BSPIX vs. BTMKX
BSPIX (iShares S&P 500 Index Fund Institutional Class) and BTMKX (iShares MSCI EAFE International Index Fund) are both mutual funds - BSPIX is a S&P 500 fund tracking the S&P 500 Index, while BTMKX is a Foreign Large Cap Equities fund tracking the MSCI EAFE Index. Both are passively managed. Over the past 10 years, BSPIX returned 15.46%/yr vs 9.42%/yr for BTMKX. A 0.77 correlation means they provide meaningful diversification when combined. BSPIX charges 0.10%/yr vs 0.05%/yr for BTMKX.
Performance
BSPIX vs. BTMKX - Performance Comparison
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Returns By Period
In the year-to-date period, BSPIX achieves a 11.65% return, which is significantly higher than BTMKX's 9.65% return. Over the past 10 years, BSPIX has outperformed BTMKX with an annualized return of 15.46%, while BTMKX has yielded a comparatively lower 9.42% annualized return.
BSPIX
- 1D
- 0.13%
- 1M
- 5.79%
- YTD
- 11.65%
- 6M
- 11.68%
- 1Y
- 28.84%
- 3Y*
- 22.63%
- 5Y*
- 14.17%
- 10Y*
- 15.46%
BTMKX
- 1D
- 0.33%
- 1M
- 4.17%
- YTD
- 9.65%
- 6M
- 12.05%
- 1Y
- 22.44%
- 3Y*
- 17.20%
- 5Y*
- 8.94%
- 10Y*
- 9.42%
BSPIX vs. BTMKX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BSPIX iShares S&P 500 Index Fund Institutional Class | 11.65% | 17.75% | 24.85% | 26.17% | -18.20% | 28.55% | 18.35% | 31.35% | -4.87% | 21.20% |
BTMKX iShares MSCI EAFE International Index Fund | 9.65% | 31.70% | 3.70% | 18.37% | -14.04% | 11.30% | 8.07% | 21.96% | -13.38% | 25.17% |
Correlation
The correlation between BSPIX and BTMKX is 0.75, 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 | 0.75 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.71 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.76 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.77 |
Correlation (All Time) Calculated using the full available price history since Jan 3, 2014 | 0.77 |
The correlation between BSPIX and BTMKX has been stable across timeframes, ranging from 0.71 to 0.77 - a consistent structural relationship.
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Return for Risk
BSPIX vs. BTMKX — Risk / Return Rank
BSPIX
BTMKX
BSPIX vs. BTMKX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares S&P 500 Index Fund Institutional Class (BSPIX) and iShares MSCI EAFE International Index Fund (BTMKX). 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.
| BSPIX | BTMKX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.08 | ||
| Sortino ratioReturn per unit of downside risk | +1.35 | ||
| Omega ratioGain probability vs. loss probability | 1.46 | 1.26 | +0.20 |
| Calmar ratioReturn relative to maximum drawdown | 3.34 | 1.91 | +1.43 |
| Martin ratioReturn relative to average drawdown | 15.58 | 7.15 | +8.42 |
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
| BSPIX | BTMKX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.51 | 1.43 | +1.08 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.84 | 0.56 | +0.29 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.86 | 0.57 | +0.29 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.81 | 0.39 | +0.41 |
Drawdowns
BSPIX vs. BTMKX - Drawdown Comparison
The maximum BSPIX drawdown since its inception was -33.75%, roughly equal to the maximum BTMKX drawdown of -33.92%. Use the drawdown chart below to compare losses from any high point for BSPIX and BTMKX.
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Drawdown Indicators
| BSPIX | BTMKX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.75% | -33.92% | +0.17% |
Max Drawdown (1Y)Largest decline over 1 year | -8.91% | -11.30% | +2.39% |
Max Drawdown (3Y)Largest decline over 3 years | -18.74% | -13.66% | -5.08% |
Max Drawdown (5Y)Largest decline over 5 years | -24.55% | -29.23% | +4.68% |
Max Drawdown (10Y)Largest decline over 10 years | -33.75% | -33.92% | +0.17% |
Current DrawdownCurrent decline from peak | 0.00% | -0.38% | +0.38% |
Average DrawdownAverage peak-to-trough decline | -3.93% | -7.77% | +3.84% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.90% | 3.01% | -1.11% |
Volatility
BSPIX vs. BTMKX - Volatility Comparison
The current volatility for iShares S&P 500 Index Fund Institutional Class (BSPIX) is 2.83%, while iShares MSCI EAFE International Index Fund (BTMKX) has a volatility of 4.70%. This indicates that BSPIX experiences smaller price fluctuations and is considered to be less risky than BTMKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BSPIX | BTMKX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.83% | 4.70% | -1.87% |
Volatility (6M)Calculated over the trailing 6-month period | 8.97% | 12.29% | -3.32% |
Volatility (1Y)Calculated over the trailing 1-year period | 11.85% | 15.14% | -3.29% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.88% | 16.17% | +0.71% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.03% | 16.67% | +1.36% |
BSPIX vs. BTMKX - Expense Ratio Comparison
BSPIX has a 0.10% expense ratio, which is higher than BTMKX's 0.05% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
BSPIX vs. BTMKX - Dividend Comparison
BSPIX's dividend yield for the trailing twelve months is around 1.50%, less than BTMKX's 3.42% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BSPIX iShares S&P 500 Index Fund Institutional Class | 1.50% | 1.66% | 1.35% | 1.44% | 1.94% | 1.76% | 1.60% | 1.92% | 1.94% | 1.57% | 2.30% | 2.42% |
BTMKX iShares MSCI EAFE International Index Fund | 3.42% | 3.74% | 3.43% | 3.19% | 2.80% | 3.06% | 1.99% | 3.34% | 4.58% | 2.45% | 2.85% | 2.42% |
Frequently Asked Questions
BSPIX and BTMKX have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BTMKX has higher volatility (4.70%) compared to BSPIX (2.83%). In terms of maximum drawdown, BSPIX dropped -33.75% vs BTMKX's -33.92%.
BSPIX currently has the higher Sharpe Ratio (2.51 vs 1.43), 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.
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