Sebi Enhances Volatility Management with Revised Dynamic Price Bands for Derivatives

In a significant move to enhance volatility management and reduce information asymmetry in the derivatives segment, the Securities and Exchange Board of India (Sebi) announced modifications to the guidelines for dynamic price bands for scrips. This adjustment aims to provide a more robust framework for managing fluctuations and ensuring a fair trading environment.

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Under the existing system, scrips in the derivatives segment that are excluded from the requirement of static price bands are subject to dynamic price bands or operating ranges, established by stock exchanges. These bands initially set at 10 per cent of the previous day's closing price, could be adjusted by 5 per cent during the trading day under specific conditions. These conditions include a minimum of 25 trades and involvement of 5 unique client codes (UCCs) on each side of the transaction at or above 9.90 per cent of the price band.

However, based on recent feedback, Sebi has decided to tighten these conditions. The revised guidelines now stipulate that for any adjustment to be made, there must be at least 50 trades, involving 10 unique UCCs and 3 trading members on each side. This change is expected to ensure that price band adjustments are a result of genuine market movements rather than manipulative practices.

The regulator has also refined the rules regarding the cooling-off period following each adjustment. Initially set at 15 minutes, this period will now vary depending on the number of adjustments made during the day. For the first two adjustments, the cooling-off period remains at 15 minutes (reduced to 5 minutes if adjustments occur in the last half-hour of trading). Subsequent adjustments will see this period extended to 30 minutes for the next two adjustments and then to 60 minutes for any further adjustments.

Additionally, Sebi has introduced measures to manage volatility more effectively. When a price band is adjusted in one direction, the opposite band will also be adjusted accordingly. This measure aims to reduce volatility by ensuring that orders are placed closer to the current market price. Furthermore, during the cooling-off period, options contracts will have a temporary price floor or ceiling applied, based on the last traded or theoretical price. This is intended to facilitate hedging or closing positions before any adjustment in the underlying scrip's price band.

Stock exchanges have been directed to notify trading members and clients about any cancelled orders due to these new rules and ensure compliance with the updated guidelines. Sebi's circular outlines that these changes will be implemented in a phased manner starting from June 3, marking a significant step towards creating a more stable and transparent market environment.

This initiative by Sebi is part of its ongoing efforts to enhance market integrity and protect investors' interests by ensuring that trading activities reflect genuine market dynamics. By adjusting dynamic price bands more stringently and extending cooling-off periods, Sebi aims to mitigate abrupt market movements and provide a more predictable trading atmosphere.