TAAFX vs. IAAAX

Last updated Jun 24, 2026

TAAFX (Transamerica Asset Allocation Intermediate Horizon) and IAAAX (Transamerica Asset Allocation Growth Portfolio Fund) are both Diversified Portfolio funds from Transamerica. Over the past 10 years, TAAFX returned 7.27%/yr vs 11.45%/yr for IAAAX. Their correlation of 0.94 suggests significant overlap in exposure. TAAFX charges 0.35%/yr vs 0.49%/yr for IAAAX.

Performance

TAAFX vs. IAAAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Transamerica Asset Allocation Intermediate Horizon (TAAFX) and Transamerica Asset Allocation Growth Portfolio Fund (IAAAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TAAFX achieves a 4.34% return, which is significantly lower than IAAAX's 9.34% return. Over the past 10 years, TAAFX has underperformed IAAAX with an annualized return of 7.27%, while IAAAX has yielded a comparatively higher 11.45% annualized return.

TAAFX

• 1D: -0.33%
• 1M: 0.67%
• YTD: 4.34%
• 6M: 3.68%
• 1Y: 10.96%
• 3Y*: 11.13%
• 5Y*: 4.45%
• 10Y*: 7.27%

IAAAX

• 1D: -0.43%
• 1M: 1.26%
• YTD: 9.34%
• 6M: 8.45%
• 1Y: 24.54%
• 3Y*: 19.38%
• 5Y*: 9.38%
• 10Y*: 11.45%

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

TAAFX vs. IAAAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TAAFX Transamerica Asset Allocation Intermediate Horizon	4.34%	11.52%	10.43%	13.02%	-16.73%	9.77%	16.00%	17.67%	-5.08%	11.73%
IAAAX Transamerica Asset Allocation Growth Portfolio Fund	9.34%	21.45%	17.37%	20.04%	-19.24%	16.14%	18.87%	21.75%	-11.48%	20.17%

Correlation

The correlation between TAAFX and IAAAX is 0.95 - 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	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (10Y) Calculated over the trailing 10-year period	0.94
Correlation (All Time) Calculated using the full available price history since Aug 3, 2012	0.94

The correlation between TAAFX and IAAAX has been stable across timeframes, ranging from 0.94 to 0.95 - a consistent structural relationship.

Return for Risk

TAAFX vs. IAAAX — Risk / Return Rank

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

TAAFX

TAAFX Risk / Return Rank: 33
TAAFX Sharpe Ratio Rank: 30
TAAFX Sortino Ratio Rank: 30
TAAFX Omega Ratio Rank: 29
TAAFX Calmar Ratio Rank: 33
TAAFX Martin Ratio Rank: 40

IAAAX

IAAAX Risk / Return Rank: 50
IAAAX Sharpe Ratio Rank: 48
IAAAX Sortino Ratio Rank: 46
IAAAX Omega Ratio Rank: 47
IAAAX Calmar Ratio Rank: 51
IAAAX Martin Ratio Rank: 61

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.

TAAFX vs. IAAAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Transamerica Asset Allocation Intermediate Horizon (TAAFX) and Transamerica Asset Allocation Growth Portfolio Fund (IAAAX). 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.

	TAAFX	IAAAX	Difference
Sharpe ratio: Return per unit of total volatility	1.45	1.88	-0.43
Sortino ratio: Return per unit of downside risk	2.10	2.63	-0.52
Omega ratio: Gain probability vs. loss probability	1.26	1.34	-0.08
Calmar ratio: Return relative to maximum drawdown	2.05	2.61	-0.55
Martin ratio: Return relative to average drawdown	8.16	11.46	-3.30

TAAFX vs. IAAAX - Sharpe Ratio Comparison

The current TAAFX Sharpe Ratio is 1.45, which is comparable to the IAAAX Sharpe Ratio of 1.88. The chart below compares the historical Sharpe Ratios of TAAFX and IAAAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

TAAFX vs. IAAAX - Drawdown Comparison

The maximum TAAFX drawdown since its inception was -22.69%, smaller than the maximum IAAAX drawdown of -56.57%. Use the drawdown chart below to compare losses from any high point for TAAFX and IAAAX.

Drawdown Indicators

	TAAFX	IAAAX	Difference
Max Drawdown Largest peak-to-trough decline	-22.69%	-56.57%	+33.88%
Max Drawdown (1Y) Largest decline over 1 year	-5.74%	-9.85%	+4.11%
Max Drawdown (3Y) Largest decline over 3 years	-9.94%	-17.90%	+7.96%
Max Drawdown (5Y) Largest decline over 5 years	-22.62%	-29.29%	+6.67%
Max Drawdown (10Y) Largest decline over 10 years	-22.69%	-35.34%	+12.65%
Current Drawdown Current decline from peak	-0.87%	-0.91%	+0.04%
Average Drawdown Average peak-to-trough decline	-7.96%	-9.51%	+1.55%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.44%	2.24%	-0.80%

Volatility

TAAFX vs. IAAAX - Volatility Comparison

The current volatility for Transamerica Asset Allocation Intermediate Horizon (TAAFX) is 3.02%, while Transamerica Asset Allocation Growth Portfolio Fund (IAAAX) has a volatility of 4.97%. This indicates that TAAFX experiences smaller price fluctuations and is considered to be less risky than IAAAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TAAFX	IAAAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.02%	4.97%	-1.95%
Volatility (6M) Calculated over the trailing 6-month period	6.47%	10.96%	-4.49%
Volatility (1Y) Calculated over the trailing 1-year period	8.15%	13.68%	-5.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.94%	16.44%	-6.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.77%	16.90%	-3.13%

TAAFX vs. IAAAX - Expense Ratio Comparison

TAAFX has a 0.35% expense ratio, which is lower than IAAAX's 0.49% expense ratio.

Dividends

TAAFX vs. IAAAX - Dividend Comparison

TAAFX's dividend yield for the trailing twelve months is around 20.38%, more than IAAAX's 6.60% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IAAAX Transamerica Asset Allocation Growth Portfolio Fund	6.60%	7.21%	5.16%	2.79%	8.74%	8.25%	4.13%	9.02%	19.05%	11.01%	8.16%	9.44%
TAAFX Transamerica Asset Allocation Intermediate Horizon	20.38%	20.89%	6.34%	2.37%	10.56%	9.94%	8.85%	6.69%	6.60%	1.68%	0.00%	0.00%

Frequently Asked Questions

Can I hold both TAAFX and IAAAX in my portfolio?

With a correlation of 0.95, TAAFX and IAAAX 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, TAAFX or IAAAX?

IAAAX has higher volatility (4.97%) compared to TAAFX (3.02%). In terms of maximum drawdown, TAAFX dropped -22.69% vs IAAAX's -56.57%.

Which has better risk-adjusted returns?

IAAAX currently has the higher Sharpe Ratio (1.88 vs 1.45), 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.