USIG vs. SWAGX
USIG (iShares Broad USD Investment Grade Corporate Bond ETF) and SWAGX (Schwab U.S. Aggregate Bond Index Fund) are both funds - USIG is a Corporate Bonds fund tracking the ICE BofA US Corporate, while SWAGX is a Total Bond Market fund tracking the Bloomberg US Aggregate Bond Index. Both are passively managed. Over the past 5 years, USIG returned 0.59%/yr vs -0.16%/yr for SWAGX. Their correlation of 0.85 suggests significant overlap in exposure. Both charge a 0.04% expense ratio.
Performance
USIG vs. SWAGX - Performance Comparison
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Returns By Period
In the year-to-date period, USIG achieves a 0.71% return, which is significantly higher than SWAGX's 0.38% return.
USIG
- 1D
- -0.20%
- 1M
- 0.66%
- YTD
- 0.71%
- 6M
- 0.83%
- 1Y
- 5.29%
- 3Y*
- 5.41%
- 5Y*
- 0.59%
- 10Y*
- 2.57%
SWAGX
- 1D
- 0.22%
- 1M
- 0.81%
- YTD
- 0.38%
- 6M
- 0.74%
- 1Y
- 4.66%
- 3Y*
- 4.01%
- 5Y*
- -0.16%
- 10Y*
- —
USIG vs. SWAGX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
USIG iShares Broad USD Investment Grade Corporate Bond ETF | 0.71% | 7.86% | 2.56% | 8.71% | -15.30% | -1.34% | 9.44% | 13.99% | -2.21% | 4.87% |
SWAGX Schwab U.S. Aggregate Bond Index Fund | 0.38% | 7.11% | 1.38% | 5.46% | -13.62% | -2.29% | 7.39% | 8.64% | -0.11% | 2.62% |
Correlation
The correlation between USIG and SWAGX is 0.87, 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 | 0.87 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.91 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.90 |
Correlation (All Time) Calculated using the full available price history since Feb 23, 2017 | 0.85 |
The correlation between USIG and SWAGX has been stable across timeframes, ranging from 0.85 to 0.91 - a consistent structural relationship.
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Return for Risk
USIG vs. SWAGX — Risk / Return Rank
USIG
SWAGX
USIG vs. SWAGX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Broad USD Investment Grade Corporate Bond ETF (USIG) and Schwab U.S. Aggregate Bond Index Fund (SWAGX). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| USIG | SWAGX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.08 | ||
| Sortino ratioReturn per unit of downside risk | +0.07 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 1.21 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | 1.90 | 1.57 | +0.33 |
| Martin ratioReturn relative to average drawdown | 6.05 | 4.48 | +1.57 |
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Drawdowns
USIG vs. SWAGX - Drawdown Comparison
The maximum USIG drawdown since its inception was -22.21%, which is greater than SWAGX's maximum drawdown of -19.68%. Use the drawdown chart below to compare losses from any high point for USIG and SWAGX.
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Drawdown Indicators
| USIG | SWAGX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -22.21% | -19.68% | -2.53% |
Max Drawdown (1Y)Largest decline over 1 year | -2.79% | -3.05% | +0.26% |
Max Drawdown (3Y)Largest decline over 3 years | -6.10% | -6.14% | +0.04% |
Max Drawdown (5Y)Largest decline over 5 years | -21.45% | -18.76% | -2.69% |
Max Drawdown (10Y)Largest decline over 10 years | -21.45% | — | — |
Current DrawdownCurrent decline from peak | -0.81% | -3.38% | +2.57% |
Average DrawdownAverage peak-to-trough decline | -3.41% | -5.67% | +2.26% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.88% | 1.07% | -0.19% |
Volatility
USIG vs. SWAGX - Volatility Comparison
iShares Broad USD Investment Grade Corporate Bond ETF (USIG) and Schwab U.S. Aggregate Bond Index Fund (SWAGX) have volatilities of 1.14% and 1.14%, 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
| USIG | SWAGX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.14% | 1.14% | 0.00% |
Volatility (6M)Calculated over the trailing 6-month period | 3.13% | 2.94% | +0.19% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.10% | 3.95% | +0.15% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.82% | 6.09% | +0.73% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 6.83% | 5.11% | +1.72% |
USIG vs. SWAGX - Expense Ratio Comparison
Both USIG and SWAGX have an expense ratio of 0.04%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
USIG vs. SWAGX - Dividend Comparison
USIG's dividend yield for the trailing twelve months is around 4.73%, more than SWAGX's 4.13% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SWAGX Schwab U.S. Aggregate Bond Index Fund | 4.13% | 4.02% | 3.88% | 3.22% | 1.93% | 1.56% | 2.47% | 2.87% | 2.80% | 1.98% | 0.00% | 0.00% |
USIG iShares Broad USD Investment Grade Corporate Bond ETF | 4.73% | 4.62% | 4.51% | 3.94% | 3.14% | 2.33% | 2.82% | 3.37% | 3.44% | 3.03% | 2.87% | 3.24% |
Frequently Asked Questions
USIG and SWAGX have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SWAGX has higher volatility (1.14%) compared to USIG (1.14%). In terms of maximum drawdown, USIG dropped -22.21% vs SWAGX's -19.68%.
USIG currently has the higher Sharpe Ratio (1.30 vs 1.21), 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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