the underlying price changes.
15	Vega	Measures sensitivity of an option's value to changes in implied volatility.

15. Final Summary

Tool / Concept	Simple Explanation
Equity Trading	Buy and sell shares.
F&O Trading	Trade futures and options.
Option Chain	Examine Calls, Puts, strikes, OI, volume, premiums and other option information.
Strategy Builder	Combine options and study possible profit and loss before placing a strategy.
Trade from Chart	Place or manage trades directly from the price chart.
Scalper Mode	A fast interface designed for very short-term trading.

Beginner Tip: Do not start by placing real-money option trades. First learn how the option chain works, understand basic strategies, practice reading charts, and learn risk management. Always understand how much you can lose before focusing on how much you can make.

Educational content only. Trading involves risk. Always conduct your own research and understand the risks before trading.