An investor owns an Exchange Traded Fund (ETF) that tracks the S&P 500 Index. The ETF holds the underlying stocks in the same proportion as the index. Over a specific period, the S&P 500 Index generated a return of 8.0%. During the same period, the ETF generated a return of 7.6%. Which of the following is the most likely reason for this discrepancy?

Question: An investor owns an Exchange Traded Fund (ETF) that tracks the S&P 500 Index. The ETF holds the underlying stocks in the same proportion as the index. Over a specific period, the S&P 500 Index generated a return of 8.0%. During the same period, the ETF generated a return of 7.6%. Which of the following is the most likely reason for this discrepancy?

Answer options: ✅ The ETF experienced tracking error primarily due to its Management Expense Ratio (MER) and trading costs.

• The ETF's portfolio manager actively made incorrect investment decisions.
• The ETF was trading at a significant premium to its Net Asset Value (NAV).
• The S&P 500 Index included securities that the ETF was prohibited from holding.

Correct answer: The ETF experienced tracking error primarily due to its Management Expense Ratio (MER) and trading costs.

Explanation: Tracking error, which is the difference between an index fund's return and its benchmark index, is primarily influenced by the fund's MER, trading commissions, and other operational costs. Active management decisions are not relevant for a passively managed index ETF. A premium/discount to NAV affects investor returns but isn't the primary reason for tracking error against the index itself. Prohibitions are less common for major indices.