TUNIX vs. DFLEX

Last updated Jun 4, 2026

TUNIX (Transamerica Unconstrained Bond) and DFLEX (DoubleLine Flexible Income Fund) are both Nontraditional Bonds funds. Over the past 10 years, TUNIX returned 3.56%/yr vs 3.75%/yr for DFLEX. At a 0.49 correlation, their price movements are largely independent. TUNIX charges 0.80%/yr vs 0.74%/yr for DFLEX.

Performance

TUNIX vs. DFLEX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Transamerica Unconstrained Bond (TUNIX) and DoubleLine Flexible Income Fund (DFLEX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TUNIX achieves a 1.35% return, which is significantly lower than DFLEX's 1.61% return. Over the past 10 years, TUNIX has underperformed DFLEX with an annualized return of 3.56%, while DFLEX has yielded a comparatively higher 3.75% annualized return.

TUNIX

• 1D: 0.00%
• 1M: 0.66%
• YTD: 1.35%
• 6M: 1.88%
• 1Y: 7.01%
• 3Y*: 6.18%
• 5Y*: 2.29%
• 10Y*: 3.56%

DFLEX

• 1D: 0.00%
• 1M: 0.45%
• YTD: 1.61%
• 6M: 1.94%
• 1Y: 5.66%
• 3Y*: 7.49%
• 5Y*: 3.23%
• 10Y*: 3.75%

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

TUNIX vs. DFLEX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TUNIX Transamerica Unconstrained Bond	1.35%	8.00%	4.68%	5.41%	-7.40%	2.00%	7.25%	8.44%	-3.36%	6.12%
DFLEX DoubleLine Flexible Income Fund	1.61%	6.58%	8.65%	7.84%	-8.48%	3.79%	2.93%	7.21%	0.10%	5.27%

Correlation

The correlation between TUNIX and DFLEX is 0.64, 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	0.64
Correlation (3Y) Calculated over the trailing 3-year period	0.61
Correlation (5Y) Calculated over the trailing 5-year period	0.60
Correlation (10Y) Calculated over the trailing 10-year period	0.50
Correlation (All Time) Calculated using the full available price history since Jan 5, 2015	0.49

The correlation between TUNIX and DFLEX shifts across timeframes, from 0.49 (all time) to 0.64 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

TUNIX vs. DFLEX — Risk / Return Rank

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

TUNIX

TUNIX Risk / Return Rank: 68
TUNIX Sharpe Ratio Rank: 56
TUNIX Sortino Ratio Rank: 79
TUNIX Omega Ratio Rank: 76
TUNIX Calmar Ratio Rank: 61
TUNIX Martin Ratio Rank: 68

DFLEX

DFLEX Risk / Return Rank: 98
DFLEX Sharpe Ratio Rank: 99
DFLEX Sortino Ratio Rank: 99
DFLEX Omega Ratio Rank: 98
DFLEX Calmar Ratio Rank: 96
DFLEX Martin Ratio Rank: 97

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.

TUNIX vs. DFLEX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Transamerica Unconstrained Bond (TUNIX) and DoubleLine Flexible Income Fund (DFLEX). 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.

	TUNIX	DFLEX	Difference
Sharpe ratio Return per unit of total volatility	2.22	4.36	-2.14
Sortino ratio Return per unit of downside risk	3.80	7.75	-3.95
Omega ratio Gain probability vs. loss probability	1.50	2.35	-0.85
Calmar ratio Return relative to maximum drawdown	3.00	6.23	-3.23
Martin ratio Return relative to average drawdown	13.15	28.16	-15.00
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TUNIX vs. DFLEX - Sharpe Ratio Comparison

The current TUNIX Sharpe Ratio is 2.22, which is lower than the DFLEX Sharpe Ratio of 4.36. The chart below compares the historical Sharpe Ratios of TUNIX and DFLEX, 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

	TUNIX	DFLEX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.22	4.36	-2.14
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.49	1.68	-1.19
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.86	1.38	-0.52
Sharpe Ratio (All Time) Calculated using the full available price history	0.83	1.38	-0.56

Drawdowns

TUNIX vs. DFLEX - Drawdown Comparison

The maximum TUNIX drawdown since its inception was -14.31%, smaller than the maximum DFLEX drawdown of -17.29%. Use the drawdown chart below to compare losses from any high point for TUNIX and DFLEX.

Drawdown Indicators

	TUNIX	DFLEX	Difference
Max Drawdown Largest peak-to-trough decline	-14.31%	-17.29%	+2.98%
Max Drawdown (1Y) Largest decline over 1 year	-2.39%	-0.91%	-1.48%
Max Drawdown (3Y) Largest decline over 3 years	-3.25%	-1.15%	-2.10%
Max Drawdown (5Y) Largest decline over 5 years	-14.11%	-11.00%	-3.11%
Max Drawdown (10Y) Largest decline over 10 years	-14.31%	-17.29%	+2.98%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-3.04%	-1.55%	-1.49%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.54%	0.20%	+0.34%

Volatility

TUNIX vs. DFLEX - Volatility Comparison

Transamerica Unconstrained Bond (TUNIX) has a higher volatility of 1.20% compared to DoubleLine Flexible Income Fund (DFLEX) at 0.45%. This indicates that TUNIX's price experiences larger fluctuations and is considered to be riskier than DFLEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TUNIX	DFLEX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.20%	0.45%	+0.75%
Volatility (6M) Calculated over the trailing 6-month period	2.57%	0.99%	+1.58%
Volatility (1Y) Calculated over the trailing 1-year period	3.23%	1.31%	+1.92%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.66%	1.93%	+2.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.17%	2.73%	+1.44%

TUNIX vs. DFLEX - Expense Ratio Comparison

TUNIX has a 0.80% expense ratio, which is higher than DFLEX's 0.74% expense ratio.

Dividends

TUNIX vs. DFLEX - Dividend Comparison

TUNIX's dividend yield for the trailing twelve months is around 6.47%, more than DFLEX's 5.54% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DFLEX DoubleLine Flexible Income Fund	5.54%	5.68%	6.05%	5.95%	4.72%	3.86%	3.96%	4.46%	4.46%	3.82%	3.75%	4.32%
TUNIX Transamerica Unconstrained Bond	6.47%	6.17%	7.06%	3.61%	2.26%	8.72%	2.95%	3.84%	4.15%	2.55%	3.79%	3.44%

Frequently Asked Questions

Can I hold both TUNIX and DFLEX in my portfolio?

TUNIX and DFLEX have a correlation of 0.64, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TUNIX or DFLEX?

TUNIX has higher volatility (1.20%) compared to DFLEX (0.45%). In terms of maximum drawdown, TUNIX dropped -14.31% vs DFLEX's -17.29%.

Which has better risk-adjusted returns?

DFLEX currently has the higher Sharpe Ratio (4.36 vs 2.22), 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.