SEBI Revamps ETF Trading Rules: Dynamic Price Bands to Roll Out
In a significant move to enhance market efficiency, the Securities and Exchange Board of India (SEBI) has announced a major overhaul of the trading framework for Exchange Traded Funds (ETFs). The new regulations replace outdated fixed price bands with a dynamic mechanism designed to better reflect the real-time volatility of underlying assets.
Moving from Fixed to Dynamic Price Bands
Currently, ETFs operate under a fixed 20% price band calculated based on the Net Asset Value (NAV) from two trading days prior. SEBI has identified that this T-2 lag creates significant challenges in accurate price discovery, as the bands often fail to track the actual movement of the underlying securities.
Starting September 1, 2026, the regulator will introduce dynamic price bands tailored to different asset classes. For equity ETFs and debt ETFs (excluding overnight and liquid funds), the initial price band will be set at 10%. If the price hits this upper threshold during a trading session, the band will expand in 5% increments, allowing for a maximum cap of 20% after a necessary cooling-off period.
Specialized Rules for Commodity ETFs
Recognizing the unique volatility of precious metals, SEBI has introduced specific parameters for commodity ETFs tracking gold and silver. These funds will initially operate with a tighter 6% price band. To accommodate international commodity price fluctuations, this band can be expanded in stages of 3% depending on market conditions.
Furthermore, to bridge the gap between continuous international commodity trading and the limited window of Indian market hours, SEBI has mandated a pre-open call auction session for gold and silver ETFs. This measure is intended to ensure that domestic ETF prices are more closely aligned with global benchmarks.
Modernizing Base Price Determination
A critical component of this revamp is the shift in how the "base price" for ETFs is calculated. The current reliance on the T-2 NAV is being phased out in favor of more immediate data. Under the new methodology, exchanges will use the previous day's closing price, specifically the Volume-Weighted Average Price (VWAP) calculated during the last 30 minutes of trading.
In instances where no trading occurs during that final 30-minute window, the last traded price will be utilized. If there is no trading data available at all, the latest available NAV will serve as the fallback base price. Looking further ahead, SEBI has directed stock exchanges and mutual funds to work toward using the previous day's closing NAV as the base price by April 1, 2027.
Key Takeaways
- Dynamic Flexibility: ETF price bands are shifting from a fixed 20% limit to a tiered dynamic system (10-20% for equity/debt and 6% for commodities) to better reflect asset volatility.
- Improved Price Discovery: The introduction of pre-open call auctions for gold and silver ETFs and a shift to VWAP-based base pricing will reduce the lag in price discovery.
- Phased Implementation: The dynamic price band rules go into effect on September 1, 2026, while the transition to using the previous day's closing NAV is targeted for April 1, 2027.