Whalesbook
The Securities & Exchange Board of India (SEBI) is reportedly considering a significant regulatory adjustment to ease margin requirements for longer-dated derivative contracts. This initiative is driven by a desire to foster a more balanced derivatives market, moving away from the overwhelming dominance of weekly contracts which currently capture approximately 90% of trading volumes on Indian exchanges.
Representations from global market participants have highlighted that higher margin requirements are a primary obstacle to the popularity of medium- and long-term derivative contracts. Currently, these contracts are subject to an Extreme Loss Margin (ELM) in addition to the standard Value at Risk (VaR) margin. Osho Krishan, chief manager at Angel One, explained that the ELM is applied because longer-term contracts inherently carry an extended risk horizon and a greater potential for volatility, a factor accounted for by the 'theta effect' (time decay).
Experts note that strategies like calendar spreads or pairs trading, which involve holding positions across different expiry dates or long/short positions in related stocks, become significantly more expensive due to the ELM being applied to multiple legs of the trade.
This potential policy change, alongside recent initiatives like the National Stock Exchange of India Limited's (NSE) introduction of a pre-open session for equity derivatives, signals SEBI's intent to refine market mechanisms. Tuhin Kanta Pandey, chairman of SEBI, has also spoken about deepening the cash equities market and improving inter-linkages between cash and derivatives markets, underscoring a broader regulatory agenda.
Impact
This development could lead to greater diversification in derivative trading strategies, attract more institutional investors interested in hedging or speculating over longer periods, and potentially improve liquidity in longer-dated contracts, making risk management more efficient for market participants.
Rating: 7/10
Difficult Terms Explained:
Extreme Loss Margin (ELM): An additional margin charged by exchanges on top of the basic margin, designed to cover potential losses from severe, unexpected market movements that standard risk models might not fully account for.
Value at Risk (VaR) Margin: A risk management measure used to quantify the level of financial risk within a firm or investment portfolio. It estimates the maximum potential loss over a given time period at a specified confidence level.
Theta Effect: In options trading, theta measures the rate of decline in an option's value over time. For longer-term contracts, the larger time value means a greater potential for loss due to time decay, influencing margin calculations.
Calendar Spread: A trading strategy involving the simultaneous purchase and sale of futures or options contracts of the same underlying asset but with different expiration dates.
Pairs Trading: A strategy that involves taking offsetting long and short positions in highly correlated assets, such as two stocks in the same industry, to profit from relative price movements.