NIFTY Option Chain Cheat Sheet

1 Basic Meanings

PUT SIDE (PE)

🛡️

High Put OI = Support Zone

⬆

Put OI Increasing = More Put Writing Bullish / Support Forming

⬇

Put OI Decreasing = Long Unwinding Bearish / Support Weakening

CALL SIDE (CE)

🛡️

High Call OI = Resistance Zone

⬆

Call OI Increasing = More Call Writing Bearish / Resistance Forming

⬇

Call OI Decreasing = Short Covering Bullish / Resistance Weakening

? What is What

OI

Existing positions already in the market. Money parked.

Volume

Today's trading activity. Fresh action.

Price

Market direction & strength. The final decision maker.

2 Key Levels

RESISTANCE CE OI High ⛰️

Current price

SUPPORT PE OI High 🛡️

💡 Market = a road: Support is the floor (PE OI High), Resistance is the ceiling (CE OI High). Price moves between them.

3 OI + Price Action — Master Table

Market Movement	Call OI	Put OI	Meaning	Interpretation	Market View
↗ Price ↑	↓ Decreasing	↑ Increasing	Bullish Strong	Short covering in Calls + Put writing	🐂 Bullish
↗ Price ↑	↑ Increasing	↑ Increasing	Bullish but Resistance Forming	Call writing at higher levels (Caution)	🐂 Mild Bullish
↘ Price ↓	↑ Increasing	↓ Decreasing	Bearish Strong	Call writing + Put unwinding	🐻 Bearish
↘ Price ↓	↓ Decreasing	↑ Increasing	Bearish Losing Strength	Support still holding but selling pressure	🐻 Weak Bearish
↔ Price ↔	↑ Increasing	↑ Increasing	Range Bound	Both sides writing options (No clear direction)	↔ Neutral / Range
🚀 Price ↑ Strongly	↓ Decreasing	—	Short Covering Rally	Traders buying back Calls (Fuel for upmove)	🚀 Strong Bullish
⚠ Price ↓ Strongly	—	↓ Decreasing	Long Unwinding / Support Break	Panic selling / Support broken	🔻 Strong Bearish

+V OI + Price + Volume — Full Conviction Read

OI tells you if positions are being added or unwound, Price gives direction, and Volume confirms conviction. All three together = the real story (2 × 2 × 2 = 8 cases).

Price	OI	Volume	Meaning	Interpretation	Market View
↑ Up	↑ Up	↑ High	Long Buildup — Strong	Fresh money buying with conviction; trend backed by new longs	🐂 Strong Bullish
↑ Up	↑ Up	↓ Low	Long Buildup — Weak	Longs added but thin participation — rally lacks fuel	🐂 Mild Bullish
↑ Up	↓ Down	↑ High	Short Covering — Strong	Bears buying back aggressively; sharp pop, often temporary	🚀 Bullish (temp.)
↑ Up	↓ Down	↓ Low	Short Covering — Weak	Minor low-conviction bounce; no fresh longs entering	↔ Neutral–Bullish
↓ Down	↑ Up	↑ High	Short Buildup — Strong	Fresh aggressive shorts with conviction; downtrend intact	🐻 Strong Bearish
↓ Down	↑ Up	↓ Low	Short Buildup — Weak	Shorts added on light volume — weak follow-through	🐻 Mild Bearish
↓ Down	↓ Down	↑ High	Long Unwinding — Strong	Longs exiting in force / panic; supply heavy on the tape	🔻 Bearish
↓ Down	↓ Down	↓ Low	Long Unwinding — Weak	Quiet profit booking; selling pressure fading, may base out	↔ Neutral–Bearish

Rule of thumb: same Price + OI signal, but high volume = conviction (act) and low volume = doubt (wait). Volume never gives direction on its own — it only confirms or weakens what Price & OI already say.

4 Volume Interpretation

High Volume In	Price Action	What It Means
📊 Call Volume High	Price Rising ↑	Call buying OR Short covering (Bullish)
📊 Call Volume High	Flat / Sideways ↔	Call writing (Caution / Range)
📊 Call Volume High	Price Falling ↓	Call writing (Bearish)
📊 Put Volume High	Price Falling ↓	Put buying (Bearish)
📊 Put Volume High	Price Rising ↑	Put writing (Bullish / Support)
📊 Put Volume High	Flat / Sideways ↔	Put writing (Range Bound)

⭐ High Volume = many contracts traded today. It does NOT tell whether buyers or sellers are stronger.

5 Strike-wise Reading — NIFTY Spot 25,100

Strike	PE OI	PE ΔOI	CE OI	CE ΔOI	Interpretation
24,900	High	↑	Low	↓	Strong Support Below
25,000	Very High	↑	Medium	↓	Major Support (Heavy Put OI)
25,100	High	↑	High	↑	Battle Zone (Current Fight)
25,200	Medium	↓	High	↑	Major Resistance Above
25,300	Low	↓	Very High	↑	Strong Resistance (Heavy Call OI)

How to read: High Put OI below price = Support · High Call OI above price = Resistance · Price likely moves between Support & Resistance.

Δθ The Option Greeks — What Moves Premium

Greek	Measures	Typical Range	What It Tells You
Δ Delta	Premium change per ₹1 move in spot	Call 0 → +1 · Put 0 → −1	≈ Probability of expiring ITM. ATM ≈ 0.5. Hedge ratio — Delta 0.5 means the option moves ₹0.50 for every ₹1 in the underlying.
Γ Gamma	Rate of change of Delta per ₹1 move	Highest at ATM, near expiry	How fast Delta accelerates. High Gamma = premium swings violently → great for buyers on a move, dangerous for sellers near expiry.
θ Theta	Premium lost each day (time decay)	Always negative for buyers	The daily "rent" a buyer pays. Accelerates sharply in the last week. Sellers earn Theta — it's their income.
V Vega	Premium change per 1% move in IV	Highest ATM, longer expiry	Sensitivity to volatility. Rising IV inflates both Calls & Puts (good for buyers); IV crush after events deflates them (good for sellers).
ρ Rho	Premium change per 1% move in interest rate	Small for short expiries	Least important intraday. Higher rates lift Calls, weigh on Puts. Matters mainly for long-dated options.

🟢 Option Buyer

• Wants big & fast moves — long Gamma
• Fights the clock — pays Theta daily
• Wins if IV rises (long Vega)
• Limited risk (premium), unlimited reward

🔴 Option Seller / Writer

• Wants flat / slow markets — short Gamma
• Earns Theta daily (time decay = income)
• Wins if IV falls (short Vega / IV crush)
• Limited reward (premium), large risk

⭐ Buyer's enemy = Theta (time) · Seller's enemy = Gamma (a sudden move). Near expiry, Theta & Gamma both spike — premiums melt fast but a breakout can explode against writers.

6 Intraday Quick Rules

🐂 Bullish Setup

• Price ↑
• Put OI ↑
• Call OI ↓
• PCR Rising

🐻 Bearish Setup

• Price ↓
• Call OI ↑
• Put OI ↓
• PCR Falling

↔ Range-Bound

• Call OI ↑
• Put OI ↑
• Price stuck in range

PCR (Put-Call Ratio) = Total PE OI / Total CE OI  •  PCR ↑ = Bearish  |  PCR ↓ = Bullish

7 One-Screen Memory Trick

CALLS (CE)

🧱 OI ↑ = Wall Above

🚧 OI ↓ = Wall Breaking

PUTS (PE)

🛡️ OI ↑ = Floor Below

💥 OI ↓ = Floor Cracking

VOLUME & OI

⚔️ Volume = where the fight is

💰 OI = where the money is parked

Important Order to Analyze

1 Price Action → 2 Change in OI → 3 Volume → 4 PCR

❌ NOT: OI alone → Trade

🎯 Extra Tips

• Combine OI + Volume + Price for high probability.
• Don't predict — react to what the market shows.
• Trade with the trend, not against it.