TER (total expense ratio)
The yearly cost of a fund as a percentage of the amount invested, deducted from its returns.
Index funds and ETFs often cost 0.1 to 0.3 % a year; actively managed funds often cost 1 % or more. Over decades, cost differences compound into large sums.
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Investing
Investing in Switzerland: broad ETFs, domicile and fees
A plain guide to a low-cost portfolio from Switzerland: why broad index funds, how fund domicile affects withholding tax and what fees do over 30 years.