Core Insights - The iShares Core S&P Small-Cap ETF (IJR) and iShares Morningstar Small-Cap ETF (ISCB) target U.S. small-cap stocks but differ in costs, diversification, and income potential [5][6] - IJR has a larger asset base of $88 billion and higher liquidity with an average daily trading volume of over 6 million shares, making it more appealing for investors prioritizing liquidity [7] - ISCB offers broader diversification with 1,539 holdings and a lower expense ratio of 0.04% compared to IJR's 0.06%, which may attract cost-conscious investors [3][8] Cost Comparison - IJR provides a higher dividend yield of 1.9% compared to ISCB's 1.2%, which is significant for income-focused investors [3][8] - The expense ratio for ISCB is 0.04%, while IJR charges 0.06%, indicating a marginal cost advantage for ISCB [3][8] Portfolio Composition - IJR holds 635 names with significant sector weights in financial services, industrials, and technology, while ISCB has a more diversified portfolio with 1,539 holdings across similar sectors [1][2][8] - The largest positions in ISCB, such as Ciena, Coherent, and Rocket Lab, each account for less than 1% of assets, reflecting its diversified approach [2] Investment Strategy - Investors seeking maximum liquidity and confidence in fund size may prefer IJR, while those looking for lower costs and broader diversification might opt for ISCB, despite its lower trading volume [9]