An asset which is "under-Performing" is an asset which does not behave as well as initially expected. For instance an "under-Performing Share" is a Share which price behaves more poorly than its peer group. A project which is "under-Performing" (or "poorly Performing", or "Non-performing") is a project which is not constructed on time and on budget, and/or starts generating the cash flows which are lower than anticipated. The opposite of "under-Performing" is "Over-performing".

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