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RFGvsMDYGETF Comparison

ETF 1

RFG

Invesco S&P MidCap 400® Pure Growth ETF

This fund is part of

US Mid Cap Growth

-0.21%

Full RFG fund page

VS

ETF 2

MDYG

State Street SPDR S&P 400 Mid Cap Growth ETF

This fund is part of

US Mid Cap Growth

-0.21%

Full MDYG fund page

Invesco S&P MidCap 400® Pure Growth ETF (RFG) and State Street SPDR S&P 400 Mid Cap Growth ETF (MDYG) belong to the same industry segment: US Mid Cap Growth. RFG's top 3 sector exposures are Industrials, Health Care and Information Technology. In contrast, MDYG's top sector exposures are Industrials, Information Technology and Health Care. RFG is more expensive with a Total Expense Ratio (TER) of 0.35%, versus 0.15% for MDYG. RFG is up 14.89% year-to-date (YTD) with +$6M in YTD flows. MDYG performs worse with 12.9% YTD performance, and -$48M in YTD flows. Run a side-by-side ETF comparison of RFG and MDYG below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

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RFG vs MDYG performance and flow charts

Performance

Cumulative Flows

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Data Services

Historic performance and flows

Data as of 04/27/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	RFG MDYG	+11.70%+10.85%	+6.25%+6.25%	+14.89%+12.90%	+38.19%+33.42%	+69.15%+58.63%	+31.86%+37.01%
Flows	RFG MDYG	+$5M+$10M	+$6M-$58M	+$6M-$48M	-$25M-$45M	-$45M+$28M	-$125M+$342M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	RFG MDYG	+23.36%+21.25%	+18.08%+17.00%	+19.89%+18.59%	+22.69%+20.57%
Max drawdown	RFG MDYG	-10.42%-9.91%	-10.42%-9.91%	-26.58%-25.46%	-35.14%-29.25%
Max drawdown duration	RFG MDYG	45d45d	45d45d	380d379d	836d834d

Trading data

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	RFG	MDYG
Last sale 4/28/2026 at 2:52 PM	$58.59	$102.48
Previous close 04/27/2026	$60.24	$104.25
Consolidated volume 04/27/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of March 31, 2026

1-year trailing difference

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	RFG	MDYG
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 4/28/2026 at 2:52 PM

Live

Closed

	RFG	MDYG
Last price	$58.59	$102.48
1D performance	-2.74%	-1.70%
AuM	$337.86 M	$2.71 B
E/R	0.35%	0.15%

Characteristics

	RFG	MDYG
Management strategy	Passive	Passive
Provider	Invesco	State Street Investment Management
Benchmark	S&P MidCap 400 Pure Growth Index	S&P MidCap 400 Growth Index
N° of holdings	92	232
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	March 1, 2006	November 8, 2005
ESG	No	No

More RFG data on Trackinsight

More MDYG data on Trackinsight

Exposure

Countries

RFG

USA

88.84%

Other

11.16%

MDYG

USA

90.47%

Other

9.53%

Sectors

RFG

Industrials

25.15%

Health Care

20.75%

Information Techn.

16.53%

Consumer Discreti.

8.85%

Materials

7.81%

Other

20.91%

MDYG

Industrials

25.32%

Information Techn.

18.48%

Health Care

14.42%

Consumer Discreti.

9.23%

Other

32.55%

Diversification

RFG

Total weight of top 15 holdings out of 15

29.56%

MDYG

Total weight of top 15 holdings out of 15

20.19%

Top 15 holdings

Data as of March 31, 2026

RFG

VALARIS LTD

2.60%

TECHNIPFMC PLC

2.57%

WOODWARD

2.12%

MICHAEL STORES

2.05%

INTERDIGITAL

2.04%

ARROWHEAD PHARMACEUTICALS INC

2.04%

FIVE BELOW

1.98%

STERLING INFRASTRUCTURE INC

1.94%

CARPENTER TECHNOLOGY

1.93%

FABRINET

1.87%

HALOZYME THERAPEUTICS

1.85%

HECLA MINING

1.69%

MEDPACE HOLDINGS INC

1.67%

CURTISS WRIGHT

1.62%

FIRSTCASH HOLDINGS INC

1.61%

MDYG

TECHNIPFMC PLC

1.71%

CASEYS GENERAL STORES

1.66%

UTD THERAPEUT

1.57%

CURTISS WRIGHT

1.54%

FLEX LTD

1.48%

XPO LOGISTICS

1.40%

WOODWARD

1.31%

ROYAL GOLD

1.26%

ATI INC

1.21%

MICHAEL STORES

1.21%

CARPENTER TECHNOLOGY

1.20%

NVENT ELECTRIC PLC

1.17%

TWILIO

1.17%

FABRINET

1.15%

BWX TECHNOLOGIES INC

1.15%

Frequently asked questions about RFG and MDYG

How have the RFG and MDYG ETFs performed in 2026?

As of April 27, 2026, RFG is up 14.89% year-to-date (YTD), while MDYG has returned 12.9%. That puts RFG better performer ahead so far this year.

Which ETF is attracting more investor money: RFG or MDYG?

Year-to-date, the RFG ETF saw +$6M in flows, compared to -$48M for MDYG.

Which ETF is more volatile: RFG or MDYG?

Over the past year, RFG had a volatility of 18.08%, while MDYG experienced 17%.

Which ETF is bigger: RFG or MDYG?

As of April 27, 2026, RFG holds $337.86 M in assets under management (AUM), while MDYG manages $2.71 B.

What sectors do the RFG and MDYG ETFs invest in?

RFG leans toward sectors like Industrials, Health Care and Information Technology. Meanwhile, MDYG focuses on Industrials, Information Technology and Health Care.

What are the top holdings of the RFG ETF and MDYG ETF?

RFG top holdings include VALARIS LTD, TECHNIPFMC PLC and WOODWARD. MDYG holds in its top three: TECHNIPFMC PLC, CASEYS GENERAL STORES and UTD THERAPEUT.

RFGvsMDYGETF Comparison

Invesco S&P MidCap 400® Pure Growth ETF

State Street SPDR S&P 400 Mid Cap Growth ETF

RFG vs MDYG performance and flow charts

Performance

Cumulative Flows

Get all the metrics on this page, and more, through a reliable ETF data feed

Countries

Sectors

Diversification

Top 15 holdings

How have the RFG and MDYG ETFs performed in 2026?

As of April 27, 2026, RFG is up 14.89% year-to-date (YTD), while MDYG has returned 12.9%. That puts RFG better performer ahead so far this year.

Which ETF is attracting more investor money: RFG or MDYG?

Year-to-date, the RFG ETF saw +$6M in flows, compared to -$48M for MDYG.

Which ETF is more volatile: RFG or MDYG?

Over the past year, RFG had a volatility of 18.08%, while MDYG experienced 17%.

Which ETF is bigger: RFG or MDYG?

As of April 27, 2026, RFG holds $337.86 M in assets under management (AUM), while MDYG manages $2.71 B.

What sectors do the RFG and MDYG ETFs invest in?

RFG leans toward sectors like Industrials, Health Care and Information Technology. Meanwhile, MDYG focuses on Industrials, Information Technology and Health Care.

What are the top holdings of the RFG ETF and MDYG ETF?

RFG top holdings include VALARIS LTD, TECHNIPFMC PLC and WOODWARD. MDYG holds in its top three: TECHNIPFMC PLC, CASEYS GENERAL STORES and UTD THERAPEUT.

Which ETF is more diversified: RFG or MDYG?

RFG holds 95 securities with 29.56% of its assets in the top 15. MDYG has 242 securities and a top 15 weight of 20.19%.

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