The primary differences between Vanguard Small-Cap Value ETF (NYSEMKT:VBR) and iShares S&P Mid-Cap 400 Value ETF (NYSEMKT:IJJ) center on market-cap focus, with IJJ targeting mid-caps while VBR provides broader small-cap exposure at a lower cost. Both funds target domestic "value" stocks -- companies trading at lower price multiples than the broader market. While VBR captures small-capitalization names, IJJ focuses on the mid-cap space. Choosing between them often depends on an investor's desired exposure ...