Option Greeks kya hain aur kaise kaam karte hain — Delta, Gamma, Theta, Vega sab aasan bhasha mein samjhein. Hindi trading guide.
Published by The Retail Trader · AUG 12, 2026 · Features
Option Greeks kya hain aur kaise kaam karte hain — Delta, Gamma, Theta, Vega sab aasan bhasha mein samjhein. Hindi trading guide.
Option Greeks wo 5 factors hain jo batate hain ki option ki price kaise change hogi jab market conditions badlein:
Ye paanch baatein dhyaan mein rakho:
• Delta (Δ) — Price ka effect
• Gamma (Γ) — Delta ka change
• Theta (Θ) — Time ka effect (decay)
• Vega (ν) — Volatility ka effect
• Rho (ρ) — Interest rate ka effect
Simple language mein: Greeks batate hain ki agar Nifty 100 points upar jaaye, ya 1 din beet jaaye, ya volatility badh jaaye — toh tumhare option ki price kitni badhegi ya giregi.
Agar underlying (Nifty/stock) ₹1 badhe → option kitna badhega/girega.
Values:
• Deep ITM Call — Delta Range: 0.8-1.0, Meaning: Stock jaisa move karega
• ATM Call — Delta Range: 0.5, Meaning: Half move karega
• Deep OTM Call — Delta Range: 0.0-0.2, Meaning: Barely move karega
• ITM Put — Delta Range: -0.8 to -1.0, Meaning: Ulti direction mein full move
• ATM Put — Delta Range: -0.5, Meaning: Ulti direction mein half move
Practical Use:
• Nifty at 20,000, 20,200 CE ka Delta = 0.6
• Nifty 100 points upar jaaye → Option ka price ~₹60 badhega
• Nifty 100 points neeche jaaye → Option ka price ~₹60 girega
Delta approximately probability hai ki option ITM expire hoga:
• Delta 0.5 = 50% chance ITM expire hoga
• Delta 0.3 = 30% chance
• Delta 0.8 = 80% chance
Ye bahut useful hai — delta dekhte hi samajh aa jaata hai ki option kitna "in the money" hai.
Delta kitna change hoga jab underlying ₹1 badhe.
Simple Example:
• Nifty 20,000 CE, Delta = 0.5, Gamma = 0.02
• Nifty 100 points upar → Delta badh ke 0.52 ho jayega
• Nifty 100 points neeche → Delta ghir ke 0.48 ho jayega
ATM options ka Gamma sabse zyada hota hai. Matlab ATM options ka delta sabse fast change hota hai.
Gamma risk: ATM options near expiry pe bahut volatile hain — chhote move mein delta dramatic change hota hai. Ye sellers ke liye risk hai.
Advanced traders gamma ka use karke profit banate hain:
• ATM option buy karo (long gamma)
• Jab price upar jaaye → delta badh raha hai → thoda underlying bech do (hedge)
• Jab price neeche jaaye → delta ghat raha hai → thoda underlying kharido
• Ye repeated hedging se profit
Har din beetne pe option ki price kitni giregi (sab factors same rahein toh).
Options ka time value har din girta hai. Ye option BUYERS ke liye enemy hai aur option SELLERS ke liye friend.
Example:
• Nifty 20,200 CE, Price = ₹100, Theta = -5
• Kal tak agar Nifty same rahe → Option ₹95 ho jayega
• 5 din baad → Option ₹75 ho jayega (sirf time decay se)
Last 7 days mein theta sabse fast girta hai. ATM options ka theta curve:
Ye paanch baatein dhyaan mein rakho:
• 30 days — ~₹1-2/day
• 15 days — ~₹3-4/day
• 7 days — ~₹5-7/day
• 3 days — ~₹10-15/day
• Expiry day — ~₹20-30+/day
Matlab: Option buyers ke liye last week bahut dangerous hai. Option sellers last week mein sabse zyada profit banate hain.
Theta Strategy:
• Buy options early (20-30 days before expiry) — theta slow hai
• Sell options near expiry (last 7 days) — theta fast hai
• Avoid holding ATM options overnight near expiry — theta bahut khaata hai
Agar implied volatility (IV) 1% badhe → option ki price kitni badhegi.
Example:
• Nifty 20,200 CE, Price = ₹100, Vega = 8
• IV 2% badh jaaye → Option ₹116 ho jayega (₹100 + 2×8)
• IV 2% gire → Option ₹84 ho jayega
Earnings/results se pehle IV bahut badh jaata hai. Results ke baad IV suddenly girta hai — chahe stock upar jaaye ya neeche.
Matlab: Results se pehle option buy karna EXPENSIVE hai (high IV). Results ke baad IV crush se option ki price girti hai even if stock moves in your direction.
Best strategy: Results se pehle SELL options (high IV premium), results ke baad BUY back (IV crush se profit).
India VIX Indian market ka implied volatility index hai:
• VIX high (>20): Options expensive hain (high premium)
• VIX low (<12): Options cheap hain (low premium)
• VIX rising: Buying options better
• VIX falling: Selling options better
Interest rate 1% badhe → option ki price kitni change hogi.
Rho ka impact bahut chhota hai compared to delta, theta, aur vega. Most traders Rho ignore karte hain.
Exception: Long-term options (LEAPS) ya high interest rate environment mein Rho matter karta hai.
RBI jab rate badhta hai → Call options slightly expensive, Put options slightly cheap. But effect minimal hai (1-2% of option price).
Ye baatein dhyaan mein rakho:
• 📌 GREEKS FOR OPTION BUYERS
• DELTA (Δ):
• 📊 ITM option lo → Delta 0.7-0.8 (zyada move)
• 📊 ATM option lo → Delta 0.5 (balanced)
• 📊 OTM option lo → Delta 0.2-0.3 (cheap, less likely)
• THETA (Θ):
• ⚠️ Time tumhara DUSHMAN hai
• ⚠️ Options 20-30 din pehle kharido (theta slow)
• ⚠️ Last 7 din mein mat hold karo (theta fast)
• ⚠️ ATM options ka theta sabse zyada
• VEGA (ν):
• ✅ IV low ho tab kharido (cheap premium)
• ✅ IV high ho tab becho (expensive premium)
• ✅ VIX < 12 = Good time to BUY
• ✅ VIX > 20 = Good time to SELL
Ye baatein dhyaan mein rakho:
• 📌 GREEKS FOR OPTION SELLERS
• DELTA (Δ):
• 📊 ATM sell karo → Delta 0.5 (balanced risk)
• 📊 OTM sell karo → Delta 0.2-0.3 (high probability)
• 📊 Delta-neutral strategies use karo
• THETA (Θ):
• ✅ Time tumhara DOST hai
• ✅ Last 7 din mein sell karo (theta fast decay)
• ✅ ATM options pe sabse zyada theta milta hai
• ✅ Calendar spreads banao (sell near-term, buy far-term)
• VEGA (ν):
• ✅ IV high ho tab sell karo (mehenga premium)
• ✅ IV crush se profit (results/events ke baad)
• ✅ Iron condors, credit spreads use karo
• GAMMA (Γ):
• ⚠️ Near expiry ATM pe gamma bahut high hai
• ⚠️ Chhote moves mein delta dramatic change hoga
• ⚠️ Gamma risk manage karo with position sizing
Setup: Nifty at 20,000. You buy 20,200 CE (14 days to expiry).
Ye chaar baatein dhyaan mein rakho:
• Delta — Value: 0.45, Meaning: Nifty 100 upar → Option ~₹45 badhega
• Gamma — Value: 0.03, Meaning: Delta 0.45 se 0.48 ho jayega
• Theta — Value: -6, Meaning: Har din ₹6 girega (time decay)
• Vega — Value: 10, Meaning: IV 1% badhe → Option ₹10 badhega
Scenario 1: Nifty 100 points upar jaaye, 1 din baad:
• Delta profit: +₹45
• Theta loss: -₹6
• Net: +₹39
Scenario 2: Nifty same rahe, 1 din baad:
• Delta profit: ₹0
• Theta loss: -₹6
• Net: -₹6
Scenario 3: Nifty 100 points neeche jaaye, 1 din baad:
• Delta loss: -₹45
• Theta loss: -₹6
• Net: -₹51
Lesson: Option buying mein SIRF tab profit hota hai jab move theta se zyada ho. Isliye buyers ko BIG moves chahiye — chhote moves mein theta kha jaata hai profit.
"Delta 0.5 hai, Nifty 100 upar jaayega toh ₹50 profit" — Nahi! Theta ₹6 daily khaata hai. 5 din hold kiya toh ₹30 theta ne kha liya.
Option buyers ko time decay bahut hurt karta hai. Near expiry ATM options hold karna = slow bleeding.
Near expiry ATM sell kiya, Nifty 200 points upar gaya — delta 0.3 se 0.7 ho gaya. Position size 2x+ ho gaya. Margin call aa sakta hai.
Results se pehle option kharidna = expensive premium. Results ke baad IV crush se option price girti hai even if stock moves in your direction.
Greeks har second change hote hain. Delta badlega jab price badlega (gamma). Theta badlega jab time badlega. Greeks ek snapshot hai — continuously update karo.
Ye paanch baatein dhyaan mein rakho:
• Option Chain Kaise Padhein?
• F&O Expiry Kaise Kaam Karta Hai?
• Implied Volatility Kya Hai?
• Option Buyer Vs Seller Ganit
• Hedging Ki Buniyadi Samajh
The Retail Trader — educational market analysis. Not investment advice.
Ye article sirf educational hai — koi buy ya sell recommendation nahi, koi guaranteed return ka daawa nahi, aur koi advisory nahi. Rules, rates aur mechanics exchange, SEBI aur RBI time-time par badalte hain, isliye har number apne broker ya official source par khud verify karo.