The term Wilshire US Large Cap Index refers to a composite that includes large capitalization companies located in the United States. The Wilshire US Large Cap is published and maintained by Wilshire Associates.
The Wilshire 5000 Total Market Index is designed to measure the performance of the large, mid, small, and micro capitalization companies in the United States equities market. The index is a composite of all the securities (primary equity, common stock, REIT, or Limited Partnership) that have a primary market listing in the United States. The Wilshire US Large Cap Index consists of the 750 largest companies contained in the Wilshire 5000 in terms of market capitalization.
First published in 1993, the index is rebalanced every six months. The Wilshire US Large Cap is a float-adjusted, market capitalization-weighted index. The performance of this index can be monitored via the stock ticker symbol W5KLC.