OOK Advisors is at it again with the launch Wednesday of an exchange-traded fund that solely tracks Texas-based companies.

Just last week, OOK unveiled its Oklahoma-linked ETF (NYSEArca: OOK), the first ETF to focus on companies based in a specific state.

The Texas Large Companies ETF (NYSEArca: TXF) replicates the SPADE Texas Index comprising publicly traded Texas-based companies.

Energy holds by far the largest weighting in the index, with a 63.1 percent slice, as of Sept. 30. Other sectors include technology, telecommunications, consumer, industrial and financial services, transportation, real estate, utilities and health.

Though companies in the index are weighted by market capitalization, no single company can account for more than 10 percent of the portfolio.

TXF comes with an expense ratio of 0.85 percent.

TXF Holdings As Of Nov. 2:

TXF’s prospectus can be found here.