OPMYX vs. JANEX

Last updated Aug 5, 2026

OPMYX (Invesco Main Street Mid Cap Fund) and JANEX (Janus Henderson Enterprise Fund Class D) are both mutual funds - OPMYX is a Mid Cap Blend Equities fund managed by Invesco, while JANEX is a Mid Cap Growth Equities fund actively managed by Janus Henderson. Over the past 10 years, OPMYX returned 10.24%/yr vs 12.46%/yr for JANEX. Their correlation of 0.91 means they have usually moved in the same direction. OPMYX charges 0.81%/yr vs 0.79%/yr for JANEX.

Performance

OPMYX vs. JANEX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco Main Street Mid Cap Fund (OPMYX) and Janus Henderson Enterprise Fund Class D (JANEX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OPMYX achieves a 11.88% return, which is significantly higher than JANEX's 8.74% return. Over the past 10 years, OPMYX has underperformed JANEX with an annualized return of 10.24%, while JANEX has yielded a comparatively higher 12.46% annualized return.

OPMYX

• 1D: 1.00%
• 1M: 0.46%
• 6M: 9.26%
• YTD: 11.88%
• 1Y: 15.43%
• 3Y*: 14.27%
• 5Y*: 8.15%
• 10Y*: 10.24%
• ALL TIME*: 10.46%

JANEX

• 1D: 1.04%
• 1M: -0.09%
• 6M: 9.30%
• YTD: 8.74%
• 1Y: 12.14%
• 3Y*: 11.89%
• 5Y*: 6.78%
• 10Y*: 12.46%
• ALL TIME*: 9.90%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
JANEX Janus Henderson Enterprise Fund Class D	$0.00	$0.00	$0.00
OPMYX Invesco Main Street Mid Cap Fund	$0.00	$0.00	$0.00

OPMYX vs. JANEX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OPMYX Invesco Main Street Mid Cap Fund	11.88%	9.24%	17.33%	14.73%	-14.13%	23.13%	9.36%	32.51%	-12.31%	15.10%
JANEX Janus Henderson Enterprise Fund Class D	8.74%	7.64%	15.25%	17.99%	-16.03%	17.02%	20.38%	35.22%	-0.95%	26.36%

Correlation

The correlation between OPMYX and JANEX is 0.79, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.79
Correlation (3Y) Balances recent behavior with more history.	0.87
Correlation (5Y) Shows whether the relationship held over a longer period.	0.91
Correlation (10Y) Provides a long-term view across more market conditions.	0.91
Correlation (All Time) Calculated using the full available price history since Jul 30, 1999	0.91

The correlation between OPMYX and JANEX shifts across timeframes, from 0.79 (1 year) to 0.91 (10 years), reflecting how their relationship changes across market environments.

Return for Risk

OPMYX vs. JANEX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

OPMYX

OPMYX Risk / Return Rank: 39
OPMYX Sharpe Ratio Rank: 37
OPMYX Sortino Ratio Rank: 42
OPMYX Omega Ratio Rank: 34
OPMYX Calmar Ratio Rank: 38
OPMYX Martin Ratio Rank: 45

JANEX

JANEX Risk / Return Rank: 25
JANEX Sharpe Ratio Rank: 25
JANEX Sortino Ratio Rank: 26
JANEX Omega Ratio Rank: 24
JANEX Calmar Ratio Rank: 24
JANEX Martin Ratio Rank: 27

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

OPMYX vs. JANEX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco Main Street Mid Cap Fund (OPMYX) and Janus Henderson Enterprise Fund Class D (JANEX). 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.

	OPMYX	JANEX	Difference
Sharpe ratio: Return per unit of total volatility	1.35	0.95	+0.40
Sortino ratio: Return per unit of downside risk	2.08	1.45	+0.64
Omega ratio: Gain probability vs. loss probability	1.24	1.17	+0.07
Calmar ratio: Return relative to maximum drawdown	1.84	1.19	+0.64
Martin ratio: Return relative to average drawdown	7.17	4.16	+3.02

OPMYX vs. JANEX - Sharpe Ratio Comparison

The current OPMYX Sharpe Ratio is 1.35, which is higher than the JANEX Sharpe Ratio of 0.95. The chart below compares the historical Sharpe Ratios of OPMYX and JANEX, 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

OPMYX vs. JANEX - Drawdown Comparison

The maximum OPMYX drawdown since its inception was -63.70%, smaller than the maximum JANEX drawdown of -79.85%. Use the drawdown chart below to compare losses from any high point for OPMYX and JANEX.

Drawdown Indicators

	OPMYX	JANEX	Difference
Max Drawdown Largest peak-to-trough decline	-63.70%	-79.85%	+16.15%
Max Drawdown (1Y) Largest decline over 1 year	-10.34%	-11.40%	+1.06%
Max Drawdown (3Y) Largest decline over 3 years	-22.48%	-19.57%	-2.91%
Max Drawdown (5Y) Largest decline over 5 years	-22.87%	-24.24%	+1.37%
Max Drawdown (10Y) Largest decline over 10 years	-41.16%	-38.24%	-2.92%
Current Drawdown Current decline from peak	-0.35%	-0.50%	+0.15%
Average Drawdown Average peak-to-trough decline	-8.13%	-24.99%	+16.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.54%	3.26%	-0.72%

Volatility

OPMYX vs. JANEX - Volatility Comparison

The current volatility for Invesco Main Street Mid Cap Fund (OPMYX) is 2.71%, while Janus Henderson Enterprise Fund Class D (JANEX) has a volatility of 3.21%. This indicates that OPMYX experiences smaller price fluctuations and is considered to be less risky than JANEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OPMYX	JANEX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.71%	3.21%	-0.50%
Volatility (6M) Calculated over the trailing 6-month period	10.42%	11.26%	-0.84%
Volatility (1Y) Calculated over the trailing 1-year period	14.13%	14.34%	-0.21%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.13%	17.73%	+0.40%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.19%	18.69%	+0.50%

OPMYX vs. JANEX - Expense Ratio Comparison

OPMYX has a 0.81% expense ratio, which is higher than JANEX's 0.79% expense ratio.

Dividends

OPMYX vs. JANEX - Dividend Comparison

OPMYX's dividend yield for the trailing twelve months is around 7.15%, more than JANEX's 6.91% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
JANEX Janus Henderson Enterprise Fund Class D	6.91%	7.51%	7.00%	7.52%	10.51%	15.98%	8.46%	4.45%	6.38%	1.78%	1.64%	3.64%
OPMYX Invesco Main Street Mid Cap Fund	7.15%	8.00%	8.16%	0.00%	3.68%	17.06%	2.39%	4.53%	12.36%	13.69%	3.06%	12.87%

Frequently Asked Questions

Can I hold both OPMYX and JANEX in my portfolio?

OPMYX and JANEX have a correlation of 0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OPMYX or JANEX?

JANEX has higher volatility (3.21%) compared to OPMYX (2.71%). In terms of maximum drawdown, OPMYX dropped -63.70% vs JANEX's -79.85%.

Which has better risk-adjusted returns?

OPMYX currently has the higher Sharpe Ratio (1.35 vs 0.95), 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.