JAENX vs. VMGIX

Last updated Jun 4, 2026

JAENX (Janus Henderson Enterprise Fund Class T) and VMGIX (Vanguard Mid-Cap Growth Index Fund) are both Mid Cap Growth Equities funds. Over the past 10 years, JAENX returned 12.52%/yr vs 12.13%/yr for VMGIX. Their correlation of 0.94 suggests significant overlap in exposure. JAENX charges 0.91%/yr vs 0.19%/yr for VMGIX.

Performance

JAENX vs. VMGIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Janus Henderson Enterprise Fund Class T (JAENX) and Vanguard Mid-Cap Growth Index Fund (VMGIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, JAENX achieves a 6.52% return, which is significantly lower than VMGIX's 9.22% return. Both investments have delivered pretty close results over the past 10 years, with JAENX having a 12.52% annualized return and VMGIX not far behind at 12.13%.

JAENX

• 1D: 0.31%
• 1M: 5.52%
• YTD: 6.52%
• 6M: 6.91%
• 1Y: 13.64%
• 3Y*: 12.79%
• 5Y*: 7.12%
• 10Y*: 12.52%

VMGIX

• 1D: 0.96%
• 1M: 6.47%
• YTD: 9.22%
• 6M: 7.27%
• 1Y: 12.26%
• 3Y*: 16.43%
• 5Y*: 7.18%
• 10Y*: 12.13%

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

JAENX vs. VMGIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
JAENX Janus Henderson Enterprise Fund Class T	6.52%	7.52%	15.12%	17.86%	-16.12%	16.89%	20.26%	35.07%	-1.04%	26.30%
VMGIX Vanguard Mid-Cap Growth Index Fund	9.22%	10.56%	15.51%	23.79%	-28.93%	20.32%	34.30%	33.69%	-5.73%	21.72%

Correlation

The correlation between JAENX and VMGIX is 0.87, 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	0.87
Correlation (3Y) Calculated over the trailing 3-year period	0.88
Correlation (5Y) Calculated over the trailing 5-year period	0.91
Correlation (10Y) Calculated over the trailing 10-year period	0.92
Correlation (All Time) Calculated using the full available price history since Aug 25, 2006	0.94

The correlation between JAENX and VMGIX has been stable across timeframes, ranging from 0.87 to 0.94 - a consistent structural relationship.

Return for Risk

JAENX vs. VMGIX — Risk / Return Rank

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

JAENX

JAENX Risk / Return Rank: 15
JAENX Sharpe Ratio Rank: 15
JAENX Sortino Ratio Rank: 15
JAENX Omega Ratio Rank: 14
JAENX Calmar Ratio Rank: 14
JAENX Martin Ratio Rank: 16

VMGIX

VMGIX Risk / Return Rank: 10
VMGIX Sharpe Ratio Rank: 11
VMGIX Sortino Ratio Rank: 10
VMGIX Omega Ratio Rank: 10
VMGIX Calmar Ratio Rank: 8
VMGIX Martin Ratio Rank: 8

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.

JAENX vs. VMGIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Janus Henderson Enterprise Fund Class T (JAENX) and Vanguard Mid-Cap Growth Index Fund (VMGIX). 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.

	JAENX	VMGIX	Difference
Sharpe ratio: Return per unit of total volatility	1.08	0.85	+0.24
Sortino ratio: Return per unit of downside risk	1.63	1.27	+0.36
Omega ratio: Gain probability vs. loss probability	1.19	1.15	+0.04
Calmar ratio: Return relative to maximum drawdown	1.30	0.84	+0.46
Martin ratio: Return relative to average drawdown	4.53	2.52	+2.01
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

JAENX vs. VMGIX - Sharpe Ratio Comparison

The current JAENX Sharpe Ratio is 1.08, which is comparable to the VMGIX Sharpe Ratio of 0.85. The chart below compares the historical Sharpe Ratios of JAENX and VMGIX, 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

	JAENX	VMGIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.08	0.85	+0.24
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.41	0.34	+0.07
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.67	0.58	+0.09
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	0.45	+0.06

Drawdowns

JAENX vs. VMGIX - Drawdown Comparison

The maximum JAENX drawdown since its inception was -79.85%, which is greater than VMGIX's maximum drawdown of -60.20%. Use the drawdown chart below to compare losses from any high point for JAENX and VMGIX.

Drawdown Indicators

	JAENX	VMGIX	Difference
Max Drawdown Largest peak-to-trough decline	-79.85%	-60.20%	-19.65%
Max Drawdown (1Y) Largest decline over 1 year	-11.42%	-15.99%	+4.57%
Max Drawdown (3Y) Largest decline over 3 years	-19.60%	-21.67%	+2.07%
Max Drawdown (5Y) Largest decline over 5 years	-24.31%	-37.25%	+12.94%
Max Drawdown (10Y) Largest decline over 10 years	-38.25%	-37.25%	-1.00%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-24.94%	-10.02%	-14.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.28%	5.33%	-2.05%

Volatility

JAENX vs. VMGIX - Volatility Comparison

Janus Henderson Enterprise Fund Class T (JAENX) and Vanguard Mid-Cap Growth Index Fund (VMGIX) have volatilities of 4.19% and 4.26%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	JAENX	VMGIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.19%	4.26%	-0.07%
Volatility (6M) Calculated over the trailing 6-month period	10.56%	12.46%	-1.90%
Volatility (1Y) Calculated over the trailing 1-year period	13.78%	15.90%	-2.12%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.67%	21.42%	-3.75%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.71%	21.00%	-2.29%

JAENX vs. VMGIX - Expense Ratio Comparison

JAENX has a 0.91% expense ratio, which is higher than VMGIX's 0.19% expense ratio.

Dividends

JAENX vs. VMGIX - Dividend Comparison

JAENX's dividend yield for the trailing twelve months is around 7.07%, more than VMGIX's 0.49% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
JAENX Janus Henderson Enterprise Fund Class T	7.07%	7.53%	6.98%	7.62%	10.62%	15.94%	8.43%	4.41%	6.32%	1.79%	1.72%	3.93%
VMGIX Vanguard Mid-Cap Growth Index Fund	0.49%	0.52%	0.56%	0.60%	0.64%	0.23%	0.46%	0.67%	0.70%	0.61%	0.70%	0.69%

Frequently Asked Questions

Can I hold both JAENX and VMGIX in my portfolio?

JAENX and VMGIX have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, JAENX or VMGIX?

VMGIX has higher volatility (4.26%) compared to JAENX (4.19%). In terms of maximum drawdown, JAENX dropped -79.85% vs VMGIX's -60.20%.

Which has better risk-adjusted returns?

JAENX currently has the higher Sharpe Ratio (1.08 vs 0.85), 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.