GRPZ vs. MDY

Last updated Jun 4, 2026

GRPZ (Invesco S&P Smallcap 600 GARP ETF) and MDY (SPDR S&P MidCap 400 ETF) are both Small Cap Growth Equities funds - GRPZ tracks the S&P SmallCap 600 GARP Index while MDY tracks the S&P MidCap 400 Index. Both are passively managed. Over the past year, GRPZ returned 21.80% vs 25.00% for MDY. Their correlation of 0.90 suggests significant overlap in exposure. GRPZ charges 0.35%/yr vs 0.23%/yr for MDY.

Performance

GRPZ vs. MDY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco S&P Smallcap 600 GARP ETF (GRPZ) and SPDR S&P MidCap 400 ETF (MDY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, GRPZ achieves a 10.84% return, which is significantly lower than MDY's 13.91% return.

GRPZ

• 1D: -0.67%
• 1M: -1.04%
• YTD: 10.84%
• 6M: 8.51%
• 1Y: 21.80%
• 3Y*: —
• 5Y*: —
• 10Y*: —

MDY

• 1D: -0.09%
• 1M: 3.81%
• YTD: 13.91%
• 6M: 14.15%
• 1Y: 25.00%
• 3Y*: 15.77%
• 5Y*: 7.92%
• 10Y*: 11.04%

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

GRPZ vs. MDY - Yearly Performance Comparison

	2026 (YTD)	2025	2024
GRPZ Invesco S&P Smallcap 600 GARP ETF	10.84%	3.09%	4.27%
MDY SPDR S&P MidCap 400 ETF	13.91%	7.19%	3.80%

Correlation

The correlation between GRPZ and MDY is 0.89, 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	0.89
Correlation (All Time) Calculated using the full available price history since Mar 28, 2024	0.90

The correlation between GRPZ and MDY has been stable across timeframes, ranging from 0.89 to 0.90 - a consistent structural relationship.

GRPZ vs. MDY - Sectors Allocation Comparison

Sectors	GRPZ	MDY
Financial Services	28.0%	13.9%
Industrials	16.3%	25.1%
Healthcare	14.4%	8.7%
Energy	13.0%	5.6%
Consumer Cyclical	12.0%	10.8%
Technology	7.9%	15.4%
Consumer Defensive	5.3%	3.8%
Basic Materials	2.2%	4.8%
Communication Services	0.9%	1.0%
Real Estate	-	7.7%
Utilities	-	3.1%

Return for Risk

GRPZ vs. MDY — Risk / Return Rank

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

GRPZ

GRPZ Risk / Return Rank: 39
GRPZ Sharpe Ratio Rank: 35
GRPZ Sortino Ratio Rank: 38
GRPZ Omega Ratio Rank: 32
GRPZ Calmar Ratio Rank: 47
GRPZ Martin Ratio Rank: 41

MDY

MDY Risk / Return Rank: 50
MDY Sharpe Ratio Rank: 46
MDY Sortino Ratio Rank: 46
MDY Omega Ratio Rank: 44
MDY Calmar Ratio Rank: 56
MDY Martin Ratio Rank: 58

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.

GRPZ vs. MDY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco S&P Smallcap 600 GARP ETF (GRPZ) and SPDR S&P MidCap 400 ETF (MDY). 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.

	GRPZ	MDY	Difference
Sharpe ratio: Return per unit of total volatility	1.24	1.63	-0.38
Sortino ratio: Return per unit of downside risk	1.96	2.39	-0.43
Omega ratio: Gain probability vs. loss probability	1.22	1.29	-0.07
Calmar ratio: Return relative to maximum drawdown	2.30	2.85	-0.55
Martin ratio: Return relative to average drawdown	6.59	10.38	-3.79
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GRPZ vs. MDY - Sharpe Ratio Comparison

The current GRPZ Sharpe Ratio is 1.24, which is comparable to the MDY Sharpe Ratio of 1.63. The chart below compares the historical Sharpe Ratios of GRPZ and MDY, 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

	GRPZ	MDY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.24	1.63	-0.38
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.40	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.52	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.40	0.53	-0.13

Drawdowns

GRPZ vs. MDY - Drawdown Comparison

The maximum GRPZ drawdown since its inception was -27.87%, smaller than the maximum MDY drawdown of -55.33%. Use the drawdown chart below to compare losses from any high point for GRPZ and MDY.

Drawdown Indicators

	GRPZ	MDY	Difference
Max Drawdown Largest peak-to-trough decline	-27.87%	-55.33%	+27.46%
Max Drawdown (1Y) Largest decline over 1 year	-9.53%	-8.82%	-0.71%
Max Drawdown (3Y) Largest decline over 3 years	—	-24.03%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-24.03%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-42.22%	—
Current Drawdown Current decline from peak	-3.57%	-0.09%	-3.48%
Average Drawdown Average peak-to-trough decline	-7.00%	-7.03%	+0.03%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.32%	2.42%	+0.90%

Volatility

GRPZ vs. MDY - Volatility Comparison

Invesco S&P Smallcap 600 GARP ETF (GRPZ) has a higher volatility of 4.72% compared to SPDR S&P MidCap 400 ETF (MDY) at 4.33%. This indicates that GRPZ's price experiences larger fluctuations and is considered to be riskier than MDY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GRPZ	MDY	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.72%	4.33%	+0.39%
Volatility (6M) Calculated over the trailing 6-month period	11.85%	11.28%	+0.57%
Volatility (1Y) Calculated over the trailing 1-year period	17.70%	15.48%	+2.22%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.17%	19.77%	+1.40%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.17%	21.19%	-0.02%

GRPZ vs. MDY - Expense Ratio Comparison

GRPZ has a 0.35% expense ratio, which is higher than MDY's 0.23% expense ratio.

Dividends

GRPZ vs. MDY - Dividend Comparison

GRPZ's dividend yield for the trailing twelve months is around 0.91%, less than MDY's 1.04% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GRPZ Invesco S&P Smallcap 600 GARP ETF	0.91%	0.97%	0.73%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
MDY SPDR S&P MidCap 400 ETF	1.04%	1.15%	1.18%	1.21%	1.37%	0.96%	1.12%	1.34%	1.39%	1.18%	1.31%	1.35%

Frequently Asked Questions

Can I hold both GRPZ and MDY in my portfolio?

GRPZ and MDY have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, GRPZ or MDY?

GRPZ has higher volatility (4.72%) compared to MDY (4.33%). In terms of maximum drawdown, GRPZ dropped -27.87% vs MDY's -55.33%.

Which ETF is better, GRPZ or MDY?

On 1-year performance, MDY leads with 25.00% vs 21.80% for GRPZ. On fees, MDY is cheaper at 0.23% per year. On volatility, MDY has been the lower-risk option at 4.33%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, GRPZ or MDY?

Over the 1-year period, MDY has performed better with a 25.00% return vs 21.80%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, GRPZ or MDY?

MDY is cheaper with a 0.23% expense ratio, compared with 0.35% for GRPZ.

Which ETF pays a higher dividend yield, GRPZ or MDY?

MDY has the higher dividend yield at 1.04%, compared with 0.91% for GRPZ.

What is the main difference between GRPZ and MDY?

GRPZ tracks S&P SmallCap 600 GARP Index, while MDY tracks S&P MidCap 400 Index. They also come from different issuers: Invesco and State Street. Their fees differ too: 0.35% for GRPZ and 0.23% for MDY.

Which has better risk-adjusted returns?

MDY currently has the higher Sharpe Ratio (1.63 vs 1.24), 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.