SUSC vs. TLT
SUSC (iShares ESG Aware USD Corporate Bond ETF) and TLT (iShares 20+ Year Treasury Bond ETF) are both exchange-traded funds - SUSC is a Corporate Bonds fund tracking the Bloomberg MSCI US Corporate ESG Focus Index, while TLT is a Government Bonds fund tracking the ICE U.S. Treasury 20+ Year Bond Index. Both are passively managed. Over the past 5 years, SUSC returned 0.34%/yr vs -6.31%/yr for TLT. A 0.77 correlation means they provide meaningful diversification when combined. SUSC charges 0.18%/yr vs 0.15%/yr for TLT.
Performance
SUSC vs. TLT - Performance Comparison
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Returns By Period
In the year-to-date period, SUSC achieves a 0.47% return, which is significantly higher than TLT's -0.27% return.
SUSC
- 1D
- -0.13%
- 1M
- 0.62%
- YTD
- 0.47%
- 6M
- 0.32%
- 1Y
- 5.87%
- 3Y*
- 5.09%
- 5Y*
- 0.34%
- 10Y*
- —
TLT
- 1D
- -0.40%
- 1M
- 0.81%
- YTD
- -0.27%
- 6M
- -2.02%
- 1Y
- 4.93%
- 3Y*
- -1.80%
- 5Y*
- -6.31%
- 10Y*
- -1.66%
SUSC vs. TLT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SUSC iShares ESG Aware USD Corporate Bond ETF | 0.47% | 7.57% | 1.91% | 8.58% | -15.95% | -1.57% | 9.57% | 14.43% | -3.13% | 1.74% |
TLT iShares 20+ Year Treasury Bond ETF | -0.27% | 4.25% | -8.05% | 2.77% | -31.23% | -4.60% | 18.15% | 14.12% | -1.61% | 2.63% |
Correlation
The correlation between SUSC and TLT is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.89 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.91 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.88 |
Correlation (All Time) Calculated using the full available price history since Jul 21, 2017 | 0.77 |
The correlation between SUSC and TLT shifts across timeframes, from 0.77 (all time) to 0.91 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
SUSC vs. TLT — Risk / Return Rank
SUSC
TLT
SUSC vs. TLT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares ESG Aware USD Corporate Bond ETF (SUSC) and iShares 20+ Year Treasury Bond ETF (TLT). 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.
| SUSC | TLT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.84 | ||
| Sortino ratioReturn per unit of downside risk | +1.19 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 1.09 | +0.14 |
| Calmar ratioReturn relative to maximum drawdown | 2.05 | 0.65 | +1.40 |
| Martin ratioReturn relative to average drawdown | 6.37 | 1.63 | +4.74 |
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
| SUSC | TLT | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.34 | 0.51 | +0.84 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.05 | -0.40 | +0.45 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | -0.11 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.30 | 0.26 | +0.05 |
Drawdowns
SUSC vs. TLT - Drawdown Comparison
The maximum SUSC drawdown since its inception was -22.42%, smaller than the maximum TLT drawdown of -48.35%. Use the drawdown chart below to compare losses from any high point for SUSC and TLT.
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Drawdown Indicators
| SUSC | TLT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -22.42% | -48.35% | +25.93% |
Max Drawdown (1Y)Largest decline over 1 year | -2.87% | -7.58% | +4.71% |
Max Drawdown (3Y)Largest decline over 3 years | -6.57% | -19.18% | +12.61% |
Max Drawdown (5Y)Largest decline over 5 years | -22.42% | -43.70% | +21.28% |
Max Drawdown (10Y)Largest decline over 10 years | — | -48.35% | — |
Current DrawdownCurrent decline from peak | -1.36% | -40.44% | +39.08% |
Average DrawdownAverage peak-to-trough decline | -5.89% | -13.82% | +7.93% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.92% | 3.04% | -2.12% |
Volatility
SUSC vs. TLT - Volatility Comparison
The current volatility for iShares ESG Aware USD Corporate Bond ETF (SUSC) is 1.40%, while iShares 20+ Year Treasury Bond ETF (TLT) has a volatility of 2.76%. This indicates that SUSC experiences smaller price fluctuations and is considered to be less risky than TLT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SUSC | TLT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.40% | 2.76% | -1.36% |
Volatility (6M)Calculated over the trailing 6-month period | 3.21% | 6.50% | -3.29% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.39% | 9.77% | -5.38% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 7.19% | 15.87% | -8.68% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 7.63% | 14.91% | -7.28% |
SUSC vs. TLT - Expense Ratio Comparison
SUSC has a 0.18% expense ratio, which is higher than TLT's 0.15% 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
SUSC vs. TLT - Dividend Comparison
SUSC's dividend yield for the trailing twelve months is around 4.49%, less than TLT's 4.59% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SUSC iShares ESG Aware USD Corporate Bond ETF | 4.49% | 4.37% | 4.34% | 3.83% | 2.97% | 2.21% | 2.19% | 3.07% | 3.33% | 1.33% | 0.00% | 0.00% |
TLT iShares 20+ Year Treasury Bond ETF | 4.59% | 4.43% | 4.30% | 3.38% | 2.67% | 1.50% | 1.50% | 2.27% | 2.63% | 2.43% | 2.60% | 2.61% |
Frequently Asked Questions
SUSC and TLT have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TLT has higher volatility (2.76%) compared to SUSC (1.40%). In terms of maximum drawdown, SUSC dropped -22.42% vs TLT's -48.35%.
On 5-year performance, SUSC leads with 0.34% vs -6.31% for TLT. On fees, TLT is cheaper at 0.15% per year. On volatility, SUSC has been the lower-risk option at 1.40%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, SUSC has performed better with a 0.34% return vs -6.31%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
TLT is cheaper with a 0.15% expense ratio, compared with 0.18% for SUSC.
TLT has the higher dividend yield at 4.59%, compared with 4.49% for SUSC.
SUSC is categorized as Corporate Bonds, while TLT is Government Bonds. SUSC tracks Bloomberg MSCI US Corporate ESG Focus Index, while TLT tracks ICE U.S. Treasury 20+ Year Bond Index. Their fees differ too: 0.18% for SUSC and 0.15% for TLT.
SUSC currently has the higher Sharpe Ratio (1.34 vs 0.51), 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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