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IWFvsMGKETF Comparison

ETF 1

IWF

iShares Russell 1000 Growth ETF

This fund is part of

US Large Cap Growth

+0.18%

Full IWF fund page

VS

ETF 2

MGK

Vanguard Mega Cap Growth ETF

This fund is part of

US Large Cap Growth

+0.18%

Full MGK fund page

iShares Russell 1000 Growth ETF (IWF) and Vanguard Mega Cap Growth ETF (MGK) belong to the same industry segment: US Large Cap Growth. IWF's top 3 sector exposures are Information Technology, Consumer Discretionary and Communication Services. In contrast, MGK's top sector exposures are Information Technology, Communication Services and Consumer Discretionary. IWF is more expensive with a Total Expense Ratio (TER) of 0.18%, versus 0.05% for MGK. IWF is up 2.92% year-to-date (YTD) with -$4.08B in YTD flows. MGK performs better with 5.35% YTD performance, and -$1.04B in YTD flows. Run a side-by-side ETF comparison of IWF and MGK 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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IWF vs MGK 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 06/12/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	IWF MGK	-1.33%-0.98%	+9.85%+13.37%	+2.92%+5.35%	+18.90%+23.06%	+84.34%+92.73%	+90.08%+98.24%
Flows	IWF MGK	-$828M-$94M	-$683M+$144M	-$4.08B-$1.04B	-$2.32B+$512M	-$1.87B+$5.01B	-$441M+$7.61B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IWF MGK	+19.36%+21.23%	+16.11%+16.94%	+19.34%+20.00%	+21.57%+22.80%
Max drawdown	IWF MGK	-7.37%-7.96%	-16.23%-16.79%	-23.36%-23.44%	-32.75%-36.04%
Max drawdown duration	IWF MGK	22d22d	189d187d	191d124d	743d745d

Trading data

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	IWF	MGK
Last sale 6/12/2026 at 1:30 PM	$121.61	$86.88
Previous close 06/11/2026	$121.57	$86.69
Consolidated volume 06/11/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of May 29, 2026

1-year trailing difference

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	IWF	MGK
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 6/12/2026 at 1:30 PM

Live

Closed

	IWF	MGK
Last price	$121.61	$86.88
1D performance	+0.03%	+0.22%
AuM	$125.59 B	$32.91 B
E/R	0.18%	0.05%

Characteristics

	IWF	MGK
Management strategy	Passive	Passive
Provider	iShares	Vanguard
Benchmark	Russell 1000 Growth Index	CRSP U.S. Mega Cap Growth Index
N° of holdings	346	55
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	May 22, 2000	December 17, 2007
ESG	No	No

More IWF data on Trackinsight

More MGK data on Trackinsight

Exposure

Countries

IWF

USA

98.43%

Other

1.58%

MGK

USA

99.62%

Other

0.38%

Sectors

IWF

Information Techn.

52.35%

Consumer Discreti.

13.03%

Communication Ser.

12.76%

Health Care

7.05%

Other

14.81%

MGK

Information Techn.

55.55%

Communication Ser.

17.23%

Consumer Discreti.

12.74%

Other

14.48%

Diversification

IWF

Total weight of top 15 holdings out of 15

67.76%

MGK

Total weight of top 15 holdings out of 15

74.96%

Top 15 holdings

Data as of April 30, 2026

IWF

NVIDIA

13.22%

APPLE

11.12%

MICROSOFT-T

8.69%

BROADCOM LIMITED

5.77%

AMAZON.COM INC

5.30%

ALPHABET INC-CL

4.23%

ALPHABET INC-CL

3.42%

META PLATFORMS

3.30%

TESLA

3.26%

LILLY

2.41%

VISA INCORPORATION

1.79%

COSTCO WHOLESALE

1.45%

MASTERCARD

1.30%

NETFLIX

1.28%

ABBVIE

1.21%

MGK

NVIDIA

13.74%

APPLE

11.77%

MICROSOFT-T

8.68%

ALPHABET INC-CL

6.45%

BROADCOM LIMITED

5.19%

AMAZON.COM INC

5.11%

ALPHABET INC-CL

5.08%

META PLATFORMS

3.90%

TESLA

3.75%

LILLY

2.82%

ADVANCED MICRO DEVICES

2.28%

VISA INCORPORATION

1.88%

MASTERCARD

1.52%

NETFLIX

1.50%

US5128073062

1.32%

Frequently asked questions about IWF and MGK

How have the IWF and MGK ETFs performed in 2026?

As of June 12, 2026, IWF is up 2.92% year-to-date (YTD), while MGK has returned 5.35%. That puts MGK better performer ahead so far this year.

Which ETF is attracting more investor money: IWF or MGK?

Year-to-date, the IWF ETF saw -$4.08B in flows, compared to -$1.04B for MGK.

Which ETF is more volatile: IWF or MGK?

Over the past year, IWF had a volatility of 16.11%, while MGK experienced 16.94%.

Which ETF is bigger: IWF or MGK?

As of June 12, 2026, IWF holds $125.59 B in assets under management (AUM), while MGK manages $32.91 B.

What sectors do the IWF and MGK ETFs invest in?

IWF leans toward sectors like Information Technology, Consumer Discretionary and Communication Services. Meanwhile, MGK focuses on Information Technology, Communication Services and Consumer Discretionary.

IWFvsMGKETF Comparison

iShares Russell 1000 Growth ETF

Vanguard Mega Cap Growth ETF

IWF vs MGK 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 IWF and MGK ETFs performed in 2026?

As of June 12, 2026, IWF is up 2.92% year-to-date (YTD), while MGK has returned 5.35%. That puts MGK better performer ahead so far this year.

Which ETF is attracting more investor money: IWF or MGK?

Year-to-date, the IWF ETF saw -$4.08B in flows, compared to -$1.04B for MGK.

Which ETF is more volatile: IWF or MGK?

Over the past year, IWF had a volatility of 16.11%, while MGK experienced 16.94%.

Which ETF is bigger: IWF or MGK?

As of June 12, 2026, IWF holds $125.59 B in assets under management (AUM), while MGK manages $32.91 B.

What sectors do the IWF and MGK ETFs invest in?

IWF leans toward sectors like Information Technology, Consumer Discretionary and Communication Services. Meanwhile, MGK focuses on Information Technology, Communication Services and Consumer Discretionary.

What are the top holdings of the IWF ETF and MGK ETF?

IWF top holdings include NVIDIA, APPLE and MICROSOFT-T. MGK holds in its top three: NVIDIA, APPLE and MICROSOFT-T.

Which ETF is more diversified: IWF or MGK?

IWF holds 388 securities with 67.76% of its assets in the top 15. MGK has 59 securities and a top 15 weight of 74.96%.

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