BROUGHT TO YOU BY:

ETF Portfolio Builder

New

ETF Portfolio Builder

New

IOOvsOEFETF Comparison

ETF 1

IOO

iShares Global 100 ETF

This fund is part of

Global Large Cap

-0.13%

Full IOO fund page

VS

ETF 2

OEF

iShares S&P 100 ETF

This fund is part of

US Large Cap

+0.06%

Full OEF fund page

iShares Global 100 ETF (IOO) belongs to the Global Large Cap segment. iShares S&P 100 ETF (OEF) is part of the US Large Cap segment. IOO's top 3 sector exposures are Information Technology, Communication Services and Health Care. In contrast, OEF's top sector exposures are Information Technology, Communication Services and Consumer Discretionary. IOO is more expensive with a Total Expense Ratio (TER) of 0.4%, versus 0.2% for OEF. IOO is up 5.45% year-to-date (YTD) with -$96M in YTD flows. OEF performs worse with 2.95% YTD performance, and -$9.73B in YTD flows. Run a side-by-side ETF comparison of IOO and OEF below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

Find out how industry players manage ETF portfolios. Discover our library of Model portfolios

IOO vs OEF performance and flow charts

Performance

Cumulative Flows

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

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.	IOO OEF	+14.09%+14.19%	+3.35%+2.63%	+5.45%+2.95%	+40.24%+32.04%	+91.23%+90.32%	+105.78%+95.42%
Flows	IOO OEF	-$38M-$359M	-$76M-$9.89B	-$96M-$9.73B	+$55M-$2.34B	+$960M+$2.89B	+$1.36B+$3.30B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IOO OEF	+17.59%+16.42%	+13.67%+13.33%	+15.88%+15.97%	+17.04%+17.79%
Max drawdown	IOO OEF	-9.82%-10.49%	-9.86%-10.96%	-19.16%-19.77%	-23.35%-26.44%
Max drawdown duration	IOO OEF	47d71d	76d169d	107d126d	554d696d

Trading data

Create an account to view trading data

Join for free

	IOO	OEF
Last sale 4/30/2026 at 4:09 PM	$134.35	$353.11
Previous close 04/29/2026	$133.49	$352.08
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 March 31, 2026

1-year trailing difference

Create an account to view replication metrics

Join for free

Create an account to view replication quality

Join for free

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

Main metrics

Last update 4/30/2026 at 4:09 PM

Live

Closed

	IOO	OEF
Last price	$134.35	$353.11
1D performance	+0.64%	+0.29%
AuM	$8.35 B	$19.43 B
E/R	0.4%	0.2%

Characteristics

	IOO	OEF
Management strategy	Passive	Passive
Provider	iShares	iShares
Benchmark	S&P Global 100 Index	S&P 100 Index
N° of holdings	98	97
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	December 5, 2000	October 23, 2000
ESG	No	No

More IOO data on Trackinsight

More OEF data on Trackinsight

Exposure

Countries

IOO

USA

77.93%

Other

22.07%

OEF

USA

98.8%

Other

1.2%

Sectors

IOO

Information Techn.

43.5%

Communication Ser.

10.12%

Health Care

8.96%

Financials

8.82%

Consumer Discreti.

8.5%

Other

20.09%

OEF

Information Techn.

40.48%

Communication Ser.

13.53%

Consumer Discreti.

10.23%

Health Care

9.26%

Financials

8.64%

Other

17.86%

Diversification

IOO

Total weight of top 15 holdings out of 15

63.39%

OEF

Total weight of top 15 holdings out of 15

58.88%

Top 15 holdings

Data as of March 31, 2026

IOO

NVIDIA

12.19%

APPLE

10.71%

MICROSOFT-T

7.90%

AMAZON.COM INC

5.85%

ALPHABET INC-CL

4.81%

BROADCOM LIMITED

4.22%

ALPHABET INC-CL

3.86%

JPMORGAN CHASE

2.28%

LILLY

2.10%

EXXON

2.04%

JOHNSON&JOHNSON

1.69%

WALMART INC

1.57%

SAMSUNG ELECTR

1.56%

ASML HOLDING

1.44%

MASTERCARD

1.17%

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%

Frequently asked questions about IOO and OEF

How have the IOO and OEF ETFs performed in 2026?

As of April 29, 2026, IOO is up 5.45% year-to-date (YTD), while OEF has returned 2.95%. That puts IOO better performer ahead so far this year.

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

Year-to-date, the IOO ETF saw -$96M in flows, compared to -$9.73B for OEF.

Which ETF is more volatile: IOO or OEF?

Over the past year, IOO had a volatility of 13.67%, while OEF experienced 13.33%.

Which ETF is bigger: IOO or OEF?

As of April 29, 2026, IOO holds $8.35 B in assets under management (AUM), while OEF manages $19.43 B.

What sectors do the IOO and OEF ETFs invest in?

IOO leans toward sectors like Information Technology, Communication Services and Health Care. Meanwhile, OEF focuses on Information Technology, Communication Services and Consumer Discretionary.

IOOvsOEFETF Comparison

iShares Global 100 ETF

iShares S&P 100 ETF

IOO vs OEF 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 IOO and OEF ETFs performed in 2026?

As of April 29, 2026, IOO is up 5.45% year-to-date (YTD), while OEF has returned 2.95%. That puts IOO better performer ahead so far this year.

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

Year-to-date, the IOO ETF saw -$96M in flows, compared to -$9.73B for OEF.

Which ETF is more volatile: IOO or OEF?

Over the past year, IOO had a volatility of 13.67%, while OEF experienced 13.33%.

Which ETF is bigger: IOO or OEF?

As of April 29, 2026, IOO holds $8.35 B in assets under management (AUM), while OEF manages $19.43 B.

What sectors do the IOO and OEF ETFs invest in?

IOO leans toward sectors like Information Technology, Communication Services and Health Care. Meanwhile, OEF focuses on Information Technology, Communication Services and Consumer Discretionary.

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

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

Which ETF is more diversified: IOO or OEF?

IOO holds 103 securities with 63.39% of its assets in the top 15. OEF has 102 securities and a top 15 weight of 58.88%.

MoneyShow Chart of the Day 10/21/2025: THESE Sectors Should Drive Q3 Profit Growth

MoneyShow Chart of the Day 10/16/2025: The BEST "Gold" Chart You Haven't Seen

MoneyShow Chart of the Day 8/27/2025: The Smaller They are, The Harder They Rally

3 ETFs that Beat the S&P 500 in 2024

ETFs for Exposure to the "Magnificent Seven" Stocks

ETFs for Exposure to the "Magnificent Seven" Stocks

Global Equity Investing: ETF Alternatives to Vanguard's VT

Build and Analyze Your ETF Portfolio Like a Pro