SPLB vs. IGLB
SPLB (SPDR Portfolio Long Term Corporate Bond ETF) and IGLB (iShares 10+ Year Investment Grade Corporate Bond ETF) are both Corporate Bonds funds - SPLB tracks the Bloomberg Barclays Long U.S. Corporate Index while IGLB tracks the ICE BofAML10+ Year US Corporate Index. Both are passively managed. Over the past 10 years, SPLB returned 2.19%/yr vs 2.20%/yr for IGLB. Their correlation of 0.88 suggests significant overlap in exposure. SPLB charges 0.07%/yr vs 0.06%/yr for IGLB.
Performance
SPLB vs. IGLB - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, SPLB achieves a 1.28% return, which is significantly higher than IGLB's 1.19% return. Both investments have delivered pretty close results over the past 10 years, with SPLB having a 2.19% annualized return and IGLB not far ahead at 2.20%.
SPLB
- 1D
- -0.40%
- 1M
- 1.36%
- YTD
- 1.28%
- 6M
- 1.33%
- 1Y
- 6.30%
- 3Y*
- 4.12%
- 5Y*
- -2.19%
- 10Y*
- 2.19%
IGLB
- 1D
- -0.42%
- 1M
- 1.36%
- YTD
- 1.19%
- 6M
- 1.21%
- 1Y
- 6.56%
- 3Y*
- 4.26%
- 5Y*
- -2.01%
- 10Y*
- 2.20%
SPLB vs. IGLB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SPLB SPDR Portfolio Long Term Corporate Bond ETF | 1.28% | 7.05% | -1.74% | 11.20% | -25.68% | -1.99% | 13.47% | 23.49% | -7.35% | 12.26% |
IGLB iShares 10+ Year Investment Grade Corporate Bond ETF | 1.19% | 7.53% | -1.50% | 11.03% | -25.38% | -1.68% | 13.30% | 23.19% | -6.90% | 12.15% |
Correlation
The correlation between SPLB and IGLB is 0.99 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.99 |
Correlation (3Y) Calculated over the trailing 3-year period | 1.00 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.99 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.97 |
Correlation (All Time) Calculated using the full available price history since Dec 9, 2009 | 0.88 |
The correlation between SPLB and IGLB shifts across timeframes, from 0.88 (all time) to 1.00 (3 years), reflecting how their relationship changes across market environments.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
SPLB vs. IGLB — Risk / Return Rank
SPLB
IGLB
SPLB vs. IGLB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for SPDR Portfolio Long Term Corporate Bond ETF (SPLB) and iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB). 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.
| SPLB | IGLB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.05 | ||
| Sortino ratioReturn per unit of downside risk | -0.08 | ||
| Omega ratioGain probability vs. loss probability | 1.14 | 1.15 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 1.17 | 1.27 | -0.10 |
| Martin ratioReturn relative to average drawdown | 2.84 | 3.13 | -0.29 |
Loading charts...
Drawdowns
SPLB vs. IGLB - Drawdown Comparison
The maximum SPLB drawdown since its inception was -34.46%, roughly equal to the maximum IGLB drawdown of -34.12%. Use the drawdown chart below to compare losses from any high point for SPLB and IGLB.
Loading charts...
Drawdown Indicators
| SPLB | IGLB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.46% | -34.12% | -0.34% |
Max Drawdown (1Y)Largest decline over 1 year | -5.42% | -5.19% | -0.23% |
Max Drawdown (3Y)Largest decline over 3 years | -12.91% | -12.87% | -0.04% |
Max Drawdown (5Y)Largest decline over 5 years | -34.46% | -34.12% | -0.34% |
Max Drawdown (10Y)Largest decline over 10 years | -34.46% | -34.12% | -0.34% |
Current DrawdownCurrent decline from peak | -14.23% | -13.41% | -0.82% |
Average DrawdownAverage peak-to-trough decline | -8.02% | -8.12% | +0.10% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.22% | 2.10% | +0.12% |
Volatility
SPLB vs. IGLB - Volatility Comparison
SPDR Portfolio Long Term Corporate Bond ETF (SPLB) and iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) have volatilities of 1.94% and 1.89%, 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.
Loading charts...
Volatility by Period
| SPLB | IGLB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.94% | 1.89% | +0.05% |
Volatility (6M)Calculated over the trailing 6-month period | 5.92% | 5.80% | +0.12% |
Volatility (1Y)Calculated over the trailing 1-year period | 7.96% | 7.76% | +0.20% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 12.69% | 12.38% | +0.31% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 12.96% | 12.55% | +0.41% |
SPLB vs. IGLB - Expense Ratio Comparison
SPLB has a 0.07% expense ratio, which is higher than IGLB's 0.06% 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
SPLB vs. IGLB - Dividend Comparison
SPLB's dividend yield for the trailing twelve months is around 5.36%, more than IGLB's 5.24% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IGLB iShares 10+ Year Investment Grade Corporate Bond ETF | 5.24% | 5.14% | 5.10% | 4.59% | 4.56% | 3.16% | 3.22% | 3.73% | 4.56% | 3.94% | 4.21% | 4.58% |
SPLB SPDR Portfolio Long Term Corporate Bond ETF | 5.36% | 5.25% | 5.20% | 4.60% | 4.53% | 3.00% | 3.01% | 3.79% | 4.50% | 4.06% | 4.34% | 4.70% |
Frequently Asked Questions
With a correlation of 0.99, SPLB and IGLB move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
SPLB has higher volatility (1.94%) compared to IGLB (1.89%). In terms of maximum drawdown, SPLB dropped -34.46% vs IGLB's -34.12%.
On 10-year performance, IGLB leads with 2.20% vs 2.19% for SPLB. On fees, IGLB is cheaper at 0.06% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, IGLB has performed better with a 2.20% return vs 2.19%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IGLB is cheaper with a 0.06% expense ratio, compared with 0.07% for SPLB.
SPLB has the higher dividend yield at 5.36%, compared with 5.24% for IGLB.
SPLB tracks Bloomberg Barclays Long U.S. Corporate Index, while IGLB tracks ICE BofAML10+ Year US Corporate Index. They also come from different issuers: State Street and iShares. Their fees differ too: 0.07% for SPLB and 0.06% for IGLB.
IGLB currently has the higher Sharpe Ratio (0.85 vs 0.80), 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.
Find the right allocation for SPLB and IGLB
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer