Data as of Oct 28, 2026.
IWF vs VONG: Differences, Returns & Fees
Over the year to Oct 28, 2026, IWF returned +0.9% to VONG's +1.1%; 96% of their weight is in the same names.
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Net assets: $124.7bn on Oct 27, 2026 for iShares Russell 1000 Growth ETF, and $47.1bn on Sep 30, 2026 for Vanguard Russell 1000 Growth ETF.
Pair scorecard
VONG costs 0.12 points a year less; their one-year returns differ by 0.2 points; IWF is 2.7 times larger.
| Measure | IWF | VONG |
|---|---|---|
| Return | ||
| Total return, 1 year | +0.9% | +1.1% |
| Drawdown | ||
| Below its high | 4.8%, high on Oct 6, 2026 | |
| Benchmark | ||
| What it tracks | Russell 1000 Growth Index | Russell 1000 Growth Index |
| Cost and size | ||
| Expense ratio | 0.18% | 0.06% |
| Net assets, as of Sep 30, 2026 | $127.7bn | $47.1bn |
| Holdings | ||
| Holdings in common | 96% | |
| Top ten holdings, share of the fund | 57.5% | 57.6% |
Holdings in common uses holdings dated Sep 30, 2026 and Oct 27, 2026. Method
Risk and return
Oct 1, 2010 to Oct 23, 2026 · 838 weekly returnsEach against its own benchmark: IWF against VONG, Oct 1, 2010 to Oct 23, 2026; VONG against IWF, Oct 1, 2010 to Oct 23, 2026.
VONG returned slightly more: +1,017.5% to +997.0%. IWF and VONG swung about the same: 17.9% and 17.9%. IWF and VONG fell about the same at their worst: −32.5% and −32.5%.
Full scorecard
19 measures, with how each is measured Open ↓
| Measure | IWF | VONG | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +997.0% | +1,017.5% | VONG (slight) | Price change plus distributions, reinvested. |
| Annualized | +16.0% | +16.2% | Tie | Total return as a yearly rate. |
| Price return | +828.1% | +840.0% | Tie | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 17.9% | 17.9% | Tie | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 12.0% | 12.0% | Tie | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −32.5% | −32.5% | Tie | Deepest fall from a high to the low after it. |
| Upside capture | 99.8% | 99.9% | Share of its benchmark's rise caught in the weeks it rose. | |
| Downside capture | 100.1% | 99.8% | Share of its benchmark's fall taken in the weeks it fell. Lower is better. | |
| Beta | 1.00 | 0.99 | Not an edge | How far it moves for each 1% its benchmark moves. |
| R squared | 1.00 | 1.00 | Not an edge | Share of its weekly moves its benchmark explains. |
| Risk-adjusted | ||||
| Sharpe | 0.83 | 0.84 | Tie | Return above Treasury bills per unit of volatility. |
| Sortino | 1.24 | 1.25 | Tie | Return above Treasury bills per unit of downside deviation. |
| Treynor | 0.149 | 0.151 | Return above Treasury bills per unit of beta. | |
| Calmar | 0.49 | 0.50 | Tie | Annualized return divided by the max drawdown. |
| Against the benchmark | ||||
| Benchmark | VONG | IWF | The ETF each fund is measured against. | |
| Alpha | −0.1% a year | +0.2% a year | Not significant | Yearly return beyond what its beta to the benchmark predicts. |
| Alpha t-stat | −0.58 | 0.76 | Not an edge | How sure the alpha is. Below 2, it could be chance. |
| Alpha range | −0.6% to +0.3% | −0.3% to +0.7% | Includes zero | The 95% range for the yearly alpha. |
| Information ratio | −0.11 | 0.11 | Return against its benchmark per unit of tracking error. | |
| Tracking error | 1.0% | 1.0% | Not an edge | How far weekly returns stray from the benchmark, annualized. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 838 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, IWF and VONG hold 96% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 27, 2026.
half
96% in common
Only in one fund ↓
Side by side
IWF and VONG on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IWF and VONG are built for the same job. How do they differ in cost, holdings and results?
- Cost. IWF charges 0.18% of assets a year and VONG 0.06%, a gap of 0.12 points.
- What each follows (similar). Both follow Russell 1000 Growth Index.
- Holdings in common (similar). 96% of the weight is in the same securities (holdings dated Oct 27, 2026 and Sep 30, 2026).
Data as of Oct 28, 2026.
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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.
VONG
VONG tracks the Russell 1000 Growth. Over the year to Oct 28, 2026 it returned +1.1% with distributions reinvested, against +0.9% for its benchmark, the Russell 1000 Growth Index. The prospectus expense ratio is 0.06% a year. By its holdings published by its issuer as of Sep 30, 2026, 96% of the fund by weight is stocks the S&P 500 also holds, across 373 positions, with the top ten at 57.6%.
Questions people ask
- Which returned more over the last year, IWF or VONG?
- In the year to Oct 28, 2026, with distributions reinvested, IWF returned +0.9% and VONG +1.1%.
- Which is cheaper, IWF or VONG?
- VONG is cheaper, by 0.12 percentage points a year. That is about $12 on $10,000 held for a year. Fees come from each fund's prospectus.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, IWF against VONG, data as of Oct 28, 2026. https://etfiq.com/compare/any/iwf-vs-vong
ETFIQ. (Oct 28, 2026). IWF against VONG. Retrieved from https://etfiq.com/compare/any/iwf-vs-vong
[IWF against VONG (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/iwf-vs-vong)
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