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What is Rollover and how to analyze it in F&O expiry — complete Hindi guide. Rollover data interpretation, trading strategy all together.
Published by The Retail Trader · AUG 15, 2026 · Features
What is Rollover and how to analyze it in F&O expiry — complete Hindi guide. Rollover data interpretation, trading strategy all together.
Rollover means shifting the existing F&O position to the next expiry. When the current month's contract is about to expire, traders transfer their positions to the next month's contract.
Simple definition: > Rollover = Moving the position from old expiry to new expiry. Just like you shift the time while changing houses.
Rollover data tells what traders are expecting next month:
Keep these four points in mind:
• High rollover + Price up — Bullish continuation
• High rollover + Price down — Bearish continuation
• Low rollover + Price up — Rally weak, profit booking
• Low rollover + Price down — Selling exhausted, reversal possible
Keep these six points in mind:
• Rollover % = (Next month OI / Total OI) × 100
• Example:
• Nifty August expiry OI: 80,00,000
• Nifty September OI: 60,00,000
• Rollover: (60,00,000 / 80,00,000) × 100 = 75%
Historical Rollover Levels:
• > 75% — High rollover — positions continuing
• 60-75% — Normal rollover
• 45-60% — Low rollover — positions closing
• < 45% — Very low — significant position unwinding
Setup:
• Nifty is going up (monthly rally)
• Rollover > 70% (positions shifting to next month)
• Meaning: Bulls are confident, trend will continue
Action: Hold longs. Probability of going up in next month also high.
Setup:
• Nifty is going down (monthly fall)
• Rollover < 50% (positions closing, shifting are not happening)
• Meaning: Bears are closing their positions, reversal possible
Action: Watch for bottom formation. BUY on reversal confirmation.
Premium difference between current and next month contract:
Keep these eight points in mind:
• Rollover Cost = Next Month Premium - Current Month Premium
• Example:
• Nifty 20,000 CE (August): ₹100
• Nifty 20,000 CE (September): ₹180
• Rollover Cost: ₹80
• Meaning: For position shift you will have to pay ₹ 80 extra.
High rollover cost = Market expects volatility (events coming) Low rollover cost = Market expects stability
Keep these four points in mind:
• Cost — Rolloled Position: Rollover cost (spread), Fresh Position: Full premium
• Sentiment — Rolloled Position: Continuing conviction, Fresh Position: New conviction
• Risk — Rolloled Position: Carried from previous month, Fresh Position: Fresh risk
• Analysis — Rolloled Position: Trend confirmation, Fresh Position: New setup
Keep these points in mind:
• 📌 ROLLOVER QUICK REFERENCE
• ROLLOVER LEVELS:
• 📊 > 75% = High (positions continuing)
• 📊 60-75% = Normal
• 📊 45-60% = Low (positions closing)
• 📊 < 45% = Very low (unwinding)
• BULLISH SIGNAL:
• ✅ Rising market + High rollover (>70%)
• ✅ Rising market + Rising rollover %
• ✅ Long positions rolling over
• BEARISH SIGNAL:
• ❌ Falling market + High rollover
• ❌ Falling market + Rising put rollover
• ❌ Short positions rolling over
• REVERSAL SIGNAL:
• 🔥 Falling market + Low rollover (<50%)
• 🔥 Rising market + Low rollover (<50%)
• 🔥 Extreme rollover cost + Direction change
• ANALYSIS:
• 📊 Rollover % = Next month OI / Total OI × 100
• 📊 Rollover cost = Next month premium - Current premium
• 📊 High cost = Event risk expected
• 📊 Low cost = Stability expected
Keep these four points in mind:
• How Does F&O Expiry Work?
• How to Read an Option Chain?
• With Open Interest Price
• What Are Option Greeks?
The Retail Trader — educational market analysis. Not investment advice.
This article is for educational purposes only. It is not a buy or sell recommendation, a claim of guaranteed returns, or advisory guidance. Exchanges, SEBI and RBI change rules, rates and procedures from time to time, so verify every figure with your broker or an official source.