SUBFX vs. COSIX

Last updated Jun 4, 2026

SUBFX (Carillon Reams Unconstrained Bond Fund) and COSIX (Columbia Strategic Income Fund) are both Nontraditional Bonds funds. Over the past 10 years, SUBFX returned 3.93%/yr vs 3.57%/yr for COSIX. A 0.58 correlation means they provide meaningful diversification when combined. SUBFX charges 0.50%/yr vs 0.92%/yr for COSIX.

Performance

SUBFX vs. COSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Carillon Reams Unconstrained Bond Fund (SUBFX) and Columbia Strategic Income Fund (COSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SUBFX achieves a 0.79% return, which is significantly lower than COSIX's 1.35% return. Over the past 10 years, SUBFX has outperformed COSIX with an annualized return of 3.93%, while COSIX has yielded a comparatively lower 3.57% annualized return.

SUBFX

• 1D: 0.00%
• 1M: -0.03%
• YTD: 0.79%
• 6M: 0.54%
• 1Y: 6.13%
• 3Y*: 6.44%
• 5Y*: 3.55%
• 10Y*: 3.93%

COSIX

• 1D: 0.09%
• 1M: 0.65%
• YTD: 1.35%
• 6M: 1.24%
• 1Y: 5.32%
• 3Y*: 6.53%
• 5Y*: 1.87%
• 10Y*: 3.57%

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

SUBFX vs. COSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SUBFX Carillon Reams Unconstrained Bond Fund	0.79%	10.61%	4.22%	8.53%	-4.74%	-0.32%	11.18%	6.52%	0.53%	2.04%
COSIX Columbia Strategic Income Fund	1.35%	6.98%	4.50%	9.86%	-11.65%	1.34%	7.12%	10.19%	-0.96%	5.48%

Correlation

The correlation between SUBFX and COSIX is 0.88, 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	0.88
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.80
Correlation (10Y) Calculated over the trailing 10-year period	0.69
Correlation (All Time) Calculated using the full available price history since Oct 3, 2011	0.58

Over the past year, SUBFX and COSIX have become more correlated (0.88) than their long-term average of 0.58, meaning their price movements have been converging.

Return for Risk

SUBFX vs. COSIX — Risk / Return Rank

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

SUBFX

SUBFX Risk / Return Rank: 44
SUBFX Sharpe Ratio Rank: 39
SUBFX Sortino Ratio Rank: 41
SUBFX Omega Ratio Rank: 43
SUBFX Calmar Ratio Rank: 48
SUBFX Martin Ratio Rank: 49

COSIX

COSIX Risk / Return Rank: 41
COSIX Sharpe Ratio Rank: 40
COSIX Sortino Ratio Rank: 43
COSIX Omega Ratio Rank: 38
COSIX Calmar Ratio Rank: 41
COSIX Martin Ratio Rank: 45

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.

SUBFX vs. COSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Carillon Reams Unconstrained Bond Fund (SUBFX) and Columbia Strategic Income Fund (COSIX). 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.

	SUBFX	COSIX	Difference
Sharpe ratio Return per unit of total volatility	1.80	1.83	-0.03
Sortino ratio Return per unit of downside risk	2.70	2.74	-0.05
Omega ratio Gain probability vs. loss probability	1.36	1.33	+0.03
Calmar ratio Return relative to maximum drawdown	2.63	2.44	+0.19
Martin ratio Return relative to average drawdown	10.16	9.39	+0.77
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SUBFX vs. COSIX - Sharpe Ratio Comparison

The current SUBFX Sharpe Ratio is 1.80, which is comparable to the COSIX Sharpe Ratio of 1.83. The chart below compares the historical Sharpe Ratios of SUBFX and COSIX, 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

	SUBFX	COSIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.80	1.83	-0.03
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.65	0.41	+0.24
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.75	0.86	-0.11
Sharpe Ratio (All Time) Calculated using the full available price history	0.95	1.01	-0.06

Drawdowns

SUBFX vs. COSIX - Drawdown Comparison

The maximum SUBFX drawdown since its inception was -11.22%, smaller than the maximum COSIX drawdown of -27.69%. Use the drawdown chart below to compare losses from any high point for SUBFX and COSIX.

Drawdown Indicators

	SUBFX	COSIX	Difference
Max Drawdown Largest peak-to-trough decline	-11.22%	-27.69%	+16.47%
Max Drawdown (1Y) Largest decline over 1 year	-2.34%	-2.21%	-0.13%
Max Drawdown (3Y) Largest decline over 3 years	-4.88%	-4.17%	-0.71%
Max Drawdown (5Y) Largest decline over 5 years	-11.17%	-16.88%	+5.71%
Max Drawdown (10Y) Largest decline over 10 years	-11.22%	-16.88%	+5.66%
Current Drawdown Current decline from peak	-1.04%	-0.02%	-1.02%
Average Drawdown Average peak-to-trough decline	-1.46%	-2.47%	+1.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.60%	0.57%	+0.03%

Volatility

SUBFX vs. COSIX - Volatility Comparison

Carillon Reams Unconstrained Bond Fund (SUBFX) has a higher volatility of 1.51% compared to Columbia Strategic Income Fund (COSIX) at 1.04%. This indicates that SUBFX's price experiences larger fluctuations and is considered to be riskier than COSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SUBFX	COSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.51%	1.04%	+0.47%
Volatility (6M) Calculated over the trailing 6-month period	2.78%	2.21%	+0.57%
Volatility (1Y) Calculated over the trailing 1-year period	3.42%	2.95%	+0.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.49%	4.55%	+0.94%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.29%	4.17%	+1.12%

SUBFX vs. COSIX - Expense Ratio Comparison

SUBFX has a 0.50% expense ratio, which is lower than COSIX's 0.92% expense ratio.

Dividends

SUBFX vs. COSIX - Dividend Comparison

SUBFX's dividend yield for the trailing twelve months is around 6.06%, more than COSIX's 4.99% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COSIX Columbia Strategic Income Fund	4.99%	4.94%	5.20%	5.03%	3.56%	3.86%	3.24%	3.71%	4.25%	3.51%	3.09%	4.20%
SUBFX Carillon Reams Unconstrained Bond Fund	6.06%	6.44%	4.92%	4.52%	2.16%	1.96%	3.01%	2.83%	2.06%	1.17%	1.01%	0.52%

Frequently Asked Questions

Can I hold both SUBFX and COSIX in my portfolio?

SUBFX and COSIX have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SUBFX or COSIX?

SUBFX has higher volatility (1.51%) compared to COSIX (1.04%). In terms of maximum drawdown, SUBFX dropped -11.22% vs COSIX's -27.69%.

Which has better risk-adjusted returns?

COSIX currently has the higher Sharpe Ratio (1.83 vs 1.80), 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.