For index funds, the important measure is the tracking difference [0] anyway. While the costs contribute to it, different ETFs on the same index differ in their

For index funds, the important measure is the tracking difference [0] anyway. While the costs contribute to it, different ETFs on the same index differ in their typical/historic tracking differences beyond their differences in nominal cost. [0] https://www.morningstar.com/business/insights/blog/funds/etf-tracking-difference-error https://www.morningstar.com/business/insights/blog/funds/etf...