KBWP doesn't attempt to provide broad-market exposure to the US Insurance sector. Instead, the fund focuses specifically on property & casualty insurance firms. Its holdings also have a significant position in reinsurance companies. To curate the portfolio, an index committee determines the fund constituents and a modified market-cap weighting is put into use. Notably, the portfolio underweights mega-cap insurance brokers, life & health insurance firms and other huge conglomerates, tilting the portfolio small. The index is rebalanced and reconstituted on a quarterly basis.