Expense Ratio

The expense ratio represents the annual fee deducted daily from the fund’s assets to cover management and operations. Due to passive indexing, average ETF expense ratios are significantly below those of mutual funds. Large-cap passive index ETFs frequently charge between 0.02% and 0.09% (e.g., Vanguard S&P 500 ETF VOO(.03%), SPDR Portfolio S&P 500 ETF SPLG(.02%), Vanguard Total Stock Market ETF VTI(.03%)), whereas active strategies demand higher premiums.

Selecting ETFs by Expense Ratio

Fees compound to create a permanent drag on long-term performance. An initial $1,000,000 portfolio growing at a gross 7% annually for 30 years yields approximately $7,190,000 under a 0.20% expense ratio:

$1,000,000 × (1.07 0.002)30 $7,192,860
(12.1)

The same portfolio under a 0.66% expense ratio yields only $6,320,000, illustrating an $870,000 wealth destruction:

$1,000,000 × (1.07 0.0066)30 $6,321,950
(12.2)

Cost comparisons are valid only within identical asset classes. International, emerging market, or specialized sector funds incur higher transactional and regulatory overhead, justifying higher baselines than domestic large-cap options. Compare products tracking the same index (e.g., iShares Core S&P 500 ETF IVV(.03%), Vanguard S&P 500 ETF VOO(.03%), SPDR Portfolio S&P 500 ETF SPLG(.02%)) to optimize transaction costs and minimize tracking error.