Which returned more over the last year, IWB or VONG?

In the year to Sep 12, 2026, with distributions reinvested, IWB returned +16.7% and VONG returned +7.2%, so IWB returned more. One year is one year; the longer windows are in the table.

Which is cheaper, IWB or VONG?

IWB charges 0.15% a year and VONG charges 0.07%, so VONG is cheaper. Fees come from each fund's prospectus.

How much do IWB and VONG overlap with the S&P 500?

By their latest filed holdings, 92% of IWB and 96% of VONG by weight is stocks the S&P 500 already holds. Between the two funds, 56% of their books are the same securities at the same weight.

Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

IWB vs VONG: how they differ

IWB and VONG hold 56% of their weight in the same names, and IWB returned more over the year.

iShares Russell 1000 ETF and Vanguard Russell 1000 Growth Index Fund.

What they hold in common

By the books each fund has filed, IWB and VONG hold 56% of their money in the same securities at the same weight.

Positions IWB and VONG both hold, largest shared weight first
Holding	IWB	VONG
NVIDIA CORPORATION	6.73%	13.09%
APPLE INC.	6.03%	11.97%
MICROSOFT CORPORATION	4.00%	8.98%
AMAZON.COM, INC.	3.33%	5.07%
ALPHABET INC.	3.00%	3.91%
BROADCOM INC.	2.54%	5.78%
ALPHABET INC.	2.42%	3.15%
META PLATFORMS, INC.	1.79%	3.20%
TESLA, INC.	1.77%	3.48%
ELI LILLY AND COMPANY	1.38%	2.67%
ADVANCED MICRO DEVICES, INC.	1.36%	1.47%
VISA INC.	0.82%	1.57%

Largest positions each one holds and the other does not
Only in IWB	Only in VONG
MICRON TECHNOLOGY, INC. 1.88%	Viking Holdings Ltd 0.05%
BERKSHIRE HATHAWAY INC. 1.34%	Masimo Corp 0.02%
JPMORGAN CHASE & CO. 1.26%	Anglogold Ashanti Plc 0.02%
INTEL CORPORATION 0.88%	James Hardie Industries PLC 0.01%
JOHNSON & JOHNSON 0.88%	Ultragenyx Pharmaceutical Inc 0.01%
EXXON MOBIL CORPORATION 0.82%	Inspire Medical Systems Inc 0.00%
CISCO SYSTEMS, INC. 0.67%	Sarepta Therapeutics Inc 0.00%
UNITEDHEALTH GROUP INCORPORATED 0.54%	DoubleVerify Holdings Inc 0.00%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026 and May 31, 2026.

IWB and VONG on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	IWB iShares Russell 1000 ETF	VONG Vanguard Russell 1000 Growth Index Fund
Where it sits	Core index fund	Core index fund
Issuer	iShares	Vanguard
What it is	Russell 1000	Russell 1000 Growth
Total return, 1 year	+16.7%	+7.2%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−0.8 pts	−10.3 pts
Expense ratio	0.15%	0.07%
Already in the S&P 500	91.9%	95.6%
Holdings	1024	387

IWB in plain words

IWB is an index equity fund tracking the Russell 1000. Over the year to Sep 11, 2026 it returned +16.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. By its holdings filed for Jun 30, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1024 positions, with the top ten at 33.5%.

VONG in plain words

VONG is an index equity fund tracking the Russell 1000 Growth. Over the year to Sep 11, 2026 it returned +7.2% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.07% a year. By its holdings filed for May 31, 2026, 96% of the fund by weight is stocks the S&P 500 also holds, across 387 positions, with the top ten at 61.3%. It sat 4.9% below its high of Jun 1, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, IWB or VONG?: In the year to Sep 12, 2026, with distributions reinvested, IWB returned +16.7% and VONG returned +7.2%, so IWB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IWB or VONG?: IWB charges 0.15% a year and VONG charges 0.07%, so VONG is cheaper. Fees come from each fund's prospectus.
How much do IWB and VONG overlap with the S&P 500?: By their latest filed holdings, 92% of IWB and 96% of VONG by weight is stocks the S&P 500 already holds. Between the two funds, 56% of their books are the same securities at the same weight.

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Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

IWB against VONG, ETFIQ, data as of Sep 12, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, IWB against VONG, data as of Sep 12, 2026. https://etfiq.com/compare/any/IWB-VONG Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources