Data as of Oct 28, 2026.

vsCompare their flowsaskIQ about these two fundsAsk the committee about these two funds
Across categories

IWF vs VOOG: Differences, Returns & Fees

Share
Share on XDownload as PDF

Over the year to Oct 28, 2026, IWF returned +0.9% to VOOG's +12.1%; 76% of their weight is in the same names.

askIQ about this page

askIQ about IWF and VOOG

Net assets: $124.7bn on Oct 27, 2026 for iShares Russell 1000 Growth ETF, and $27.8bn on Sep 30, 2026 for Vanguard S&P 500 Growth ETF.

At a glance
+0.9%
IWF total return, 1 year
+12.1%
VOOG total return, 1 year
0.18%
IWF expense ratio
0.05%
VOOG expense ratio

Pair scorecard

VOOG costs 0.13 points a year less; their one-year returns differ by 11.2 points; IWF is 4.6 times larger.

IWF vs VOOG: Differences, Returns & Fees
MeasureIWFVOOG
Return
Total return, 1 year+0.9%+12.1%
Drawdown
Below its high4.8%, high on Oct 6, 20264.1%, high on Oct 6, 2026
Benchmark
What it tracksRussell 1000 Growth IndexS&P 500 Growth Index
Cost and size
Expense ratio0.18%0.05%
Net assets, as of Sep 30, 2026$127.7bn$27.8bn
Holdings
Holdings in common76%
Top ten holdings, share of the fund57.5%60.2%

Holdings in common uses holdings dated Sep 30, 2026 and Oct 27, 2026. Method

Risk and return

Sep 17, 2010 to Oct 23, 2026 · 840 weekly returns
IWF VOOG
Return
Total return edge Tie +1,025.4% +1,043.0%
Annualized edge Tie +16.2% +16.3%
Price return edge Tie +849.1% +845.5%
Risk
Volatility edge VOOG (slight) 17.9% 17.5%
Max drawdown edge Tie −32.5% −32.0%
Downside capture 100.1% 99.7%
Beta 1.00 1.00
Risk-adjusted
Sharpe edge VOOG (slight) 0.84 0.86
Sortino edge VOOG (slight) 1.25 1.28
Treynor 0.149 0.151
Calmar edge VOOG (slight) 0.50 0.51
Against the benchmark
Alpha −0.1% a year +0.1% a year
Alpha t-stat −0.58 0.33
Information ratio −0.11 0.06
Tracking error 1.0% 0.9%

Each against its own benchmark: IWF against VONG, Oct 1, 2010 to Oct 23, 2026; VOOG against IVW, Sep 17, 2010 to Oct 23, 2026.

Reading

IWF and VOOG returned about the same: +1,025.4% and +1,043.0%. VOOG swung slightly less: 17.5% to 17.9%. IWF and VOOG fell about the same at their worst: −32.5% and −32.0%.

Full scorecard

19 measures, with how each is measured
Open ↓
Risk and return: IWF vs VOOG: Differences, Returns & Fees
MeasureIWFVOOGEdgeHow it is measured
Return
Total return+1,025.4%+1,043.0%TiePrice change plus distributions, reinvested.
Annualized+16.2%+16.3%TieTotal return as a yearly rate.
Price return+849.1%+845.5%TiePrice change alone, distributions left out.
Risk
Volatility17.9%17.5%VOOG (slight)Spread of weekly returns, annualized. Lower is steadier.
Downside deviation12.0%11.7%VOOG (slight)Like volatility, counting only weeks below the Treasury bill rate.
Max drawdown−32.5%−32.0%TieDeepest fall from a high to the low after it.
Upside capture99.8%99.6%Share of its benchmark's rise caught in the weeks it rose.
Downside capture100.1%99.7%Share of its benchmark's fall taken in the weeks it fell. Lower is better.
Beta1.001.00Not an edgeHow far it moves for each 1% its benchmark moves.
R squared1.001.00Not an edgeShare of its weekly moves its benchmark explains.
Risk-adjusted
Sharpe0.840.86VOOG (slight)Return above Treasury bills per unit of volatility.
Sortino1.251.28VOOG (slight)Return above Treasury bills per unit of downside deviation.
Treynor0.1490.151Return above Treasury bills per unit of beta.
Calmar0.500.51VOOG (slight)Annualized return divided by the max drawdown.
Against the benchmark
BenchmarkVONGIVWThe ETF each fund is measured against.
Alpha−0.1% a year+0.1% a yearNot significantYearly return beyond what its beta to the benchmark predicts.
Alpha t-stat−0.580.33Not an edgeHow sure the alpha is. Below 2, it could be chance.
Alpha range−0.6% to +0.3%−0.4% to +0.5%Includes zeroThe 95% range for the yearly alpha.
Information ratio−0.110.06Return against its benchmark per unit of tracking error.
Tracking error1.0%0.9%Not an edgeHow far weekly returns stray from the benchmark, annualized.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 840 weekly returns. Cash rate: the 13-week Treasury bill.

What they share

76%

By the books each fund has filed, IWF and VOOG hold 76% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 27, 2026.

0 half 100%

half

76% in common

Positions both hold · largest shared weight first IWF VOOG
NVIDIA 15.30% 15.01%
APPLE 8.18% 6.60%
MICROSOFT 5.94% 10.34%
ALPHABET CLASS A 5.62% 5.48%
BROADCOM INC 4.79% 4.54%
ALPHABET CLASS C 4.53% 4.39%
META PLATFORMS CLASS A 3.36% 4.34%
MICRON TECHNOLOGY 3.15% 3.27%
ADVANCED MICRO DEVICES 2.74% 2.71%
ELI LILLY 3.08% 2.51%
TESLA INC 3.58% 1.68%
PALANTIR TECHNOLOGIES CLASS A 1.33% 1.17%
Only in one fund ↓
Only in IWF
TEXAS INSTRUMENT 0.85%
HOME DEPOT 0.71%
COSTCO WHOLESALE CORP 0.58%
WESTERN DIGITAL CORP 0.39%
LOCKHEED MARTIN 0.38%
SNOWFLAKE 0.34%
MCKESSON CORP 0.32%
CLOUDFLARE CLASS A 0.32%
Only in VOOG
Berkshire Hathaway Inc 2.52%
JPMorgan Chase & Co 1.62%
Johnson & Johnson 1.02%
RTX Corp 0.68%
Cisco Systems Inc 0.61%
Philip Morris International Inc 0.45%
Welltower Inc 0.45%
Goldman Sachs Group Inc 0.43%
Check overlap with more funds →

Side by side

IWF iShares Russell 1000 Growth ETF VOOG Vanguard S&P 500 Growth ETF
Where it sits Stock ETF Stock ETF
What it is Tracks the Russell 1000 growth Tracks the S&P 500 Growth
Total return, 1 year +0.9% +12.1%
Its benchmark over the same days +1.1% (VONG) +12.1% (IVW)
Gap to its benchmark −0.2 pts vs VONG 0.0 pts vs IVW
Expense ratio 0.18% 0.05%
Already in the S&P 500 93.5% 99.8%
Holdings 374 154
Net assets, IWF as of Oct 27, 2026 and VOOG as of Sep 30, 2026 $124.7bn $27.8bn

IWF and VOOG on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

Client brief · page 1 of 2 Report BR-AE08470E4C

IWF and VOOG are built for the same job. How do they differ in cost, holdings and results?

  1. What each follows. IWF follows Russell 1000 Growth Index and VOOG follows S&P 500 Growth Index.
  2. One-year total return. Over 1 year to Oct 28, 2026 IWF returned +0.9% and VOOG +12.1% with distributions reinvested, a gap of 11.2 points.
  3. Cost. IWF charges 0.18% of assets a year and VOOG 0.05%, a gap of 0.13 points.

Data as of Oct 28, 2026.

The two-page PDF for this pair is coming. Save the comparison to follow its changes. Free. It needs an email sign-in, once.

Your saved page · Privacy.

Alert

IWF flows, by email on Sundays.

One-click unsubscribe. See Privacy.

About each fund
IWF

IWF tracks the Russell 1000 growth. Over the year to Oct 28, 2026 it returned +0.9% with distributions reinvested, against +1.1% for its benchmark, the Russell 1000 Growth Index. The prospectus expense ratio is 0.18% a year. By its holdings published by its issuer for Oct 27, 2026, 94% of the fund by weight is stocks the S&P 500 also holds, across 374 positions, with the top ten at 57.5%. It sat 4.8% below its high of Oct 6, 2026 on Oct 28, 2026.

VOOG

VOOG tracks the S&P 500 Growth. Over the year to Oct 28, 2026 it returned +12.1% with distributions reinvested, against +12.1% for its benchmark, the S&P 500 Growth Index. The prospectus expense ratio is 0.05% a year. By its holdings published by its issuer as of Sep 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 154 positions, with the top ten at 60.2%. It sat 4.1% below its high of Oct 6, 2026 on Oct 28, 2026.

Questions people ask

Which returned more over the last year, IWF or VOOG?
In the year to Oct 28, 2026, with distributions reinvested, IWF returned +0.9% and VOOG +12.1%.
Which is cheaper, IWF or VOOG?
VOOG is cheaper, by 0.13 percentage points a year. That is about $13 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do IWF and VOOG overlap with the S&P 500?
By their latest filed holdings, 94% of IWF and 100% of VOOG by weight is stocks the S&P 500 already holds.
Other comparisons
Cite this pageCitation, APA and Markdown

ETFIQ, IWF against VOOG, data as of Oct 28, 2026. https://etfiq.com/compare/any/iwf-vs-voog

Open data →

Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.