NUMG vs. IMCG

Last updated Jun 4, 2026

NUMG (Nuveen ESG Mid-Cap Growth ETF) and IMCG (iShares Morningstar Mid-Cap Growth ETF) are both Mid Cap Growth Equities funds - NUMG tracks the MSCI TIAA ESG USA Mid Cap Growth while IMCG tracks the Morningstar US Mid Cap Broad Growth Index. Both are passively managed. Over the past 5 years, NUMG returned 0.99%/yr vs 8.62%/yr for IMCG. Their correlation of 0.92 suggests significant overlap in exposure. NUMG charges 0.30%/yr vs 0.06%/yr for IMCG.

Performance

NUMG vs. IMCG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Nuveen ESG Mid-Cap Growth ETF (NUMG) and iShares Morningstar Mid-Cap Growth ETF (IMCG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NUMG achieves a -0.40% return, which is significantly lower than IMCG's 20.05% return.

NUMG

• 1D: -1.63%
• 1M: 5.76%
• YTD: -0.40%
• 6M: 0.31%
• 1Y: -0.49%
• 3Y*: 8.47%
• 5Y*: 0.99%
• 10Y*: —

IMCG

• 1D: -0.26%
• 1M: 8.33%
• YTD: 20.05%
• 6M: 18.28%
• 1Y: 23.35%
• 3Y*: 18.91%
• 5Y*: 8.62%
• 10Y*: 14.46%

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

NUMG vs. IMCG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
NUMG Nuveen ESG Mid-Cap Growth ETF	-0.40%	0.78%	11.99%	20.47%	-28.31%	12.27%	45.73%	34.87%	-5.79%	19.00%
IMCG iShares Morningstar Mid-Cap Growth ETF	20.05%	6.55%	18.14%	20.73%	-25.79%	15.39%	45.64%	35.70%	-3.68%	25.57%

Correlation

The correlation between NUMG and IMCG 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	0.92
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (All Time) Calculated using the full available price history since Dec 15, 2016	0.92

The correlation between NUMG and IMCG has been stable across timeframes, ranging from 0.85 to 0.95 - a consistent structural relationship.

NUMG vs. IMCG - Sectors Allocation Comparison

Sectors	NUMG	IMCG
Technology	28.7%	30.4%
Industrials	26.5%	26.6%
Healthcare	13.9%	7.4%
Consumer Cyclical	11.8%	10.0%
Financial Services	6.5%	9.1%
Communication Services	5.2%	2.6%
Real Estate	3.7%	3.4%
Basic Materials	2.3%	4.5%
Utilities	1.4%	2.7%
Consumer Defensive	-	1.2%
Energy	-	2.1%

Return for Risk

NUMG vs. IMCG — Risk / Return Rank

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

NUMG

NUMG Risk / Return Rank: 8
NUMG Sharpe Ratio Rank: 8
NUMG Sortino Ratio Rank: 8
NUMG Omega Ratio Rank: 8
NUMG Calmar Ratio Rank: 9
NUMG Martin Ratio Rank: 8

IMCG

IMCG Risk / Return Rank: 44
IMCG Sharpe Ratio Rank: 42
IMCG Sortino Ratio Rank: 42
IMCG Omega Ratio Rank: 40
IMCG Calmar Ratio Rank: 46
IMCG Martin Ratio Rank: 52

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.

NUMG vs. IMCG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Nuveen ESG Mid-Cap Growth ETF (NUMG) and iShares Morningstar Mid-Cap Growth ETF (IMCG). 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.

	NUMG	IMCG	Difference
Sharpe ratio: Return per unit of total volatility	-0.03	1.51	-1.54
Sortino ratio: Return per unit of downside risk	0.09	2.18	-2.09
Omega ratio: Gain probability vs. loss probability	1.01	1.26	-0.25
Calmar ratio: Return relative to maximum drawdown	-0.03	2.31	-2.33
Martin ratio: Return relative to average drawdown	-0.06	8.97	-9.04
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

NUMG vs. IMCG - Sharpe Ratio Comparison

The current NUMG Sharpe Ratio is -0.03, which is lower than the IMCG Sharpe Ratio of 1.51. The chart below compares the historical Sharpe Ratios of NUMG and IMCG, 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

	NUMG	IMCG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.03	1.51	-1.54
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.04	0.43	-0.39
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.71	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.44	0.54	-0.10

Drawdowns

NUMG vs. IMCG - Drawdown Comparison

The maximum NUMG drawdown since its inception was -38.85%, smaller than the maximum IMCG drawdown of -58.96%. Use the drawdown chart below to compare losses from any high point for NUMG and IMCG.

Drawdown Indicators

	NUMG	IMCG	Difference
Max Drawdown Largest peak-to-trough decline	-38.85%	-58.96%	+20.11%
Max Drawdown (1Y) Largest decline over 1 year	-19.71%	-10.17%	-9.54%
Max Drawdown (3Y) Largest decline over 3 years	-26.58%	-21.92%	-4.66%
Max Drawdown (5Y) Largest decline over 5 years	-38.85%	-35.08%	-3.77%
Max Drawdown (10Y) Largest decline over 10 years	—	-35.08%	—
Current Drawdown Current decline from peak	-9.34%	-0.26%	-9.08%
Average Drawdown Average peak-to-trough decline	-11.37%	-9.22%	-2.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.59%	2.61%	+4.98%

Volatility

NUMG vs. IMCG - Volatility Comparison

Nuveen ESG Mid-Cap Growth ETF (NUMG) and iShares Morningstar Mid-Cap Growth ETF (IMCG) have volatilities of 4.75% and 4.65%, 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

	NUMG	IMCG	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.75%	4.65%	+0.10%
Volatility (6M) Calculated over the trailing 6-month period	14.59%	12.53%	+2.06%
Volatility (1Y) Calculated over the trailing 1-year period	18.18%	15.53%	+2.65%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.86%	20.17%	+2.69%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.87%	20.51%	+1.36%

NUMG vs. IMCG - Expense Ratio Comparison

NUMG has a 0.30% expense ratio, which is higher than IMCG's 0.06% expense ratio.

Dividends

NUMG vs. IMCG - Dividend Comparison

NUMG's dividend yield for the trailing twelve months is around 0.01%, less than IMCG's 0.65% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IMCG iShares Morningstar Mid-Cap Growth ETF	0.65%	0.78%	0.78%	0.85%	0.91%	0.41%	0.09%	0.30%	0.35%	0.45%	0.52%	0.38%
NUMG Nuveen ESG Mid-Cap Growth ETF	0.01%	0.01%	0.06%	0.18%	0.18%	12.76%	3.82%	0.27%	5.14%	0.56%	0.00%	0.00%

Frequently Asked Questions

Can I hold both NUMG and IMCG in my portfolio?

NUMG and IMCG 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, NUMG or IMCG?

NUMG has higher volatility (4.75%) compared to IMCG (4.65%). In terms of maximum drawdown, NUMG dropped -38.85% vs IMCG's -58.96%.

Which ETF is better, NUMG or IMCG?

On 5-year performance, IMCG leads with 8.62% vs 0.99% for NUMG. On fees, IMCG is cheaper at 0.06% per year. On volatility, IMCG has been the lower-risk option at 4.65%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, NUMG or IMCG?

Over the 5-year period, IMCG has performed better with a 8.62% return vs 0.99%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, NUMG or IMCG?

IMCG is cheaper with a 0.06% expense ratio, compared with 0.30% for NUMG.

Which ETF pays a higher dividend yield, NUMG or IMCG?

IMCG has the higher dividend yield at 0.65%, compared with 0.01% for NUMG.

What is the main difference between NUMG and IMCG?

NUMG tracks MSCI TIAA ESG USA Mid Cap Growth, while IMCG tracks Morningstar US Mid Cap Broad Growth Index. They also come from different issuers: Nuveen and iShares. Their fees differ too: 0.30% for NUMG and 0.06% for IMCG.

Which has better risk-adjusted returns?

IMCG currently has the higher Sharpe Ratio (1.51 vs -0.03), 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.