Data as of Oct 28, 2026.
MDY vs XLB: Differences, Returns & Fees
Over the year to Oct 28, 2026, MDY returned +12.8% to XLB's +18.5%; 0% of their weight is in the same names.
askIQ about this page
askIQ about MDY and XLB
Net assets on Oct 27, 2026: $25.9bn for SPDR S&P MidCap 400 ETF Trust and $8.1bn for State Street Materials Select Sector SPDR ETF.
Pair scorecard
XLB costs 0.15 points a year less; their one-year returns differ by 5.7 points; MDY is 3.2 times larger.
| Measure | MDY | XLB |
|---|---|---|
| Return | ||
| Total return, 1 year | +12.8% | +18.5% |
| Drawdown | ||
| Below its high | 6.5%, high on Aug 14, 2026 | |
| Benchmark | ||
| What it tracks | S&P MidCap 400 Index | Materials Select Sector Index |
| Cost and size | ||
| Expense ratio | 0.23% | 0.08% |
| Net assets, as of Oct 27, 2026 | $25.9bn | $8.1bn |
| Holdings | ||
| Holdings in common | 0% | |
| Top ten holdings, share of the fund | 7.5% | 58.5% |
Holdings in common uses holdings dated Oct 27, 2026. Method
What they share
By the books each fund has filed, MDY and XLB hold 0% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
0% in common
Only in one fund ↓
Side by side
MDY and XLB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
MDY
MDY tracks the S&P MidCap 400. Over the year to Oct 28, 2026 it returned +12.8% with distributions reinvested, against +13.2% for its benchmark, the S&P MidCap 400 Index. The prospectus expense ratio is 0.23% a year. By its holdings published by its issuer for Oct 27, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 401 positions, with the top ten at 7.5%. It sat 6.5% below its high of Aug 14, 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, MDY or XLB?
- In the year to Oct 28, 2026, with distributions reinvested, MDY returned +12.8% and XLB +18.5%.
- Which is cheaper, MDY or XLB?
- XLB is cheaper, by 0.15 percentage points a year. That is about $15 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, MDY against XLB, data as of Oct 28, 2026. https://etfiq.com/compare/any/mdy-vs-xlb
ETFIQ. (Oct 28, 2026). MDY against XLB. Retrieved from https://etfiq.com/compare/any/mdy-vs-xlb
[MDY against XLB (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/mdy-vs-xlb)
Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.