📚 Fundamentals of Derivatives
What are Derivatives?
Definition
Derivatives are financial instruments whose value is derived from an underlying asset (stocks, indices, commodities, currencies). They allow traders to gain exposure to price movements without owning the actual asset.
Nature of Derivatives
| Characteristic | Description | Benefit |
|---|---|---|
| Leverage | Control large asset value with small capital | Amplify returns on investment |
| Obligation | Futures = mandatory; Options = right, not obligation | Flexibility in decision making |
| Hedging | Protect existing positions against loss | Risk reduction |
| Speculation | Bet on price direction for profit | Profit from volatility |
| Settlement | Cash settlement or physical delivery on expiry | Clear exit point, reduced counterparty risk |
Types of Derivatives
FUTURES
- Obligation to buy/sell
- Standardized contracts
- Exchange-traded
- No upfront premium
- Daily settlement
- Higher leverage
OPTIONS
- Right, not obligation
- Call & Put options
- Exchange-traded
- Upfront premium paid
- Expires on set date
- Limited downside (premium)
Key Advantages
✓ Price Discovery: Derivatives help discover fair market prices
✓ Risk Transfer: Shift risk between market participants
✓ Cost Efficiency: Lower transaction costs than spot market
✓ Liquidity: High trading volumes ensure easy entry/exit
✓ Flexibility: Create custom strategies for various market views
✓ Risk Transfer: Shift risk between market participants
✓ Cost Efficiency: Lower transaction costs than spot market
✓ Liquidity: High trading volumes ensure easy entry/exit
✓ Flexibility: Create custom strategies for various market views
📖 Key Terminologies in F&O
Essential Terms
🎯 Underlying Asset
The actual stock, index, or commodity on which the derivative contract is based. Example: NIFTY 50 index, Reliance stock, Gold commodity.
📦 Lot Size
The standardized quantity you must trade. Example: Nifty futures lot = 75 units, Bank Nifty = 40 units. All contracts must be in multiples of lot size.
📅 Expiry Date
The date when the contract must be settled. Typically the last Thursday of each month. After expiry, contract ceases to exist. No transactions possible after expiry.
⚡ Strike Price
The predetermined price at which the option holder can buy (call) or sell (put) the underlying asset. Multiple strike prices available for each expiry.
📈 Call Option (CE)
The right to BUY the underlying at strike price. Used when bullish. Profit = Stock Price - Strike Price - Premium (if > 0).
📉 Put Option (PE)
The right to SELL the underlying at strike price. Used when bearish. Profit = Strike Price - Stock Price - Premium (if > 0).
💰 Premium
The price paid to buy an option. Seller receives premium. Buyer's maximum loss = Premium paid. Seller's maximum profit = Premium received.
📊 Open Interest (OI)
Total number of outstanding contracts. Indicates liquidity and market activity. Higher OI = better liquidity and tighter bid-ask spreads.
🔄 IV (Implied Volatility)
Market expectation of future price volatility. Higher IV = Higher option premiums. Used to gauge market uncertainty.
🎓 Moneyness
ITM (In The Money): Option has intrinsic value (profitable)
ATM (At The Money): Strike = Spot price
OTM (Out of The Money): Option has no intrinsic value yet
ATM (At The Money): Strike = Spot price
OTM (Out of The Money): Option has no intrinsic value yet
Greeks - The Sensitivity Measures
| Greek | Measures | Importance | Range |
|---|---|---|---|
| Delta (Δ) | Change in option price for 1 unit change in underlying | Most important - shows directional exposure | -1 to +1 |
| Gamma (Γ) | Rate of change of delta | High near strike price, important for risk management | 0 to 1 |
| Theta (Θ) | Time decay (daily loss due to time) | Critical for option sellers (positive theta) | Negative for buyers |
| Vega (ν) | Change in option price for 1% change in IV | Important in volatile markets | Usually 0-20 |
🛡️ Hedging vs. Speculation
Understanding the Difference
🛡️ HEDGING
- Protects existing position
- Reduces risk/loss potential
- Accepts cost (premium)
- Insurance-like strategy
- Limits both gain & loss
- Conservative approach
🎯 SPECULATION
- Takes directional bet
- Seeks profit from volatility
- High risk/high reward
- No underlying position
- Unlimited profit potential
- Aggressive approach
Hedging Strategies
Example 1: Protective Put (Married Put)
Scenario: Own 100 shares of TCS @ ₹4000. Worried about price drop.Strategy: Buy 1 Put Option (strike ₹3900, premium ₹50)
Outcome:
- If price rises to ₹4200: Stock profit = ₹20,000; Put expires worthless; Net = ₹19,500
- If price falls to ₹3700: Stock loss = ₹30,000; Put profit = ₹20,000; Net loss = ₹10,000 (protected)
Example 2: Covered Call
Scenario: Own 100 shares of Reliance @ ₹2500. Want extra income.Strategy: Sell 1 Call Option (strike ₹2600, premium ₹30)
Outcome:
- If price stays below ₹2600: Keep stock + premium = ₹3,000 income
- If price rises to ₹2800: Stock called away at ₹2600 + premium = ₹2,630/share return
Example 3: Futures Hedge
Scenario: Portfolio of ₹10 lakhs invested in Nifty 50 stocks. Market crash expected.Strategy: Short 1 Nifty Futures contract (current price 20,000)
Outcome:
- If Nifty falls 5% to 19,000: Portfolio loss = ₹50,000; Futures profit = ₹75,000 (adjusted for lot); Net gain
- If Nifty rises 5% to 21,000: Portfolio gain = ₹50,000; Futures loss = ₹75,000; Mostly hedged
Speculation Strategies
Example 1: Long Call (Bullish Bet)
View: Stock will rise from ₹100 to ₹120Action: Buy 1 Call @ strike ₹105, premium ₹5
Outcomes:
- Stock @ ₹110: Profit = ₹(110-105-5) = ₹0 (break-even)
- Stock @ ₹120: Profit = ₹(120-105-5) = ₹10 = 200% return
- Stock @ ₹95: Loss = Premium ₹5 (maximum loss)
Example 2: Long Futures (Maximum Leverage)
View: Nifty will rise; want maximum leverageAction: Buy Nifty Futures @ 20,000 with ₹1 lakh margin (200,000 exposure)
Outcomes:
- Nifty rises to 20,500: Profit = ₹37,500 (37.5% return on margin)
- Nifty falls to 19,500: Loss = ₹37,500 (37.5% loss on margin)
Example 3: Long Put (Bearish Bet)
View: Stock will fall from ₹100 to ₹80Action: Buy 1 Put @ strike ₹95, premium ₹5
Outcomes:
- Stock @ ₹90: Profit = ₹(95-90-5) = ₹0 (break-even)
- Stock @ ₹75: Profit = ₹(95-75-5) = ₹15 = 300% return
- Stock @ ₹110: Loss = Premium ₹5 (maximum loss)
⚡ Leverage & Margin in Derivatives
What is Leverage?
Definition: Leverage allows you to control a large asset value with a relatively small capital outlay (margin). It amplifies both gains and losses.
Formula: Leverage Ratio = Total Exposure / Capital Used
Formula: Leverage Ratio = Total Exposure / Capital Used
Margin Requirement
| Type | Description | Typical Level |
|---|---|---|
| Initial Margin | Capital needed to open position | 5-20% of contract value |
| Maintenance Margin | Minimum to keep position open | 75% of Initial Margin |
| Mark-to-Market | Daily settlement of profits/losses | Applied daily at end of trading |
| Margin Call | Demand to deposit more margin if it drops below maintenance level | Failure = position auto-liquidated |
Impact of Leverage
📊 Leverage Impact Calculator
Leverage Examples
Scenario: Nifty Futures Trading
Without Leverage (Spot Market):Capital: ₹10 lakhs | Buy 50 shares @ ₹20,000 each
- Price rises 10% to ₹22,000: Profit = ₹1,00,000 (10% return)
- Price falls 10% to ₹18,000: Loss = ₹1,00,000 (10% loss)
With Leverage (Futures):
Capital: ₹1 lakh margin | Control ₹10 lakhs worth (10x leverage)
- Price rises 10%: Profit = ₹10,00,000 (100% return on margin!)
- Price falls 10%: Loss = ₹10,00,000 (100% loss - margin wiped out)
Risk Management with Leverage
✓ Position Sizing: Never risk more than 1-2% of capital per trade
✓ Stop Loss: Set strict stop loss to limit downside
✓ Margin Monitoring: Keep margin utilization below 70%
✓ Diversification: Don't put all capital in one trade
✓ Risk/Reward Ratio: Aim for at least 1:2 risk-reward ratio
✓ Stop Loss: Set strict stop loss to limit downside
✓ Margin Monitoring: Keep margin utilization below 70%
✓ Diversification: Don't put all capital in one trade
✓ Risk/Reward Ratio: Aim for at least 1:2 risk-reward ratio
📊 Options Trading - Calls & Puts
Call Options (CE)
| Aspect | Buyer | Seller |
|---|---|---|
| Right/Obligation | Right to BUY (not obligation) | Obligation to SELL if buyer exercises |
| Premium | Pays premium (cost) | Receives premium (income) |
| Max Profit | Unlimited (stock rises infinitely) | Limited to premium received |
| Max Loss | Limited to premium paid | Unlimited (theoretically) |
| Sentiment | Bullish (expect rise) | Bearish (expect no rise) |
| Break-Even | Strike + Premium | Strike - Premium |
Put Options (PE)
| Aspect | Buyer | Seller |
|---|---|---|
| Right/Obligation | Right to SELL (not obligation) | Obligation to BUY if buyer exercises |
| Premium | Pays premium (cost) | Receives premium (income) |
| Max Profit | Limited to (Strike - Premium) | Limited to premium received |
| Max Loss | Limited to premium paid | Unlimited (theoretically) |
| Sentiment | Bearish (expect fall) | Bullish (expect no fall) |
| Break-Even | Strike - Premium | Strike + Premium |
Call Option Payoff Diagram
Long Call: Buy right to purchase. Profit when stock rises above (Strike + Premium). Limited loss to premium paid.
Put Option Payoff Diagram
Long Put: Buy right to sell. Profit when stock falls below (Strike - Premium). Limited loss to premium paid.
Popular Options Strategies
BULLISH STRATEGIES:
• Long Call - Buy call for upside
• Bull Call Spread - Buy lower call, sell higher call
• Cash-Secured Put - Sell put expecting price to hold
BEARISH STRATEGIES:
• Long Put - Buy put for downside
• Bear Put Spread - Sell lower put, buy higher put
• Bear Call Spread - Sell call, buy higher call
NEUTRAL STRATEGIES:
• Iron Condor - Limited risk in both directions
• Straddle - Bet on volatility
• Strangle - Lower cost volatility play
• Long Call - Buy call for upside
• Bull Call Spread - Buy lower call, sell higher call
• Cash-Secured Put - Sell put expecting price to hold
BEARISH STRATEGIES:
• Long Put - Buy put for downside
• Bear Put Spread - Sell lower put, buy higher put
• Bear Call Spread - Sell call, buy higher call
NEUTRAL STRATEGIES:
• Iron Condor - Limited risk in both directions
• Straddle - Bet on volatility
• Strangle - Lower cost volatility play
Settlement & Exercise
Option Period
Option is active and tradeable. Can buy, sell, or exercise anytime during this period.
Expiry Date
Last day of trading. Options expire on the last Thursday of each month (typically). After expiry, contract ceases to exist.
Settlement Type
In India (NSE/BSE): Most options settle in CASH (not physical delivery). Settlement occurs within 2 days after expiry.
Automatic Exercise
ITM (In-The-Money) options are automatically exercised if held till expiry. No action needed unless you want to square off before expiry.
💡 Pro Tip: Options lose value rapidly as expiry approaches. Theta decay accelerates in the last week. Consider closing positions a few days before expiry to capture remaining time value.
📈 Price Behavior in F&O Trading
Understanding Price Movements
Price behavior in F&O differs from spot market due to unique characteristics:
📊
Volatility Impact
Higher volatility increases option premiums and creates larger intraday swings. Good for options sellers in low IV, good for buyers in high IV.
⏰
Time Decay (Theta)
Option value decreases as expiry approaches. Sellers profit from time decay. Buyers lose value daily if stock doesn't move significantly.
🔄
Convergence to Spot
Futures price converges to spot price as expiry nears. Options converge to intrinsic value. Price gap widens near contract expiry.
💹
Leverage Amplification
Small spot price movements create large % moves in futures/options. A 2% stock move = 20% futures move (with 10x leverage).
🎯
Strike Price Effects
OTM options move faster % wise but have lower absolute value. ATM options have balanced delta. ITM options move like stock.
📉
Bid-Ask Spread
Lower liquidity (low OI) = wider spreads = higher trading costs. Always trade high OI options for better entry/exit.
Low & High Behavior Positioning
| Market Phase | Price Behavior | Best F&O Strategy | Risk Level |
|---|---|---|---|
| Low Volatility Phase | Prices consolidate, small moves, predictable patterns | Sell options (premium collection), covered calls, cash-secured puts | Low-Medium |
| High Volatility Phase | Large swings, breakouts, trending moves | Buy options (long calls/puts), directional futures, long straddles | High |
| Uptrend Phase | Higher lows, strong buying pressure, resistance breaks | Long calls, bull spreads, long futures, protective puts | Low-Medium |
| Downtrend Phase | Lower highs, strong selling, support breaks | Long puts, bear spreads, short futures, protective calls | Low-Medium |
| Reversal Phase | Sudden momentum change, high volume, key levels broken | Straddles, strangles, aggressive directional plays | Very High |
Reading Live Trading Data in F&O
Key Data Points to Monitor:
1. Bid-Ask Spread: Wide spread = poor liquidity. Choose tight spreads.
2. Open Interest (OI): Check OI trend - increasing OI = increasing conviction. Decreasing = exit likely.
3. Volume: High volume at support/resistance = likely to hold. Low volume = breakout risk.
4. Greeks:
5. Option Chain: Study put-call ratio. Extreme ratios signal potential reversals.
6. Max Pain: Strike price where most options expire worthless. Market often gravitates here.
1. Bid-Ask Spread: Wide spread = poor liquidity. Choose tight spreads.
2. Open Interest (OI): Check OI trend - increasing OI = increasing conviction. Decreasing = exit likely.
3. Volume: High volume at support/resistance = likely to hold. Low volume = breakout risk.
4. Greeks:
- Delta: Closer to expiry date, monitor delta change. High delta near resistance.
- Theta: Near expiry, theta accelerates. Option loses ₹X per day.
- IV: Volatility spikes before earnings/events. Premiums inflate.
5. Option Chain: Study put-call ratio. Extreme ratios signal potential reversals.
6. Max Pain: Strike price where most options expire worthless. Market often gravitates here.
Position Behavior - Price Action Analysis
Scenario 1: Low to High Volatility Shift
Setup: Stock trading in ₹100-105 range for 3 weeks (low vol). Buy 1000 shares. VIX at 12.Price Action: Breakout to ₹110 on earnings
Position Behavior:
- Call option (105 strike): Moves from ₹2 → ₹6 (200% gain) despite only 5% stock move
- Future contract: ₹500 profit on ₹100k margin (0.5% return)
- Volatility spike amplifies option moves more than futures
Scenario 2: Time Decay in Final Week
Setup: Hold 1 Put Option (100 strike, ₹5 premium, 7 days to expiry)Stock Price: Stays at ₹102 (unchanged)
Position Behavior:
- Day 1 (7 days left): Put worth ₹3.50 (premium decay of ₹1.50)
- Day 2 (6 days left): Put worth ₹2.80 (additional decay of ₹0.70)
- Final day: Put worth ₹0 (expires worthless, complete loss)
- Key: Time decay accelerates exponentially in final week
Scenario 3: Convergence Near Expiry
Setup: Nifty Futures trading at 20,100 | Stock at ₹100 | Call option (105 strike)One Day Before Expiry:
- Stock at ₹106: Call worth exactly ₹1 (106 - 105) - intrinsic value only
- Futures at 20,099: Converged almost fully to spot
- Key: No time value remains, only intrinsic value
⚠️ Risk Management in F&O
Types of Risks in Derivatives
| Risk Type | Description | Mitigation |
|---|---|---|
| Market Risk | Adverse price movement against position | Stop loss, position sizing, hedging |
| Leverage Risk | Amplified losses due to leverage | Limit leverage to 5-10x max, maintain margin buffer |
| Liquidity Risk | Cannot exit position at desired price | Trade only high OI contracts, avoid extreme strikes |
| Time Decay Risk | Option loses value as expiry approaches | Sell options for theta positive, close before expiry |
| Volatility Risk | IV changes hurt option positions | Monitor IV, reduce size before earnings/events |
| Gap Risk | Price gaps over weekend/events, stop loss not triggered | Reduce size before gap events, use wider stops |
Risk Levels
🟢 LOW
Covered calls, protective puts, short options with defined risk
🟡 MEDIUM
Long options, directional futures, spreads
🔴 HIGH
Short options, high leverage futures, naked positions
Position Sizing Formula
💰 Risk Management Position Sizer
Daily Risk Checklist
✓ Before Trading:
• Check margin available vs. position size
• Set stop loss BEFORE entering trade
• Verify OI and spread of option contracts
• Check if earnings/events scheduled today
✓ During Trading:
• Monitor position P&L every 15 minutes
• Move stop loss to breakeven once profitable
• Take partial profits at targets
• Avoid revenge trading after losses
✓ Before Market Close:
• Book profits if risk/reward unfavorable
• Close positions that lost money
• Check next day's events and gaps
• Review margin status for overnight positions
• Check margin available vs. position size
• Set stop loss BEFORE entering trade
• Verify OI and spread of option contracts
• Check if earnings/events scheduled today
✓ During Trading:
• Monitor position P&L every 15 minutes
• Move stop loss to breakeven once profitable
• Take partial profits at targets
• Avoid revenge trading after losses
✓ Before Market Close:
• Book profits if risk/reward unfavorable
• Close positions that lost money
• Check next day's events and gaps
• Review margin status for overnight positions
Common Risk Mistakes to Avoid
❌ Over-Leverage: Using leverage beyond risk tolerance. Lose margin → position liquidated
❌ No Stop Loss: Hoping price recovers. Losses spiral out of control
❌ Illiquid Options: Trading very low OI strikes. Cannot exit at desired price
❌ Holding Through Expiry: Holding short options till expiry. Automatic exercise surprises
❌ Averaging Down: Adding to losing positions. Multiplies losses
❌ Emotional Trading: Trading based on fear/greed instead of plan
❌ No Stop Loss: Hoping price recovers. Losses spiral out of control
❌ Illiquid Options: Trading very low OI strikes. Cannot exit at desired price
❌ Holding Through Expiry: Holding short options till expiry. Automatic exercise surprises
❌ Averaging Down: Adding to losing positions. Multiplies losses
❌ Emotional Trading: Trading based on fear/greed instead of plan