IOO performance across multiple time periods: 1-month -4.36%, YTD 7.48%, 1-year 26.79%, 3-year 22.20%, 5-year 15.23%, 10-year 16.17%.

IOO returns trail the peer average of 9.13% YTD. With an expense ratio of 0.40%, investors should weigh costs against performance when evaluating this ETF.

IOO performance comparison shows side-by-side returns with another fund. IOO alternatives are available in the ETF Screener.