KORP vs. IGLB
KORP (American Century Diversified Corporate Bond ETF) and IGLB (iShares 10+ Year Investment Grade Corporate Bond ETF) are both Corporate Bonds funds. KORP is actively managed, while IGLB is passively managed. Over the past 5 years, KORP returned 1.79%/yr vs -2.01%/yr for IGLB. Their correlation of 0.81 suggests significant overlap in exposure. KORP charges 0.29%/yr vs 0.06%/yr for IGLB.
Performance
KORP vs. IGLB - Performance Comparison
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Returns By Period
In the year-to-date period, KORP achieves a 0.94% return, which is significantly lower than IGLB's 1.19% return.
KORP
- 1D
- -0.17%
- 1M
- 0.83%
- YTD
- 0.94%
- 6M
- 1.15%
- 1Y
- 5.71%
- 3Y*
- 5.95%
- 5Y*
- 1.79%
- 10Y*
- —
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%
KORP vs. IGLB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
KORP American Century Diversified Corporate Bond ETF | 0.94% | 8.14% | 3.82% | 7.40% | -10.04% | -0.55% | 6.99% | 10.08% | -1.32% |
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% | -6.38% |
Correlation
The correlation between KORP and IGLB is 0.97 - 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 | 0.97 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.93 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.90 |
Correlation (All Time) Calculated using the full available price history since Jan 16, 2018 | 0.81 |
The correlation between KORP and IGLB shifts across timeframes, from 0.81 (all time) to 0.97 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
KORP vs. IGLB — Risk / Return Rank
KORP
IGLB
KORP vs. IGLB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Century Diversified Corporate Bond ETF (KORP) 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.
| KORP | IGLB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.48 | ||
| Sortino ratioReturn per unit of downside risk | +0.68 | ||
| Omega ratioGain probability vs. loss probability | 1.24 | 1.15 | +0.09 |
| Calmar ratioReturn relative to maximum drawdown | 1.78 | 1.27 | +0.51 |
| Martin ratioReturn relative to average drawdown | 5.77 | 3.13 | +2.64 |
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Drawdowns
KORP vs. IGLB - Drawdown Comparison
The maximum KORP drawdown since its inception was -14.90%, smaller than the maximum IGLB drawdown of -34.12%. Use the drawdown chart below to compare losses from any high point for KORP and IGLB.
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Drawdown Indicators
| KORP | IGLB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -14.90% | -34.12% | +19.22% |
Max Drawdown (1Y)Largest decline over 1 year | -3.22% | -5.19% | +1.97% |
Max Drawdown (3Y)Largest decline over 3 years | -5.04% | -12.87% | +7.83% |
Max Drawdown (5Y)Largest decline over 5 years | -14.90% | -34.12% | +19.22% |
Max Drawdown (10Y)Largest decline over 10 years | — | -34.12% | — |
Current DrawdownCurrent decline from peak | -0.83% | -13.41% | +12.58% |
Average DrawdownAverage peak-to-trough decline | -3.23% | -8.12% | +4.89% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.99% | 2.10% | -1.11% |
Volatility
KORP vs. IGLB - Volatility Comparison
The current volatility for American Century Diversified Corporate Bond ETF (KORP) is 1.14%, while iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) has a volatility of 1.89%. This indicates that KORP experiences smaller price fluctuations and is considered to be less risky than IGLB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| KORP | IGLB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.14% | 1.89% | -0.75% |
Volatility (6M)Calculated over the trailing 6-month period | 3.37% | 5.80% | -2.43% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.32% | 7.76% | -3.44% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.37% | 12.38% | -7.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.91% | 12.55% | -7.64% |
KORP vs. IGLB - Expense Ratio Comparison
KORP has a 0.29% expense ratio, which is higher than IGLB's 0.06% expense ratio.
Dividends
KORP vs. IGLB - Dividend Comparison
KORP's dividend yield for the trailing twelve months is around 5.09%, less 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% |
KORP American Century Diversified Corporate Bond ETF | 5.09% | 4.98% | 5.08% | 4.42% | 2.89% | 1.86% | 3.22% | 3.20% | 2.97% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
With a correlation of 0.97, KORP 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.
IGLB has higher volatility (1.89%) compared to KORP (1.14%). In terms of maximum drawdown, KORP dropped -14.90% vs IGLB's -34.12%.
On 5-year performance, KORP leads with 1.79% vs -2.01% for IGLB. On fees, IGLB is cheaper at 0.06% per year. On volatility, KORP has been the lower-risk option at 1.14%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, KORP has performed better with a 1.79% return vs -2.01%. 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 0.29% for KORP.
IGLB has the higher dividend yield at 5.24%, compared with 5.09% for KORP.
They also come from different issuers: American Century and iShares. Their fees differ too: 0.29% for KORP and 0.06% for IGLB.
KORP currently has the higher Sharpe Ratio (1.33 vs 0.85), 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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