IJR vs. RB

Last updated Jul 15, 2026

IJR (iShares Core S&P Small-Cap ETF) and RB (ProShares Russell 2000 Dynamic Daily Buffer ETF) are both exchange-traded funds - IJR is a Small Cap Blend Equities fund tracking the S&P SmallCap 600 Index, while RB is a Defined Outcome fund tracking the Russell 2000. Both are passively managed. Over the past year, IJR returned 30.20% vs 18.16% for RB. A 0.71 correlation means they provide meaningful diversification when combined. IJR charges 0.06%/yr vs 0.58%/yr for RB.

Performance

IJR vs. RB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Core S&P Small-Cap ETF (IJR) and ProShares Russell 2000 Dynamic Daily Buffer ETF (RB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IJR achieves a 21.53% return, which is significantly higher than RB's 7.99% return.

IJR

• 1D: 0.27%
• 1M: 1.50%
• 6M: 15.44%
• YTD: 21.53%
• 1Y: 30.20%
• 3Y*: 14.56%
• 5Y*: 7.78%
• 10Y*: 10.74%

RB

• 1D: -0.17%
• 1M: 0.98%
• 6M: 5.98%
• YTD: 7.99%
• 1Y: 18.16%
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

IJR vs. RB - Yearly Performance Comparison

	2026 (YTD)	2025
IJR iShares Core S&P Small-Cap ETF	21.53%	12.67%
RB ProShares Russell 2000 Dynamic Daily Buffer ETF	7.99%	10.85%

Correlation

The correlation between IJR and RB is 0.71, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.71
Correlation (All Time) Calculated using the full available price history since Jun 26, 2025	0.71

The correlation between IJR and RB has been stable across timeframes, ranging from 0.71 to 0.71 - a consistent structural relationship.

Return for Risk

IJR vs. RB — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

IJR

IJR Risk / Return Rank: 72
IJR Sharpe Ratio Rank: 67
IJR Sortino Ratio Rank: 71
IJR Omega Ratio Rank: 63
IJR Calmar Ratio Rank: 82
IJR Martin Ratio Rank: 78

RB

RB Risk / Return Rank: 96
RB Sharpe Ratio Rank: 94
RB Sortino Ratio Rank: 96
RB Omega Ratio Rank: 95
RB Calmar Ratio Rank: 97
RB Martin Ratio Rank: 96

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

IJR vs. RB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Core S&P Small-Cap ETF (IJR) and ProShares Russell 2000 Dynamic Daily Buffer ETF (RB). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	IJR	RB	Difference
Sharpe ratio: Return per unit of total volatility	1.73	2.77	-1.04
Sortino ratio: Return per unit of downside risk	2.56	4.71	-2.15
Omega ratio: Gain probability vs. loss probability	1.30	1.60	-0.30
Calmar ratio: Return relative to maximum drawdown	3.49	8.73	-5.23
Martin ratio: Return relative to average drawdown	11.71	28.14	-16.43

IJR vs. RB - Sharpe Ratio Comparison

The current IJR Sharpe Ratio is 1.73, which is lower than the RB Sharpe Ratio of 2.77. The chart below compares the historical Sharpe Ratios of IJR and RB, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

IJR vs. RB - Drawdown Comparison

The maximum IJR drawdown since its inception was -58.15%, which is greater than RB's maximum drawdown of -2.09%. Use the drawdown chart below to compare losses from any high point for IJR and RB.

Drawdown Indicators

	IJR	RB	Difference
Max Drawdown Largest peak-to-trough decline	-58.15%	-2.09%	-56.06%
Max Drawdown (1Y) Largest decline over 1 year	-8.68%	-2.09%	-6.59%
Max Drawdown (3Y) Largest decline over 3 years	-28.02%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-28.02%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-44.36%	—	—
Current Drawdown Current decline from peak	-1.98%	-0.45%	-1.53%
Average Drawdown Average peak-to-trough decline	-9.25%	-0.44%	-8.81%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.59%	0.65%	+1.94%

Volatility

IJR vs. RB - Volatility Comparison

iShares Core S&P Small-Cap ETF (IJR) has a higher volatility of 3.97% compared to ProShares Russell 2000 Dynamic Daily Buffer ETF (RB) at 1.63%. This indicates that IJR's price experiences larger fluctuations and is considered to be riskier than RB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IJR	RB	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.97%	1.63%	+2.34%
Volatility (6M) Calculated over the trailing 6-month period	11.98%	4.74%	+7.24%
Volatility (1Y) Calculated over the trailing 1-year period	17.53%	6.57%	+10.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.35%	6.48%	+14.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.85%	6.48%	+16.37%

IJR vs. RB - Expense Ratio Comparison

IJR has a 0.06% expense ratio, which is lower than RB's 0.58% expense ratio.

Dividends

IJR vs. RB - Dividend Comparison

IJR's dividend yield for the trailing twelve months is around 1.13%, less than RB's 2.27% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IJR iShares Core S&P Small-Cap ETF	1.13%	1.44%	2.05%	1.31%	1.41%	1.53%	1.11%	1.44%	1.58%	1.20%	1.22%	1.48%
RB ProShares Russell 2000 Dynamic Daily Buffer ETF	2.27%	1.78%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both IJR and RB in my portfolio?

IJR and RB have a correlation of 0.71, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IJR or RB?

IJR has higher volatility (3.97%) compared to RB (1.63%). In terms of maximum drawdown, IJR dropped -58.15% vs RB's -2.09%.

Which ETF is better, IJR or RB?

On 1-year performance, IJR leads with 30.20% vs 18.16% for RB. On fees, IJR is cheaper at 0.06% per year. On volatility, RB has been the lower-risk option at 1.63%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IJR or RB?

Over the 1-year period, IJR has performed better with a 30.20% return vs 18.16%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IJR or RB?

IJR is cheaper with a 0.06% expense ratio, compared with 0.58% for RB.

Which ETF pays a higher dividend yield, IJR or RB?

RB has the higher dividend yield at 2.27%, compared with 1.13% for IJR.

What is the main difference between IJR and RB?

IJR is categorized as Small Cap Blend Equities, while RB is Defined Outcome. IJR tracks S&P SmallCap 600 Index, while RB tracks Russell 2000. They also come from different issuers: iShares and ProShares. Their fees differ too: 0.06% for IJR and 0.58% for RB.

Which has better risk-adjusted returns?

RB currently has the higher Sharpe Ratio (2.77 vs 1.73), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.