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OEFvsMGCETF Comparison

ETF 1

OEF

iShares S&P 100 ETF

This fund is part of

US Large Cap

+0%

Full OEF fund page

VS

ETF 2

MGC

Vanguard Mega Cap ETF

This fund is part of

US Large Cap

+0%

Full MGC fund page

iShares S&P 100 ETF (OEF) and Vanguard Mega Cap ETF (MGC) belong to the same industry segment: US Large Cap. OEF's top 3 sector exposures are Information Technology, Communication Services and Consumer Discretionary. In contrast, MGC's top sector exposures are Information Technology, Communication Services and Financials. OEF is more expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.05% for MGC. OEF is up 2.95% year-to-date (YTD) with -$9.73B in YTD flows. MGC performs better with 4.06% YTD performance, and -$815M in YTD flows. Run a side-by-side ETF comparison of OEF and MGC 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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OEF vs MGC 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 04/29/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	OEF MGC	+14.19%+13.59%	+2.63%+2.48%	+2.95%+4.06%	+32.04%+32.15%	+90.32%+85.24%	+95.42%+88.12%
Flows	OEF MGC	-$359M-$119M	-$9.89B-$796M	-$9.73B-$815M	-$2.34B+$1.17B	+$2.89B+$1.98B	+$3.30B+$2.06B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	OEF MGC	+16.42%+15.83%	+13.33%+12.92%	+15.97%+15.37%	+17.79%+17.46%
Max drawdown	OEF MGC	-10.49%-9.78%	-10.96%-9.86%	-19.77%-19.36%	-26.44%-25.79%
Max drawdown duration	OEF MGC	71d76d	169d92d	126d126d	696d707d

Trading data

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	OEF	MGC
Last sale 4/30/2026 at 1:30 PM	$354.80	$262.72
Previous close 04/29/2026	$352.08	$260.52
Consolidated volume 04/29/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of April 29, 2026

1-year trailing difference

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	OEF	MGC
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 4/30/2026 at 1:30 PM

Live

Closed

	OEF	MGC
Last price	$354.80	$262.72
1D performance	+0.77%	+0.84%
AuM	$19.43 B	$9.35 B
E/R	0.2%	0.05%

Characteristics

	OEF	MGC
Management strategy	Passive	Passive
Provider	iShares	Vanguard
Benchmark	S&P 100 Index	CRSP U.S. Mega Cap Index
N° of holdings	97	166
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	October 23, 2000	December 17, 2007
ESG	No	No

More OEF data on Trackinsight

More MGC data on Trackinsight

Exposure

Countries

OEF

USA

98.8%

Other

1.2%

MGC

USA

97.33%

Other

2.67%

Sectors

OEF

Information Techn.

40.48%

Communication Ser.

13.53%

Consumer Discreti.

10.23%

Health Care

9.26%

Financials

8.64%

Other

17.86%

MGC

Information Techn.

37.9%

Communication Ser.

11.86%

Financials

9.94%

Health Care

9.86%

Consumer Discreti.

9.79%

Other

20.65%

Diversification

OEF

Total weight of top 15 holdings out of 15

58.88%

MGC

Total weight of top 15 holdings out of 15

51.35%

Top 15 holdings

Data as of March 31, 2026

OEF

NVIDIA

10.50%

APPLE

9.23%

MICROSOFT-T

6.81%

AMAZON.COM INC

5.04%

ALPHABET INC-CL

4.15%

BROADCOM LIMITED

3.64%

ALPHABET INC-CL

3.32%

META PLATFORMS

3.10%

TESLA

2.59%

BERKSHIRE HATHWAY

2.18%

JPMORGAN CHASE

1.96%

LILLY

1.81%

EXXON

1.76%

JOHNSON&JOHNSON

1.46%

WALMART INC

1.35%

MGC

NVIDIA

8.81%

APPLE

8.15%

MICROSOFT-T

6.02%

AMAZON.COM INC

4.40%

ALPHABET INC-CL

3.66%

BROADCOM LIMITED

3.21%

ALPHABET INC-CL

2.90%

META PLATFORMS

2.74%

TESLA

2.29%

BERKSHIRE HATHWAY

1.81%

LILLY

1.71%

JPMORGAN CHASE

1.62%

EXXON

1.55%

JOHNSON&JOHNSON

1.29%

WALMART INC

1.19%

Frequently asked questions about OEF and MGC

How have the OEF and MGC ETFs performed in 2026?

As of April 29, 2026, OEF is up 2.95% year-to-date (YTD), while MGC has returned 4.06%. That puts MGC better performer ahead so far this year.

Which ETF is attracting more investor money: OEF or MGC?

Year-to-date, the OEF ETF saw -$9.73B in flows, compared to -$815M for MGC.

Which ETF is more volatile: OEF or MGC?

Over the past year, OEF had a volatility of 13.33%, while MGC experienced 12.92%.

Which ETF is bigger: OEF or MGC?

As of April 29, 2026, OEF holds $19.43 B in assets under management (AUM), while MGC manages $9.35 B.

What sectors do the OEF and MGC ETFs invest in?

OEF leans toward sectors like Information Technology, Communication Services and Consumer Discretionary. Meanwhile, MGC focuses on Information Technology, Communication Services and Financials.

OEFvsMGCETF Comparison

iShares S&P 100 ETF

Vanguard Mega Cap ETF

OEF vs MGC 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 OEF and MGC ETFs performed in 2026?

As of April 29, 2026, OEF is up 2.95% year-to-date (YTD), while MGC has returned 4.06%. That puts MGC better performer ahead so far this year.

Which ETF is attracting more investor money: OEF or MGC?

Year-to-date, the OEF ETF saw -$9.73B in flows, compared to -$815M for MGC.

Which ETF is more volatile: OEF or MGC?

Over the past year, OEF had a volatility of 13.33%, while MGC experienced 12.92%.

Which ETF is bigger: OEF or MGC?

As of April 29, 2026, OEF holds $19.43 B in assets under management (AUM), while MGC manages $9.35 B.

What sectors do the OEF and MGC ETFs invest in?

OEF leans toward sectors like Information Technology, Communication Services and Consumer Discretionary. Meanwhile, MGC focuses on Information Technology, Communication Services and Financials.

What are the top holdings of the OEF ETF and MGC ETF?

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

Which ETF is more diversified: OEF or MGC?

OEF holds 102 securities with 58.88% of its assets in the top 15. MGC has 173 securities and a top 15 weight of 51.35%.

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