A provider of an index fund most likely uses a sampling replication procedure to track the index in order to

Reason why sampling replication procedure is been utilized by provider of an index when tracking the index is to : reduce transaction costs.

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A provider of an index fund most likely uses a sampling replication procedure to track the index in order to:

reduce transaction costs.

Explanation:

The reduction of transaction costs is at the core with index fund providers.  An index fund is described as a mutual fund or an exchange-traded fund (ETF).  The portfolio of the index fund is constructed to match or track the components of a financial market index, for example, the S&P 500 index.   It has been noted that these funds follow their benchmark index without regard to the state of the exchange market.

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