Data as of Oct 28, 2026.
IWF vs SPMO: Differences, Returns & Fees
Over the year to Oct 28, 2026, IWF returned +0.9% to SPMO's +18.4%; 33% of their weight is in the same names.
askIQ about this page
askIQ about IWF and SPMO
Net assets on Oct 27, 2026: $124.7bn for iShares Russell 1000 Growth ETF and $22.3bn for Invesco S&P 500 Momentum ETF.
Pair scorecard
SPMO costs 0.05 points a year less; their one-year returns differ by 17.5 points; IWF is 5.6 times larger.
| Measure | IWF | SPMO |
|---|---|---|
| Return | ||
| Total return, 1 year | +0.9% | +18.4% |
| Drawdown | ||
| Below its high | 4.8%, high on Oct 6, 2026 | 10.2%, high on Jun 22, 2026 |
| Benchmark | ||
| What it tracks | Russell 1000 Growth Index | S&P 500 Momentum Index |
| Cost and size | ||
| Expense ratio | 0.18% | 0.13% |
| Net assets, as of Oct 27, 2026 | $124.7bn | $22.3bn |
| Holdings | ||
| Holdings in common | 33% | |
| Top ten holdings, share of the fund | 57.5% | 50.7% |
Holdings in common uses holdings dated Oct 27, 2026. Method
Risk and return
Oct 23, 2015 to Oct 23, 2026 · 574 weekly returnsEach against its own benchmark: IWF against VONG, Oct 1, 2010 to Oct 23, 2026; SPMO against VOO, Oct 23, 2015 to Oct 23, 2026.
SPMO returned more: +519.8% to +424.1%. IWF and SPMO swung about the same: 19.3% and 19.0%. SPMO fell less at its worst: −28.3% to −32.5%.
Full scorecard
19 measures, with how each is measured Open ↓
| Measure | IWF | SPMO | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +424.1% | +519.8% | SPMO | Price change plus distributions, reinvested. |
| Annualized | +16.2% | +18.0% | SPMO (slight) | Total return as a yearly rate. |
| Price return | +376.6% | +442.9% | SPMO | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 19.3% | 19.0% | Tie | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 13.0% | 12.6% | SPMO (slight) | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −32.5% | −28.3% | SPMO | Deepest fall from a high to the low after it. |
| Upside capture | 99.8% | 98.9% | Share of its benchmark's rise caught in the weeks it rose. | |
| Downside capture | 100.1% | 93.8% | Share of its benchmark's fall taken in the weeks it fell. Lower is better. | |
| Beta | 1.00 | 0.98 | Not an edge | How far it moves for each 1% its benchmark moves. |
| R squared | 1.00 | 0.74 | Not an edge | Share of its weekly moves its benchmark explains. |
| Risk-adjusted | ||||
| Sharpe | 0.75 | 0.84 | SPMO | Return above Treasury bills per unit of volatility. |
| Sortino | 1.12 | 1.27 | SPMO | Return above Treasury bills per unit of downside deviation. |
| Treynor | 0.149 | 0.164 | Return above Treasury bills per unit of beta. | |
| Calmar | 0.50 | 0.63 | SPMO | Annualized return divided by the max drawdown. |
| Against the benchmark | ||||
| Benchmark | VONG | VOO | The ETF each fund is measured against. | |
| Alpha | −0.1% a year | +3.8% a year | Not significant | Yearly return beyond what its beta to the benchmark predicts. |
| Alpha t-stat | −0.58 | 1.28 | Not an edge | How sure the alpha is. Below 2, it could be chance. |
| Alpha range | −0.6% to +0.3% | −2.0% to +9.5% | Includes zero | The 95% range for the yearly alpha. |
| Information ratio | −0.11 | 0.36 | Return against its benchmark per unit of tracking error. | |
| Tracking error | 1.0% | 9.7% | Not an edge | How far weekly returns stray from the benchmark, annualized. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 574 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, IWF and SPMO hold 33% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
33% in common
Only in one fund ↓
Side by side
IWF and SPMO on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IWF and SPMO do different jobs. What does each one do in a portfolio?
- What each follows. IWF follows Russell 1000 Growth Index and SPMO follows S&P 500 Momentum Index.
- Holdings in common. 33% of the weight is in the same securities (holdings dated Oct 27, 2026).
- One-year total return. Over 1 year to Oct 28, 2026 IWF returned +0.9% and SPMO +18.4% with distributions reinvested, a gap of 17.5 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.
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.
SPMO
SPMO tracks the S&P 500 Momentum. Over the year to Oct 28, 2026 it returned +18.4% with distributions reinvested, against +13.7% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.13% a year. By its holdings published by its issuer for Oct 27, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 101 positions, with the top ten at 50.7%. It sat 10.2% below its high of Jun 22, 2026 on Oct 28, 2026.
Questions people ask
- Which returned more over the last year, IWF or SPMO?
- In the year to Oct 28, 2026, with distributions reinvested, IWF returned +0.9% and SPMO +18.4%.
- Which is cheaper, IWF or SPMO?
- SPMO is cheaper, by 0.05 percentage points a year. That is about $5 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.
Cite this pageCitation, APA and Markdown
ETFIQ, IWF against SPMO, data as of Oct 28, 2026. https://etfiq.com/compare/any/iwf-vs-spmo
ETFIQ. (Oct 28, 2026). IWF against SPMO. Retrieved from https://etfiq.com/compare/any/iwf-vs-spmo
[IWF against SPMO (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/iwf-vs-spmo)
Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.