Slader has chosen to veer away from the traditional non-profit course education start-ups tread.

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Still, for Mr. Newell, the changing winds in the scientific research shouldn't give Johns Hopkins the ability to veer away from his aunt's wishes.

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In other words, anything that you do that is different from the actual direction of the price itself so if we are in an exchange traded fund position and it is moving up, anything that you use that is not related to the actual direction of the price always has the potential to veer way away from reality.

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Plus there are times when the prices of ETFs veer away from the value of the underlying holdings, which can eat into or add to an investor's return.

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