SEBI Overhauls ETF Trading Rules: Dynamic Price Bands Coming Soon

The Securities and Exchange Board of India (SEBI) has announced a significant regulatory overhaul for Exchange Traded Funds (ETFs), aimed at enhancing price discovery and market efficiency. By transitioning from fixed to dynamic price bands, the regulator seeks to align ETF trading more closely with the real-time movements of underlying assets.

Moving from Fixed to Dynamic Price Bands

Currently, ETFs operate under a rigid 20% fixed price band based on the Net Asset Value (NAV) from two trading days prior. SEBI has identified that this T-2 lag creates significant challenges, as the fixed bands fail to adequately reflect rapid shifts in the value of underlying securities.

Under the new framework, which commences on September 1, 2026, the mechanism will become more responsive. Equity and debt ETFs (excluding overnight and liquid funds) will start with an initial dynamic price band of 10%. If market volatility pushes prices toward this limit, the band can be expanded in 5% increments up to a maximum of 20% following a cooling-off period.

Tailored Rules for Commodity ETFs

Recognizing the unique volatility of precious metals, SEBI has introduced specific parameters for gold and silver ETFs. Unlike equity funds, these commodity-linked ETFs will start with a narrower initial price band of 6%. To accommodate international market fluctuations, this band can be expanded in stages of 3% based on prevailing market conditions.

To further improve accuracy, SEBI has mandated a pre-open call auction session specifically for gold and silver ETFs. This move addresses a critical gap: while domestic ETFs only trade during Indian market hours, the underlying global commodities trade continuously, often creating price discrepancies.

A New Methodology for Base Price Determination

A major pillar of this revamp is the shift in how the base price is calculated. The outdated T-2 NAV method will be replaced by the previous day's closing price. This closing price will be determined using the Volume-Weighted Average Price (VWAP) calculated during the final 30 minutes of the previous day's trading session.

In scenarios where no trades occur during that final 30-minute window, the last traded price will be utilized. If there is a total absence of trading, 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.

Strengthening Market Integrity

These changes are not arbitrary; they stem from formal recommendations by stock exchanges, the Secondary Market Advisory Committee, and extensive public consultations. By reducing the lag in price discovery and allowing for flexible volatility management, SEBI aims to provide a more robust and transparent environment for both institutional and retail ETF investors.

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