TMIFX vs. VMFGX

Last updated Jun 24, 2026

TMIFX (Transamerica Mid Cap Growth) and VMFGX (Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares) are both Mid Cap Growth Equities funds. Over the past 5 years, TMIFX returned 4.41%/yr vs 8.89%/yr for VMFGX. Their correlation of 0.88 suggests significant overlap in exposure. TMIFX charges 0.95%/yr vs 0.08%/yr for VMFGX.

Performance

TMIFX vs. VMFGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Transamerica Mid Cap Growth (TMIFX) and Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares (VMFGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TMIFX achieves a 9.67% return, which is significantly lower than VMFGX's 20.49% return.

TMIFX

• 1D: 0.21%
• 1M: 4.15%
• YTD: 9.67%
• 6M: 8.05%
• 1Y: 7.47%
• 3Y*: 15.43%
• 5Y*: 4.41%
• 10Y*: —

VMFGX

• 1D: 0.63%
• 1M: 4.19%
• YTD: 20.49%
• 6M: 17.90%
• 1Y: 31.74%
• 3Y*: 18.43%
• 5Y*: 8.89%
• 10Y*: 12.18%

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

TMIFX vs. VMFGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TMIFX Transamerica Mid Cap Growth	9.67%	6.85%	16.25%	31.92%	-32.11%	8.15%	30.28%	42.96%	-19.90%	12.49%
VMFGX Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares	20.49%	7.43%	15.86%	17.42%	-18.99%	18.83%	22.61%	26.20%	-10.39%	14.36%

Correlation

The correlation between TMIFX and VMFGX is 0.85, 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	0.85
Correlation (3Y) Calculated over the trailing 3-year period	0.86
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (All Time) Calculated using the full available price history since Mar 8, 2017	0.88

The correlation between TMIFX and VMFGX has been stable across timeframes, ranging from 0.85 to 0.88 - a consistent structural relationship.

Return for Risk

TMIFX vs. VMFGX — Risk / Return Rank

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

TMIFX

TMIFX Risk / Return Rank: 6
TMIFX Sharpe Ratio Rank: 7
TMIFX Sortino Ratio Rank: 7
TMIFX Omega Ratio Rank: 6
TMIFX Calmar Ratio Rank: 7
TMIFX Martin Ratio Rank: 6

VMFGX

VMFGX Risk / Return Rank: 58
VMFGX Sharpe Ratio Rank: 48
VMFGX Sortino Ratio Rank: 47
VMFGX Omega Ratio Rank: 44
VMFGX Calmar Ratio Rank: 77
VMFGX Martin Ratio Rank: 74

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.

TMIFX vs. VMFGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Transamerica Mid Cap Growth (TMIFX) and Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares (VMFGX). 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.

	TMIFX	VMFGX	Difference
Sharpe ratio: Return per unit of total volatility	0.48	1.89	-1.41
Sortino ratio: Return per unit of downside risk	0.79	2.68	-1.89
Omega ratio: Gain probability vs. loss probability	1.09	1.33	-0.24
Calmar ratio: Return relative to maximum drawdown	0.57	3.32	-2.75
Martin ratio: Return relative to average drawdown	1.43	13.13	-11.70

TMIFX vs. VMFGX - Sharpe Ratio Comparison

The current TMIFX Sharpe Ratio is 0.48, which is lower than the VMFGX Sharpe Ratio of 1.89. The chart below compares the historical Sharpe Ratios of TMIFX and VMFGX, 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

TMIFX vs. VMFGX - Drawdown Comparison

The maximum TMIFX drawdown since its inception was -55.26%, which is greater than VMFGX's maximum drawdown of -39.15%. Use the drawdown chart below to compare losses from any high point for TMIFX and VMFGX.

Drawdown Indicators

	TMIFX	VMFGX	Difference
Max Drawdown Largest peak-to-trough decline	-55.26%	-39.15%	-16.11%
Max Drawdown (1Y) Largest decline over 1 year	-15.00%	-9.91%	-5.09%
Max Drawdown (3Y) Largest decline over 3 years	-25.66%	-25.45%	-0.21%
Max Drawdown (5Y) Largest decline over 5 years	-55.26%	-29.25%	-26.01%
Max Drawdown (10Y) Largest decline over 10 years	—	-39.15%	—
Current Drawdown Current decline from peak	-13.38%	0.00%	-13.38%
Average Drawdown Average peak-to-trough decline	-19.11%	-5.69%	-13.42%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.91%	2.50%	+3.41%

Volatility

TMIFX vs. VMFGX - Volatility Comparison

Transamerica Mid Cap Growth (TMIFX) has a higher volatility of 5.85% compared to Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares (VMFGX) at 5.57%. This indicates that TMIFX's price experiences larger fluctuations and is considered to be riskier than VMFGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TMIFX	VMFGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.85%	5.57%	+0.28%
Volatility (6M) Calculated over the trailing 6-month period	14.01%	13.68%	+0.33%
Volatility (1Y) Calculated over the trailing 1-year period	17.80%	17.42%	+0.38%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	35.65%	20.69%	+14.96%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.00%	21.10%	+8.90%

TMIFX vs. VMFGX - Expense Ratio Comparison

TMIFX has a 0.95% expense ratio, which is higher than VMFGX's 0.08% expense ratio.

Dividends

TMIFX vs. VMFGX - Dividend Comparison

TMIFX's dividend yield for the trailing twelve months is around 22.44%, more than VMFGX's 0.58% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
TMIFX Transamerica Mid Cap Growth	22.44%	24.61%	4.10%	0.00%	0.00%	43.24%	4.67%	1.66%	53.57%	0.09%	0.00%	0.00%
VMFGX Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares	0.58%	0.70%	0.84%	1.21%	1.12%	0.53%	0.79%	1.22%	1.18%	0.93%	1.14%	1.14%

Frequently Asked Questions

Can I hold both TMIFX and VMFGX in my portfolio?

TMIFX and VMFGX have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TMIFX or VMFGX?

TMIFX has higher volatility (5.85%) compared to VMFGX (5.57%). In terms of maximum drawdown, TMIFX dropped -55.26% vs VMFGX's -39.15%.

Which has better risk-adjusted returns?

VMFGX currently has the higher Sharpe Ratio (1.89 vs 0.48), 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.