BKTSX vs. PREIX
Compare and contrast key facts about iShares Total U.S. Stock Market Index Fund Class K (BKTSX) and T. Rowe Price Equity Index 500 Fund (PREIX).
BKTSX is a passively managed fund by iShares that tracks the performance of the Russell 3000 Index. It was launched on Aug 13, 2015. PREIX is managed by T. Rowe Price. It was launched on Mar 30, 1990.
Performance
BKTSX vs. PREIX - Performance Comparison
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BKTSX vs. PREIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BKTSX iShares Total U.S. Stock Market Index Fund Class K | -3.12% | 17.15% | 23.83% | 26.02% | -19.05% | 25.56% | 20.82% | 31.12% | -5.37% | 21.02% |
PREIX T. Rowe Price Equity Index 500 Fund | -3.59% | 19.24% | 24.78% | 26.07% | -18.27% | 28.48% | 18.17% | 31.47% | -4.59% | 21.01% |
Returns By Period
In the year-to-date period, BKTSX achieves a -3.12% return, which is significantly higher than PREIX's -3.59% return. Both investments have delivered pretty close results over the past 10 years, with BKTSX having a 13.78% annualized return and PREIX not far ahead at 14.11%.
BKTSX
- 1D
- 0.13%
- 1M
- -4.02%
- YTD
- -3.12%
- 6M
- -1.29%
- 1Y
- 23.97%
- 3Y*
- 18.12%
- 5Y*
- 10.81%
- 10Y*
- 13.78%
PREIX
- 1D
- 0.12%
- 1M
- -4.08%
- YTD
- -3.59%
- 6M
- -0.17%
- 1Y
- 24.92%
- 3Y*
- 18.80%
- 5Y*
- 12.08%
- 10Y*
- 14.11%
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BKTSX vs. PREIX - Expense Ratio Comparison
BKTSX has a 0.02% expense ratio, which is lower than PREIX's 0.15% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Return for Risk
BKTSX vs. PREIX — Risk / Return Rank
BKTSX
PREIX
BKTSX vs. PREIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Total U.S. Stock Market Index Fund Class K (BKTSX) and T. Rowe Price Equity Index 500 Fund (PREIX). 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.
| BKTSX | PREIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.96 | 1.04 | -0.08 |
Sortino ratioReturn per unit of downside risk | 1.47 | 1.57 | -0.10 |
Omega ratioGain probability vs. loss probability | 1.22 | 1.24 | -0.02 |
Calmar ratioReturn relative to maximum drawdown | 1.51 | 1.62 | -0.12 |
Martin ratioReturn relative to average drawdown | 7.10 | 7.66 | -0.56 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| BKTSX | PREIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.96 | 1.04 | -0.08 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.62 | 0.71 | -0.09 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.75 | 0.78 | -0.03 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.75 | 0.59 | +0.16 |
Correlation
The correlation between BKTSX and PREIX is 0.98, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
BKTSX vs. PREIX - Dividend Comparison
BKTSX's dividend yield for the trailing twelve months is around 1.17%, less than PREIX's 3.82% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BKTSX iShares Total U.S. Stock Market Index Fund Class K | 1.17% | 1.14% | 1.27% | 1.46% | 1.64% | 1.58% | 1.51% | 2.15% | 2.49% | 2.17% | 1.54% | 0.00% |
PREIX T. Rowe Price Equity Index 500 Fund | 3.82% | 3.66% | 1.17% | 1.32% | 1.50% | 1.56% | 1.97% | 2.13% | 2.60% | 1.30% | 2.03% | 2.02% |
Drawdowns
BKTSX vs. PREIX - Drawdown Comparison
The maximum BKTSX drawdown since its inception was -34.97%, smaller than the maximum PREIX drawdown of -55.32%. Use the drawdown chart below to compare losses from any high point for BKTSX and PREIX.
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Drawdown Indicators
| BKTSX | PREIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.97% | -55.32% | +20.35% |
Max Drawdown (1Y)Largest decline over 1 year | -8.87% | -8.93% | +0.06% |
Max Drawdown (5Y)Largest decline over 5 years | -24.98% | -24.60% | -0.38% |
Max Drawdown (10Y)Largest decline over 10 years | -34.97% | -33.81% | -1.16% |
Current DrawdownCurrent decline from peak | -5.38% | -5.49% | +0.11% |
Average DrawdownAverage peak-to-trough decline | -4.59% | -8.76% | +4.17% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.62% | 2.57% | +0.05% |
Volatility
BKTSX vs. PREIX - Volatility Comparison
iShares Total U.S. Stock Market Index Fund Class K (BKTSX) and T. Rowe Price Equity Index 500 Fund (PREIX) have volatilities of 5.40% and 5.30%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BKTSX | PREIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.40% | 5.30% | +0.10% |
Volatility (6M)Calculated over the trailing 6-month period | 9.74% | 9.49% | +0.25% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.57% | 18.28% | +0.29% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.36% | 16.99% | +0.37% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.39% | 18.08% | +0.31% |