IMOAX vs. TIBIX

Last updated Jun 4, 2026

IMOAX (Transamerica Asset Allocation Moderate Portfolio Fund) and TIBIX (Thornburg Investment Income Builder Fund Class I) are both Diversified Portfolio funds. Over the past 10 years, IMOAX returned 6.86%/yr vs 12.73%/yr for TIBIX. Their correlation of 0.82 suggests significant overlap in exposure. IMOAX charges 0.47%/yr vs 0.93%/yr for TIBIX.

Performance

IMOAX vs. TIBIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Transamerica Asset Allocation Moderate Portfolio Fund (IMOAX) and Thornburg Investment Income Builder Fund Class I (TIBIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IMOAX achieves a 5.63% return, which is significantly lower than TIBIX's 17.96% return. Over the past 10 years, IMOAX has underperformed TIBIX with an annualized return of 6.86%, while TIBIX has yielded a comparatively higher 12.73% annualized return.

IMOAX

• 1D: 0.15%
• 1M: 3.06%
• YTD: 5.63%
• 6M: 6.11%
• 1Y: 16.27%
• 3Y*: 12.46%
• 5Y*: 5.33%
• 10Y*: 6.86%

TIBIX

• 1D: 0.65%
• 1M: 3.13%
• YTD: 17.96%
• 6M: 21.37%
• 1Y: 39.83%
• 3Y*: 26.83%
• 5Y*: 16.44%
• 10Y*: 12.73%

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

IMOAX vs. TIBIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IMOAX Transamerica Asset Allocation Moderate Portfolio Fund	5.63%	14.86%	9.81%	12.66%	-16.03%	7.92%	14.66%	14.68%	-6.22%	12.45%
TIBIX Thornburg Investment Income Builder Fund Class I	17.96%	37.01%	13.48%	18.28%	-7.69%	20.36%	-0.40%	18.01%	-4.31%	15.23%

Correlation

The correlation between IMOAX and TIBIX is 0.60, 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	0.60
Correlation (3Y) Calculated over the trailing 3-year period	0.68
Correlation (5Y) Calculated over the trailing 5-year period	0.74
Correlation (10Y) Calculated over the trailing 10-year period	0.77
Correlation (All Time) Calculated using the full available price history since Nov 4, 2003	0.82

Over the past year, the correlation between IMOAX and TIBIX has dropped to 0.60 - well below their long-term average of 0.82, suggesting their price drivers have been diverging.

Return for Risk

IMOAX vs. TIBIX — Risk / Return Rank

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

IMOAX

IMOAX Risk / Return Rank: 55
IMOAX Sharpe Ratio Rank: 53
IMOAX Sortino Ratio Rank: 55
IMOAX Omega Ratio Rank: 54
IMOAX Calmar Ratio Rank: 50
IMOAX Martin Ratio Rank: 60

TIBIX

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

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.

IMOAX vs. TIBIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Transamerica Asset Allocation Moderate Portfolio Fund (IMOAX) and Thornburg Investment Income Builder Fund Class I (TIBIX). 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.

	IMOAX	TIBIX	Difference
Sharpe ratio Return per unit of total volatility	2.16	4.77	-2.61
Sortino ratio Return per unit of downside risk	3.13	6.85	-3.73
Omega ratio Gain probability vs. loss probability	1.41	1.96	-0.56
Calmar ratio Return relative to maximum drawdown	2.69	7.48	-4.79
Martin ratio Return relative to average drawdown	11.98	29.20	-17.22
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IMOAX vs. TIBIX - Sharpe Ratio Comparison

The current IMOAX Sharpe Ratio is 2.16, which is lower than the TIBIX Sharpe Ratio of 4.77. The chart below compares the historical Sharpe Ratios of IMOAX and TIBIX, 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

	IMOAX	TIBIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.16	4.77	-2.61
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.58	1.48	-0.90
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.77	0.95	-0.18
Sharpe Ratio (All Time) Calculated using the full available price history	0.61	0.77	-0.16

Drawdowns

IMOAX vs. TIBIX - Drawdown Comparison

The maximum IMOAX drawdown since its inception was -37.71%, smaller than the maximum TIBIX drawdown of -48.88%. Use the drawdown chart below to compare losses from any high point for IMOAX and TIBIX.

Drawdown Indicators

	IMOAX	TIBIX	Difference
Max Drawdown Largest peak-to-trough decline	-37.71%	-48.88%	+11.17%
Max Drawdown (1Y) Largest decline over 1 year	-6.18%	-5.39%	-0.79%
Max Drawdown (3Y) Largest decline over 3 years	-9.37%	-9.23%	-0.14%
Max Drawdown (5Y) Largest decline over 5 years	-22.51%	-20.79%	-1.72%
Max Drawdown (10Y) Largest decline over 10 years	-22.51%	-34.85%	+12.34%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-4.91%	-5.96%	+1.05%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.39%	1.38%	+0.01%

Volatility

IMOAX vs. TIBIX - Volatility Comparison

The current volatility for Transamerica Asset Allocation Moderate Portfolio Fund (IMOAX) is 2.37%, while Thornburg Investment Income Builder Fund Class I (TIBIX) has a volatility of 3.12%. This indicates that IMOAX experiences smaller price fluctuations and is considered to be less risky than TIBIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IMOAX	TIBIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.37%	3.12%	-0.75%
Volatility (6M) Calculated over the trailing 6-month period	6.20%	6.99%	-0.79%
Volatility (1Y) Calculated over the trailing 1-year period	7.70%	8.46%	-0.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.18%	11.16%	-1.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	8.96%	13.50%	-4.54%

IMOAX vs. TIBIX - Expense Ratio Comparison

IMOAX has a 0.47% expense ratio, which is lower than TIBIX's 0.93% expense ratio.

Dividends

IMOAX vs. TIBIX - Dividend Comparison

IMOAX's dividend yield for the trailing twelve months is around 5.97%, more than TIBIX's 5.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IMOAX Transamerica Asset Allocation Moderate Portfolio Fund	5.97%	6.31%	4.98%	3.65%	1.55%	8.17%	4.08%	5.74%	10.16%	7.86%	5.53%	6.74%
TIBIX Thornburg Investment Income Builder Fund Class I	5.03%	5.83%	5.67%	4.89%	5.89%	5.33%	4.31%	4.46%	4.77%	4.52%	4.14%	4.66%

Frequently Asked Questions

Can I hold both IMOAX and TIBIX in my portfolio?

IMOAX and TIBIX have a correlation of 0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IMOAX or TIBIX?

TIBIX has higher volatility (3.12%) compared to IMOAX (2.37%). In terms of maximum drawdown, IMOAX dropped -37.71% vs TIBIX's -48.88%.

Which has better risk-adjusted returns?

TIBIX currently has the higher Sharpe Ratio (4.77 vs 2.16), 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.