LSIIX vs. VTBNX
LSIIX (Loomis Sayles Investment Grade Bond Fund Class Y) and VTBNX (Vanguard Total Bond Market II Index Fund) are both Total Bond Market funds. Over the past 10 years, LSIIX returned 3.09%/yr vs 1.54%/yr for VTBNX. A 0.76 correlation means they provide meaningful diversification when combined. LSIIX charges 0.54%/yr vs 0.02%/yr for VTBNX.
Performance
LSIIX vs. VTBNX - Performance Comparison
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Returns By Period
In the year-to-date period, LSIIX achieves a 0.46% return, which is significantly higher than VTBNX's 0.33% return. Over the past 10 years, LSIIX has outperformed VTBNX with an annualized return of 3.09%, while VTBNX has yielded a comparatively lower 1.54% annualized return.
LSIIX
- 1D
- 0.21%
- 1M
- 0.94%
- YTD
- 0.46%
- 6M
- 0.56%
- 1Y
- 3.36%
- 3Y*
- 4.56%
- 5Y*
- 0.83%
- 10Y*
- 3.09%
VTBNX
- 1D
- 0.21%
- 1M
- 0.88%
- YTD
- 0.33%
- 6M
- 0.77%
- 1Y
- 4.66%
- 3Y*
- 4.05%
- 5Y*
- 0.02%
- 10Y*
- 1.54%
LSIIX vs. VTBNX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
LSIIX Loomis Sayles Investment Grade Bond Fund Class Y | 0.46% | 5.58% | 2.91% | 7.50% | -11.31% | 0.18% | 11.60% | 9.04% | -0.31% | 6.65% |
VTBNX Vanguard Total Bond Market II Index Fund | 0.33% | 7.18% | 1.32% | 5.68% | -13.12% | -1.82% | 7.39% | 8.71% | -0.27% | 3.62% |
Correlation
The correlation between LSIIX and VTBNX is 0.74, 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 | 0.74 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.85 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.88 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.79 |
Correlation (All Time) Calculated using the full available price history since Jan 22, 2016 | 0.76 |
The correlation between LSIIX and VTBNX shifts across timeframes, from 0.74 (1 year) to 0.88 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
LSIIX vs. VTBNX — Risk / Return Rank
LSIIX
VTBNX
LSIIX vs. VTBNX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Loomis Sayles Investment Grade Bond Fund Class Y (LSIIX) and Vanguard Total Bond Market II Index Fund (VTBNX). 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.
| LSIIX | VTBNX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.20 | ||
| Sortino ratioReturn per unit of downside risk | -0.36 | ||
| Omega ratioGain probability vs. loss probability | 1.18 | 1.21 | -0.03 |
| Calmar ratioReturn relative to maximum drawdown | 1.34 | 1.65 | -0.32 |
| Martin ratioReturn relative to average drawdown | 3.69 | 4.66 | -0.97 |
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Drawdowns
LSIIX vs. VTBNX - Drawdown Comparison
The maximum LSIIX drawdown since its inception was -20.77%, which is greater than VTBNX's maximum drawdown of -18.71%. Use the drawdown chart below to compare losses from any high point for LSIIX and VTBNX.
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Drawdown Indicators
| LSIIX | VTBNX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -20.77% | -18.71% | -2.06% |
Max Drawdown (1Y)Largest decline over 1 year | -2.99% | -2.83% | -0.16% |
Max Drawdown (3Y)Largest decline over 3 years | -5.45% | -5.97% | +0.52% |
Max Drawdown (5Y)Largest decline over 5 years | -15.62% | -18.05% | +2.43% |
Max Drawdown (10Y)Largest decline over 10 years | -15.62% | -18.71% | +3.09% |
Current DrawdownCurrent decline from peak | -1.13% | -2.21% | +1.08% |
Average DrawdownAverage peak-to-trough decline | -2.42% | -4.86% | +2.44% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.03% | 1.00% | +0.03% |
Volatility
LSIIX vs. VTBNX - Volatility Comparison
Loomis Sayles Investment Grade Bond Fund Class Y (LSIIX) and Vanguard Total Bond Market II Index Fund (VTBNX) have volatilities of 1.16% and 1.17%, 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
| LSIIX | VTBNX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.16% | 1.17% | -0.01% |
Volatility (6M)Calculated over the trailing 6-month period | 2.89% | 2.85% | +0.04% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.96% | 3.86% | +0.10% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.29% | 5.96% | -0.67% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.51% | 4.93% | -0.42% |
LSIIX vs. VTBNX - Expense Ratio Comparison
LSIIX has a 0.54% expense ratio, which is higher than VTBNX's 0.02% expense ratio.
Dividends
LSIIX vs. VTBNX - Dividend Comparison
LSIIX's dividend yield for the trailing twelve months is around 3.53%, less than VTBNX's 4.06% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
LSIIX Loomis Sayles Investment Grade Bond Fund Class Y | 3.53% | 3.68% | 4.86% | 4.25% | 3.32% | 4.10% | 8.20% | 3.56% | 2.18% | 4.10% | 6.71% | 3.91% |
VTBNX Vanguard Total Bond Market II Index Fund | 4.06% | 3.95% | 3.77% | 3.13% | 2.54% | 1.82% | 3.12% | 2.79% | 2.56% | 2.52% | 2.55% | 0.00% |
Frequently Asked Questions
LSIIX and VTBNX have a correlation of 0.74, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VTBNX has higher volatility (1.17%) compared to LSIIX (1.16%). In terms of maximum drawdown, LSIIX dropped -20.77% vs VTBNX's -18.71%.
VTBNX currently has the higher Sharpe Ratio (1.21 vs 1.01), 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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