Disclaimer: This content is for educational purposes only, based on data as of 1 PM IST on March 28, 2025. This is not financial advice. Trading involves risks. Always do your own analysis and manage risk before trading.
Welcome to this today’s F&O Insights! We’re breaking down Futures & Options (F&O) data to help you spot market trends, whether you’re just starting or sharpening your skills. This edition focuses on new expiries launched for 24 April 2025, giving you a fresh lens on trader moves.
Section 1: Understanding Stock Activity Through OI Changes
Here’s what’s moving in key stocks based on price changes and Open Interest (OI) shifts.
| Underlying | Price | Change | Call OI Chg | Put OI Chg | Call Explanation | Put Explanation |
|---|---|---|---|---|---|---|
| BAJFINANCE | 8926 | -0.89% | 1628 | 1297 | Short Buildup | Short Buildup |
| HDFCBANK | 1815.35 | -0.54% | 2612 | 929 | Short Buildup | Short Buildup |
| HINDUNILVR | 2262.45 | 0.78% | 2106 | 1490 | Long Buildup | Long Buildup |
| INFY | 1576.85 | -1.67% | 6121 | 2345 | Short Buildup | Short Buildup |
| ITC | 409.4 | -0.01% | 2601 | 1144 | Short Buildup | Short Buildup |
| KOTAKBANK | 2164.6 | 1.71% | 3111 | 3158 | Long Buildup | Long Buildup |
| MARUTI | 11523 | -1.70% | 6358 | 2468 | Short Buildup | Short Buildup |
| RELIANCE | 1275 | -0.22% | 7821 | 5436 | Short Buildup | Short Buildup |
| SBIN | 769.5 | -0.39% | 3989 | 2612 | Short Buildup | Short Buildup |
| TCS | 3607.1 | -1.21% | 2568 | 2540 | Short Buildup | Short Buildup |
What Do These Terms Mean?
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Long Buildup: OI rises with price moving favorably—up for calls (bullish) or down for puts (bearish). Traders are buying options, expecting that direction.
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Short Buildup: OI rises, but price moves against buyers—down for calls (bearish) or up for puts (bullish). Suggests option selling.
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Short Covering: OI drops with price rising (for calls) or falling (for puts). Short sellers buy back options, fueling the move.
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Long Unwinding: OI drops with price falling (for calls) or rising (for puts). Long holders exit, signaling doubt.
Quick Take: Widespread Short Buildup (e.g., MARUTI, TCS) with price drops suggests bearish sentiment—watch for support levels!
Section 2: Spotlight on High-Activity Options
These options show notable trading volume relative to OI, pointing to strikes traders are eyeing.
| Contract | Volume/OI Ratio | Explanation | VOLUME | OI | IV |
|---|---|---|---|---|---|
| BAJFINANCE 8800 PE 24 Apr 2025 | 2.47 | Long Buildup | 2561 | 1036 | 26.25 |
| BAJFINANCE 9000 CE 24 Apr 2025 | 2.25 | Long Buildup | 5356 | 2381 | 24.85 |
| HDFCBANK 1820 PE 24 Apr 2025 | 3.64 | Long Buildup | 5016 | 1379 | 19.13 |
| HDFCBANK 1920 CE 24 Apr 2025 | 2.85 | Long Buildup | 3084 | 1082 | 18.65 |
| HINDUNILVR 2300 CE 24 Apr 2025 | 3.27 | Long Buildup | 8296 | 2540 | 19.09 |
| HINDUNILVR 2260 CE 24 Apr 2025 | 2.62 | Long Buildup | 3048 | 1163 | 18.86 |
| INFY 1580 PE 24 Apr 2025 | 3.01 | Long Buildup | 4017 | 1336 | 30.42 |
| INFY 1580 CE 24 Apr 2025 | 2.63 | Long Buildup | 2847 | 1082 | 28.25 |
| ITC 415 CE 24 Apr 2025 | 2.11 | Long Buildup | 2716 | 1289 | 18.13 |
| KOTAKBANK 2180 CE 24 Apr 2025 | 2.12 | Long Buildup | 2168 | 1025 | 18.87 |
| KOTAKBANK 2200 CE 24 Apr 2025 | 2.01 | Long Buildup | 4364 | 2172 | 19.1 |
| MARUTI 11700 CE 24 Apr 2025 | 3.48 | Long Buildup | 3529 | 1015 | 19.89 |
| MARUTI 11500 PE 24 Apr 2025 | 3.24 | Long Buildup | 3368 | 1040 | 22.83 |
| RELIANCE 1340 CE 24 Apr 2025 | 2.29 | Long Buildup | 3963 | 1732 | 20.73 |
| RELIANCE 1310 CE 24 Apr 2025 | 2.26 | Long Buildup | 3942 | 1747 | 20.64 |
| SBIN 790 CE 24 Apr 2025 | 2.05 | Long Buildup | 3425 | 1667 | 19.21 |
| TCS 3600 PE 24 Apr 2025 | 2.32 | Long Buildup | 5917 | 2552 | 24.47 |
How to Understand Volume/OI Ratio
- What It Is: Compares today’s trading volume to existing OI. A higher ratio means more new trades.
- What It Suggests:
- Above 2: Notable activity—traders see this strike as a key level (e.g., MARUTI’s 3.48 at 11700 CE).
- Above 3: Strong interest, often tied to expectations (e.g., HDFCBANK’s 3.64 at 1820 PE).
- Below 1: Quiet—positions are likely being held or closed.
- Why It Matters: High ratios highlight “hot” strikes—potential support or resistance zones.
Final Thoughts
F&O data lights the way—OI shifts reveal trader sentiment, and Volume/OI Ratios (like MARUTI’s 3.48) spotlight key levels. Banking’s mixed, IT’s weak, and consumer goods shine. Pair these clues with charts to stay ahead!
Happy trading—see you next time!
Disclaimer: This content is for educational purposes only, based on data as of 1 PM IST on March 28, 2025. This is not financial advice. Trading involves risks. Always do your own analysis and manage risk before trading.