How to Pick Strikes for Iron Condor on Nifty

The Strike Selection Problem

The iron condor has 4 strikes to choose: 2 short strikes (inner) and 2 long strikes (outer wings). Most traders pick strikes randomly or based on round numbers. A systematic approach dramatically improves your win rate.

The goal is to place short strikes far enough away that the market is unlikely to reach them, but close enough that you collect meaningful premium. The wing width determines your max loss.

Method 1: Delta-Based Selection

Sell options with 15-20 delta. A 16 delta option has roughly an 84% probability of expiring OTM. This gives you a statistical edge while still collecting reasonable premium.

For Nifty weeklies: at 16 delta, short strikes are typically 150-250 points OTM on each side. Place wings 100-200 points beyond the short strikes.

Pro tip: use Quintal Mind's live Greeks to find the exact strikes matching your target delta, since delta changes throughout the day.

Method 2: Expected Move

Calculate the expected move: Straddle price × 0.85. If the ATM straddle is ₹350, the expected move is approximately 298 points. Place short strikes just outside this range.

This method adapts automatically to current volatility — when IV is high, strikes go wider; when IV is low, they come closer. It's self-calibrating.

For weekly Nifty iron condors, placing short strikes at 1.0-1.2x the expected move gives the best balance between probability and premium.

Method 3: Open Interest Levels

Check the option chain for strikes with the highest call OI (resistance) and highest put OI (support). Place your short call at or just above the max call OI strike, and short put at or just below the max put OI strike.

The logic: these levels represent the collective bet of all market participants. Big writers don't expect the market to breach these levels — and if enough writers believe this, it becomes self-fulfilling.

Wing Width — How Far to Place Protection

Narrow wings (100 points): cheaper protection, better win rate, but lower premium collected. Good for weekly trades.

Wide wings (200 points): more expensive protection, lower win rate, but much higher premium. Better for monthly trades.

The sweet spot for Nifty weekly iron condors is 150-point wings. This gives you a good risk-reward ratio while keeping margin requirements reasonable.