This list recognizes a fund's ability to perform, through up and down markets, while keeping expenses low.

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Low prices for natural gas are keeping their expenses low during this hot summer.

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Additionally, it is difficult to overemphasize enough how keeping fund expenses low over time is so vital to your future wealth.

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And yet the stock market kept rising in part because companies were improving their productivity with new enterprise software and keeping their labor expenses low by not hiring much.

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