A management fee is an ongoing percentage of invested capital charged by an ETF or mutual fund. For ETFs, it is commonly quoted as an annual expense ratio: an expense ratio of 0.25% costs $0.25 per $100 invested. The fee is deducted from fund value daily, so investors do not pay it separately; instead, it reduces total return relative to the underlying holdings. section 4.1.4 section 4.2.2
Use the fee as one component of an investment’s total ownership cost:
- Estimate holding cost as expected holding period × expense ratio × position value. section 4.3.1
- Compare it with trading costs, especially the bid–ask spread paid when buying and selling. section 4.3.1
- Account for additional mutual-fund charges, including 12b-1 fees, sales loads, and share-class differences. section 4.2.2
Comparing S&P 500 ETFs
For a $15,000 position held for one year, a 0.03% expense ratio implies $4.50 of holding cost, while a 0.09% ratio implies $13.50. The complete comparison must also include trading costs: SPY’s higher expense ratio is paired with a lower total cost than SPLG’s in the supplied example because trading costs differ substantially.
