BGRN vs. ^GSPC

Last updated Apr 1, 2026

Compare and contrast key facts about iShares USD Green Bond ETF (BGRN) and S&P 500 Index (^GSPC).

BGRN is a passively managed fund by iShares that tracks the performance of the Bloomberg MSCI USD Green Bond Select Index. It was launched on Nov 13, 2018.

Performance

BGRN vs. ^GSPC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares USD Green Bond ETF (BGRN) and S&P 500 Index (^GSPC). The values are adjusted to include any dividend payments, if applicable.

BGRN vs. ^GSPC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
BGRN iShares USD Green Bond ETF	-0.27%	7.27%	2.77%	6.50%	-13.06%	-2.80%	6.86%	9.70%	1.14%
^GSPC S&P 500 Index	-4.63%	16.39%	23.31%	24.23%	-19.44%	26.89%	16.26%	28.88%	-6.54%

Returns By Period

In the year-to-date period, BGRN achieves a -0.27% return, which is significantly higher than ^GSPC's -4.63% return.

BGRN

• 1D: 0.51%
• 1M: -1.53%
• YTD: -0.27%
• 6M: 0.73%
• 1Y: 4.57%
• 3Y*: 4.37%
• 5Y*: 0.31%
• 10Y*: —

^GSPC

• 1D: 2.91%
• 1M: -5.09%
• YTD: -4.63%
• 6M: -2.39%
• 1Y: 16.33%
• 3Y*: 16.69%
• 5Y*: 10.18%
• 10Y*: 12.16%

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

Return for Risk

BGRN vs. ^GSPC — Risk / Return Rank

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

BGRN

BGRN Risk / Return Rank: 74
BGRN Sharpe Ratio Rank: 74
BGRN Sortino Ratio Rank: 75
BGRN Omega Ratio Rank: 67
BGRN Calmar Ratio Rank: 80
BGRN Martin Ratio Rank: 75

^GSPC

^GSPC Risk / Return Rank: 74
^GSPC Sharpe Ratio Rank: 69
^GSPC Sortino Ratio Rank: 68
^GSPC Omega Ratio Rank: 76
^GSPC Calmar Ratio Rank: 73
^GSPC Martin Ratio Rank: 85

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.

BGRN vs. ^GSPC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares USD Green Bond ETF (BGRN) and S&P 500 Index (^GSPC). 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.

	BGRN	^GSPC	Difference
Sharpe ratio Return per unit of total volatility	1.30	0.90	+0.40
Sortino ratio Return per unit of downside risk	1.86	1.39	+0.47
Omega ratio Gain probability vs. loss probability	1.24	1.21	+0.03
Calmar ratio Return relative to maximum drawdown	2.20	1.40	+0.80
Martin ratio Return relative to average drawdown	7.69	6.61	+1.08
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BGRN vs. ^GSPC - Sharpe Ratio Comparison

The current BGRN Sharpe Ratio is 1.30, which is higher than the ^GSPC Sharpe Ratio of 0.90. The chart below compares the historical Sharpe Ratios of BGRN and ^GSPC, 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

	BGRN	^GSPC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.30	0.90	+0.40
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.06	0.61	-0.55
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.68	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.44	0.46	-0.02

Correlation

The correlation between BGRN and ^GSPC is 0.14, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Drawdowns

BGRN vs. ^GSPC - Drawdown Comparison

The maximum BGRN drawdown since its inception was -19.16%, smaller than the maximum ^GSPC drawdown of -56.78%. Use the drawdown chart below to compare losses from any high point for BGRN and ^GSPC.

Drawdown Indicators

	BGRN	^GSPC	Difference
Max Drawdown Largest peak-to-trough decline	-19.16%	-56.78%	+37.62%
Max Drawdown (1Y) Largest decline over 1 year	-2.23%	-12.14%	+9.91%
Max Drawdown (5Y) Largest decline over 5 years	-18.73%	-25.43%	+6.70%
Max Drawdown (10Y) Largest decline over 10 years	—	-33.92%	—
Current Drawdown Current decline from peak	-1.53%	-6.45%	+4.92%
Average Drawdown Average peak-to-trough decline	-5.91%	-10.75%	+4.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.64%	2.57%	-1.93%

Volatility

BGRN vs. ^GSPC - Volatility Comparison

The current volatility for iShares USD Green Bond ETF (BGRN) is 1.45%, while S&P 500 Index (^GSPC) has a volatility of 5.34%. This indicates that BGRN experiences smaller price fluctuations and is considered to be less risky than ^GSPC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BGRN	^GSPC	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.45%	5.34%	-3.89%
Volatility (6M) Calculated over the trailing 6-month period	2.03%	9.54%	-7.51%
Volatility (1Y) Calculated over the trailing 1-year period	3.55%	18.33%	-14.78%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.46%	16.91%	-11.45%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.03%	18.05%	-13.02%