The document provides a summary of derivative market activity in India for July 29, 2010. Key points include:
- Open interest for Nifty futures decreased slightly while Minifity futures open interest decreased more sharply. Nifty July futures closed at a discount.
- Implied volatility increased and total open interest in the market was over Rs. 1.72 trillion with stock futures open interest at Rs. 44,894 crore.
- Rollover percentages for various contracts like Nifty, Banknifty were over 60%.
- Some stocks like Reliance, Aban saw increases in open interest while others like Samrudhhi, EKC saw decreases.