SIDCX vs. BFCAX

Last updated Jun 5, 2026

SIDCX (SEI Institutional Investments Trust Intermediate Duration Credit Fund) and BFCAX (American Funds Corporate Bond Fund) are both Corporate Bonds funds. Over the past 5 years, SIDCX returned -0.03%/yr vs -0.37%/yr for BFCAX. With a 0.95 correlation, they move nearly in lockstep. SIDCX charges 0.32%/yr vs 0.70%/yr for BFCAX.

Performance

SIDCX vs. BFCAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SEI Institutional Investments Trust Intermediate Duration Credit Fund (SIDCX) and American Funds Corporate Bond Fund (BFCAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SIDCX achieves a 0.37% return, which is significantly higher than BFCAX's 0.14% return.

SIDCX

• 1D: -0.34%
• 1M: 0.29%
• YTD: 0.37%
• 6M: 0.32%
• 1Y: 5.01%
• 3Y*: 4.50%
• 5Y*: -0.03%
• 10Y*: 2.25%

BFCAX

• 1D: -0.32%
• 1M: 0.14%
• YTD: 0.14%
• 6M: 0.07%
• 1Y: 4.25%
• 3Y*: 4.20%
• 5Y*: -0.37%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

SIDCX vs. BFCAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SIDCX SEI Institutional Investments Trust Intermediate Duration Credit Fund	0.37%	7.40%	1.92%	6.58%	-15.78%	-1.66%	10.68%	12.43%	-1.61%	5.66%
BFCAX American Funds Corporate Bond Fund	0.14%	6.67%	1.71%	6.85%	-16.51%	-2.15%	13.05%	13.21%	-2.50%	5.61%

Correlation

The correlation between SIDCX and BFCAX 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	0.97
Correlation (5Y) Calculated over the trailing 5-year period	0.98
Correlation (All Time) Calculated using the full available price history since Jan 4, 2017	0.95

The correlation between SIDCX and BFCAX has been stable across timeframes, ranging from 0.95 to 0.98 - a consistent structural relationship.

Return for Risk

SIDCX vs. BFCAX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

SIDCX

SIDCX Risk / Return Rank: 23
SIDCX Sharpe Ratio Rank: 22
SIDCX Sortino Ratio Rank: 23
SIDCX Omega Ratio Rank: 21
SIDCX Calmar Ratio Rank: 26
SIDCX Martin Ratio Rank: 24

BFCAX

BFCAX Risk / Return Rank: 17
BFCAX Sharpe Ratio Rank: 17
BFCAX Sortino Ratio Rank: 17
BFCAX Omega Ratio Rank: 15
BFCAX Calmar Ratio Rank: 20
BFCAX Martin Ratio Rank: 18

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

SIDCX vs. BFCAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SEI Institutional Investments Trust Intermediate Duration Credit Fund (SIDCX) and American Funds Corporate Bond Fund (BFCAX). 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.

	SIDCX	BFCAX	Difference
Sharpe ratio: Return per unit of total volatility	1.31	1.12	+0.19
Sortino ratio: Return per unit of downside risk	1.97	1.66	+0.31
Omega ratio: Gain probability vs. loss probability	1.23	1.20	+0.04
Calmar ratio: Return relative to maximum drawdown	1.82	1.59	+0.23
Martin ratio: Return relative to average drawdown	5.72	4.65	+1.07
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SIDCX vs. BFCAX - Sharpe Ratio Comparison

The current SIDCX Sharpe Ratio is 1.31, which is comparable to the BFCAX Sharpe Ratio of 1.12. The chart below compares the historical Sharpe Ratios of SIDCX and BFCAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	SIDCX	BFCAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.31	1.12	+0.19
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.00	-0.06	+0.05
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.40	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.41	0.40	+0.01

Drawdowns

SIDCX vs. BFCAX - Drawdown Comparison

The maximum SIDCX drawdown since its inception was -21.47%, smaller than the maximum BFCAX drawdown of -23.01%. Use the drawdown chart below to compare losses from any high point for SIDCX and BFCAX.

Drawdown Indicators

	SIDCX	BFCAX	Difference
Max Drawdown Largest peak-to-trough decline	-21.47%	-23.01%	+1.54%
Max Drawdown (1Y) Largest decline over 1 year	-3.10%	-3.11%	+0.01%
Max Drawdown (3Y) Largest decline over 3 years	-6.38%	-6.92%	+0.54%
Max Drawdown (5Y) Largest decline over 5 years	-21.39%	-22.55%	+1.16%
Max Drawdown (10Y) Largest decline over 10 years	-21.47%	—	—
Current Drawdown Current decline from peak	-3.02%	-5.15%	+2.13%
Average Drawdown Average peak-to-trough decline	-5.22%	-6.45%	+1.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.98%	1.06%	-0.08%

Volatility

SIDCX vs. BFCAX - Volatility Comparison

SEI Institutional Investments Trust Intermediate Duration Credit Fund (SIDCX) and American Funds Corporate Bond Fund (BFCAX) have volatilities of 1.52% and 1.48%, 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.

Volatility by Period

	SIDCX	BFCAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.52%	1.48%	+0.04%
Volatility (6M) Calculated over the trailing 6-month period	3.16%	3.18%	-0.02%
Volatility (1Y) Calculated over the trailing 1-year period	4.29%	4.39%	-0.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.42%	6.71%	-0.29%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.70%	5.99%	-0.29%

SIDCX vs. BFCAX - Expense Ratio Comparison

SIDCX has a 0.32% expense ratio, which is lower than BFCAX's 0.70% expense ratio.

Dividends

SIDCX vs. BFCAX - Dividend Comparison

SIDCX's dividend yield for the trailing twelve months is around 4.71%, more than BFCAX's 4.21% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BFCAX American Funds Corporate Bond Fund	4.21%	4.20%	4.06%	2.82%	1.95%	1.50%	4.43%	3.44%	2.63%	2.68%	0.00%	0.00%
SIDCX SEI Institutional Investments Trust Intermediate Duration Credit Fund	4.71%	4.61%	4.20%	2.99%	2.36%	3.57%	4.93%	3.07%	3.16%	2.77%	2.75%	1.89%

Frequently Asked Questions

Can I hold both SIDCX and BFCAX in my portfolio?

With a correlation of 0.97, SIDCX and BFCAX 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.

Which is riskier, SIDCX or BFCAX?

SIDCX has higher volatility (1.52%) compared to BFCAX (1.48%). In terms of maximum drawdown, SIDCX dropped -21.47% vs BFCAX's -23.01%.

Which has better risk-adjusted returns?

SIDCX currently has the higher Sharpe Ratio (1.31 vs 1.12), 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.