Philadelphia Oil Service Index

Hypothesis: it is possible to weight the 15 companies used to construct the Philadelphia Oil Service Index in such a way that the resultant index outperforms the Philadelphia Oil Service Index.

A preliminary study indicates that the hypothesis may be accepted. Using data since 1st October 2007 through 9th January 2012: the new index is at 121.1% of its value on 1st October 2007; the Philadelphia Oil Service Index is at 72.1% of its value on 1st October 2007. The new index will outperform the Philadelphia Oil Service Index by about 68%.

Nathan A. Busch

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