BSPGX vs. BSPPX

Last updated Apr 1, 2026

Compare and contrast key facts about iShares S&P 500 Index Fund Class G (BSPGX) and iShares S&P 500 Index Fund Investor P Shares (BSPPX).

BSPGX is a passively managed fund by iShares that tracks the performance of the S&P 500 Index. It was launched on Jul 1, 2019. BSPPX is a passively managed fund by iShares that tracks the performance of the S&P 500 Index. It was launched on Aug 6, 2018. Both BSPGX and BSPPX are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

BSPGX vs. BSPPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares S&P 500 Index Fund Class G (BSPGX) and iShares S&P 500 Index Fund Investor P Shares (BSPPX). The values are adjusted to include any dividend payments, if applicable.

BSPGX vs. BSPPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
BSPGX iShares S&P 500 Index Fund Class G	-7.06%	17.85%	24.96%	26.27%	-18.12%	28.66%	19.16%	11.06%
BSPPX iShares S&P 500 Index Fund Investor P Shares	-7.14%	17.46%	24.54%	25.85%	-18.40%	28.23%	18.05%	9.56%

Returns By Period

The year-to-date returns for both stocks are quite close, with BSPGX having a -7.06% return and BSPPX slightly lower at -7.14%.

BSPGX

• 1D: -0.39%
• 1M: -7.68%
• YTD: -7.06%
• 6M: -4.62%
• 1Y: 14.42%
• 3Y*: 17.15%
• 5Y*: 11.39%
• 10Y*: —

BSPPX

• 1D: -0.40%
• 1M: -7.71%
• YTD: -7.14%
• 6M: -4.78%
• 1Y: 14.04%
• 3Y*: 16.76%
• 5Y*: 11.02%
• 10Y*: —

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

BSPGX vs. BSPPX - Expense Ratio Comparison

BSPGX has a 0.01% expense ratio, which is lower than BSPPX's 0.35% expense ratio.

BSPPX

iShares S&P 500 Index Fund Investor P Shares

BSPGX

iShares S&P 500 Index Fund Class G

Return for Risk

BSPGX vs. BSPPX — Risk / Return Rank

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

BSPGX

BSPGX Risk / Return Rank: 44
BSPGX Sharpe Ratio Rank: 39
BSPGX Sortino Ratio Rank: 42
BSPGX Omega Ratio Rank: 46
BSPGX Calmar Ratio Rank: 40
BSPGX Martin Ratio Rank: 52

BSPPX

BSPPX Risk / Return Rank: 41
BSPPX Sharpe Ratio Rank: 36
BSPPX Sortino Ratio Rank: 38
BSPPX Omega Ratio Rank: 42
BSPPX Calmar Ratio Rank: 38
BSPPX Martin Ratio Rank: 49

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.

BSPGX vs. BSPPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares S&P 500 Index Fund Class G (BSPGX) and iShares S&P 500 Index Fund Investor P Shares (BSPPX). 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.

	BSPGX	BSPPX	Difference
Sharpe ratio Return per unit of total volatility	0.84	0.82	+0.02
Sortino ratio Return per unit of downside risk	1.30	1.27	+0.03
Omega ratio Gain probability vs. loss probability	1.20	1.19	0.00
Calmar ratio Return relative to maximum drawdown	1.06	1.03	+0.03
Martin ratio Return relative to average drawdown	5.14	4.96	+0.18
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BSPGX vs. BSPPX - Sharpe Ratio Comparison

The current BSPGX Sharpe Ratio is 0.84, which is comparable to the BSPPX Sharpe Ratio of 0.82. The chart below compares the historical Sharpe Ratios of BSPGX and BSPPX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	BSPGX	BSPPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.84	0.82	+0.02
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.68	0.66	+0.02
Sharpe Ratio (All Time) Calculated using the full available price history	0.69	0.62	+0.07

Correlation

The correlation between BSPGX and BSPPX is 1.00, 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

BSPGX vs. BSPPX - Dividend Comparison

BSPGX's dividend yield for the trailing twelve months is around 1.60%, more than BSPPX's 1.34% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018
BSPGX iShares S&P 500 Index Fund Class G	1.60%	1.74%	1.43%	1.52%	2.04%	1.83%	2.09%	2.25%	0.00%
BSPPX iShares S&P 500 Index Fund Investor P Shares	1.34%	1.43%	1.12%	1.22%	1.67%	1.53%	1.38%	1.70%	1.35%

Drawdowns

BSPGX vs. BSPPX - Drawdown Comparison

The maximum BSPGX drawdown since its inception was -33.74%, roughly equal to the maximum BSPPX drawdown of -33.76%. Use the drawdown chart below to compare losses from any high point for BSPGX and BSPPX.

Drawdown Indicators

	BSPGX	BSPPX	Difference
Max Drawdown Largest peak-to-trough decline	-33.74%	-33.76%	+0.02%
Max Drawdown (1Y) Largest decline over 1 year	-12.11%	-12.11%	0.00%
Max Drawdown (5Y) Largest decline over 5 years	-24.50%	-24.70%	+0.20%
Current Drawdown Current decline from peak	-8.90%	-8.95%	+0.05%
Average Drawdown Average peak-to-trough decline	-5.19%	-5.32%	+0.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.49%	2.50%	-0.01%

Volatility

BSPGX vs. BSPPX - Volatility Comparison

iShares S&P 500 Index Fund Class G (BSPGX) and iShares S&P 500 Index Fund Investor P Shares (BSPPX) have volatilities of 4.24% and 4.24%, 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.

Volatility by Period

	BSPGX	BSPPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.24%	4.24%	0.00%
Volatility (6M) Calculated over the trailing 6-month period	9.08%	9.07%	+0.01%
Volatility (1Y) Calculated over the trailing 1-year period	18.06%	18.06%	0.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.85%	16.84%	+0.01%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.15%	19.86%	+0.29%