Data as of Oct 28, 2026.
IGM vs IWB: Differences, Returns & Fees
Over the year to Oct 28, 2026, IGM returned +21.7% to IWB's +13.1%; 44% of their weight is in the same names.
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Net assets: $11.0bn on Oct 27, 2026 for iShares Expanded Tech Sector ETF, and $49.1bn on Oct 28, 2026 for iShares Russell 1000 ETF.
Pair scorecard
IWB costs 0.22 points a year less; their one-year returns differ by 8.6 points; IWB is 4.5 times larger.
| Measure | IGM | IWB |
|---|---|---|
| Return | ||
| Total return, 1 year | +21.7% | +13.1% |
| Drawdown | ||
| Below its high | 6.2%, high on Oct 6, 2026 | |
| Benchmark | ||
| What it tracks | S&P North American Expanded Technology Sector Index | Russell 1000 Index |
| Cost and size | ||
| Expense ratio | 0.37% | 0.15% |
| Net assets, as of Oct 26, 2026 | $10.9bn | $48.7bn |
| Holdings | ||
| Holdings in common | 44% | |
| Top ten holdings, share of the fund | 56.8% | 35.3% |
Holdings in common uses holdings dated Oct 27, 2026. Method
Risk and return
Mar 30, 2001 to Oct 23, 2026 · 1,334 weekly returnsIGM returned more: +1,968.5% to +949.5%. IWB swung less: 17.6% to 23.5%. IWB fell less at its worst: −54.8% to −62.6%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | IGM | IWB | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +1,968.5% | +949.5% | IGM | Price change plus distributions, reinvested. |
| Annualized | +12.5% | +9.6% | IGM | Total return as a yearly rate. |
| Price return | +1,744.2% | +582.9% | IGM | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 23.5% | 17.6% | IWB | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 16.1% | 12.5% | IWB | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −62.6% | −54.8% | IWB | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | 0.55 | 0.51 | IGM (slight) | Return above Treasury bills per unit of volatility. |
| Sortino | 0.80 | 0.72 | IGM (slight) | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.20 | 0.18 | IGM | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 1,334 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, IGM and IWB hold 44% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
44% in common
Only in one fund ↓
Side by side
IGM and IWB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IGM and IWB do different jobs. What does each one do in a portfolio?
- What each follows. IGM follows S&P North American Expanded Technology Sector Index and IWB follows Russell 1000 Index.
- Holdings in common. 44% of the weight is in the same securities (holdings dated Oct 27, 2026).
- One-year total return. Over 1 year to Oct 28, 2026 IGM returned +21.7% and IWB +13.1% with distributions reinvested, a gap of 8.6 points.
Data as of Oct 28, 2026.
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IGM
IGM tracks an index of Expanded Tech Sector. Over the year to Oct 28, 2026 it returned +21.7% with distributions reinvested. The prospectus expense ratio is 0.37% a year. By its holdings published by its issuer for Oct 27, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 295 positions, with the top ten at 56.8%. It sat 6.2% below its high of Oct 6, 2026 on Oct 28, 2026.
IWB
IWB tracks the Russell 1000. Over the year to Oct 28, 2026 it returned +13.1% with distributions reinvested, against +13.2% for its benchmark, the Russell 1000 Index. The prospectus expense ratio is 0.15% a year. By its holdings published by its issuer for Oct 27, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1,025 positions, with the top ten at 35.3%.
Questions people ask
- Which returned more over the last year, IGM or IWB?
- In the year to Oct 28, 2026, with distributions reinvested, IGM returned +21.7% and IWB +13.1%.
- Which is cheaper, IGM or IWB?
- IWB is cheaper, by 0.22 percentage points a year. That is about $22 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, IGM against IWB, data as of Oct 28, 2026. https://etfiq.com/compare/any/igm-vs-iwb
ETFIQ. (Oct 28, 2026). IGM against IWB. Retrieved from https://etfiq.com/compare/any/igm-vs-iwb
[IGM against IWB (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/igm-vs-iwb)
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