A 3x Bull ETF (triple leveraged ETF) is an exchange-traded fund that uses derivatives — futures contracts, swaps, and options — to deliver three times the daily return of a specified benchmark index. If the Nifty 50 rises 2% in a single session, a hypothetical 3x Nifty 50 bull ETF aims to deliver +6%; if the index falls 2%, the ETF falls 6%. Leveraged ETFs are rebalanced daily to maintain their leverage ratio — a process called daily rebalancing — which creates a compounding effect known as 'beta slippage' or 'volatility decay' over longer holding periods, meaning that even if the underlying index returns to its starting level after a volatile period, the 3x ETF may be significantly below its starting value. This makes leveraged ETFs highly unsuitable for buy-and-hold investment strategies and primarily appropriate for sophisticated intraday or very short-term traders with a specific directional view. In India, SEBI has not approved 3x leveraged ETFs for domestic listing — they are primarily available on US exchanges (through ProShares, Direxion, and similar issuers) and accessible to Indian investors via the Liberalised Remittance Scheme (LRS) for international investments. The high risk of capital loss from volatility decay, combined with the regulatory constraint, makes 3x bull ETFs an instrument Indian retail investors should approach with extreme caution and thorough understanding.