iShares Core U.S. Growth ETF (NYSEArca: IUSG)
Expense Ratio: 0.09%
Comment: Formerly known as the Russell 3000 Groth ETF (IWZ), IUSG still tracks the broad Russell 3000 Growth index but iShares re-branded the ETF to fit in with its new line of so-called Core ETF strategies for building a diversified core investment portfolio. As a growth stock ETF, IUSG tracks the faster-growing half of the Russell 3000. On the other hand, the iShares Core U.S. Value ETF (NYSEArca: IUSV), which also has a 0.09% expense ratio, tracks the value portion of the Russell 3000. [iShares to Make Significant Additions to Core Lineup]