Data as of Oct 28, 2026.
IYM vs XLB: Differences, Returns & Fees
Over the year to Oct 28, 2026, IYM returned +25.8% to XLB's +18.5%; 53% of their weight is in the same names.
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askIQ about IYM and XLBNet assets on Oct 27, 2026: $1.3bn for iShares U.S. Basic Materials ETF and $8.1bn for State Street Materials Select Sector SPDR ETF.
Pair scorecard
XLB costs 0.29 points a year less; their one-year returns differ by 7.3 points; XLB is 6.2 times larger.
| Measure | IYM | XLB |
|---|---|---|
| Return | ||
| Total return, 1 year | +25.8% | +18.5% |
| Drawdown | ||
| Below its high | 7.0%, high on Aug 25, 2026 | |
| Benchmark | ||
| What it tracks | Russell 1000 Basic Materials RIC 22 | Materials Select Sector Index |
| Cost and size | ||
| Expense ratio | 0.37% | 0.08% |
| Net assets, as of Oct 27, 2026 | $1.3bn | $8.1bn |
| Holdings | ||
| Holdings in common | 53% | |
| Top ten holdings, share of the fund | 68.6% | 58.5% |
Holdings in common uses holdings dated Oct 27, 2026. Method
Risk and return
Jun 30, 2000 to Oct 23, 2026 · 1,373 weekly returnsXLB returned more: +851.1% to +716.5%. XLB swung slightly less: 22.1% to 24.5%. XLB fell less at its worst: −59.0% to −66.1%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | IYM | XLB | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +716.5% | +851.1% | XLB | Price change plus distributions, reinvested. |
| Annualized | +8.3% | +8.9% | XLB (slight) | Total return as a yearly rate. |
| Price return | +412.9% | +422.5% | XLB (slight) | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 24.5% | 22.1% | XLB (slight) | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 17.3% | 15.4% | XLB | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −66.1% | −59.0% | XLB | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | 0.38 | 0.42 | XLB (slight) | Return above Treasury bills per unit of volatility. |
| Sortino | 0.53 | 0.60 | XLB | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.13 | 0.15 | XLB | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 1,373 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, IYM and XLB hold 53% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
53% in common
Only in one fund ↓
Side by side
IYM and XLB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IYM and XLB are built for the same job. How do they differ in cost, holdings and results?
- What each follows. IYM follows Russell 1000 Basic Materials RIC 22 and XLB follows Materials Select Sector Index.
- One-year total return. Over 1 year to Oct 28, 2026 IYM returned +25.8% and XLB +18.5% with distributions reinvested, a gap of 7.3 points.
- Cost. IYM charges 0.37% of assets a year and XLB 0.08%, a gap of 0.29 points.
Data as of Oct 28, 2026.
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IYM
IYM tracks an index. Over the year to Oct 28, 2026 it returned +25.8% with distributions reinvested, against +13.1% for its benchmark, the Russell 1000 Index. The prospectus expense ratio is 0.37% a year. By its holdings published by its issuer for Oct 27, 2026, 73% of the fund by weight is stocks the S&P 500 also holds, across 41 positions, with the top ten at 68.6%. It sat 7.0% below its high of Aug 25, 2026 on Oct 28, 2026.
XLB
XLB tracks an index of Materials. Over the year to Oct 28, 2026 it returned +18.5% with distributions reinvested. The prospectus expense ratio is 0.08% 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 25 positions, with the top ten at 58.5%.
Questions people ask
- Which returned more over the last year, IYM or XLB?
- In the year to Oct 28, 2026, with distributions reinvested, IYM returned +25.8% and XLB +18.5%.
- Which is cheaper, IYM or XLB?
- XLB is cheaper, by 0.29 percentage points a year. That is about $29 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, IYM against XLB, data as of Oct 28, 2026. https://etfiq.com/compare/any/iym-vs-xlb
ETFIQ. (Oct 28, 2026). IYM against XLB. Retrieved from https://etfiq.com/compare/any/iym-vs-xlb
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