iShares Russell 3000 ETF(AMEX:IWV)

IWV is well-known to provide exposure to the broad Russell 3000 index. The fund holds roughly 500 more names than its benchmark, as it reaches further down the cap spectrum to 98% of the investable market. This makes for a more comprehensive portfolio, but practically speaking, the additional names have little impact on the fund's relative risk or portfolio characteristics. Micro- and small-cap firms make up so little of the broad market that their influence on a cap-weighted portfolio is minimal. In all, IWV delivers solid exposure to the total market using a well-known index. The index is reconstituted annually.