ITB vs XLB: Holdings Overlap
ITBiShares U.S. Home Construction ETF
iShares · 46 holdings · $2.3B · as of 2026-03-31
XLBState Street® Materials Select Sector SPDR® ETF
State Street (SPDR) · 25 holdings · $8.4B · as of 2026-08-06
Holdings snapshots are 128 days apart (ITB: 2026-03-31, XLB: 2026-08-06). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are ITB and XLB?
iShares U.S. Home Construction ETF (ITB, by iShares) holds 46 positions; State Street® Materials Select Sector SPDR® ETF (XLB, by State Street (SPDR)) holds 25. They have 1 holdings in common, and by portfolio weight the two funds are 4.7% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 4.7%Sum of the smaller weight of each shared holding
- Shared Holdings
- 1ITB holds 46 · XLB holds 25
- Weight in Shared Holdings
- ITB 5%·XLB 5%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in ITB
45 of 46 positions (95.1% of the fund) are not held by XLB. Showing the top 30 by weight.
Sector Breakdown
| Sector | ITB | XLB |
|---|---|---|
| Materials | 6.0% | 99.9% |
| Consumer Discretionary | 73.0% | 0.0% |
| Industrials | 20.8% | 0.0% |
| Other Sectors | 0.0% | 0.0% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| ITB | +1.3% | +5.4% | -1.5% | +5.3% | +8.1% | +14.1% | 0.64% |
| XLB | +2.6% | +17.5% | +22.4% | +10.0% | +6.8% | +10.2% | 1.61% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in ITB vs XLB →
Shared Holdings(1)
 SHWThe Sherwin-Williams Company COM | 4.68% | 5.22% | 4.68% |
|---|
Frequently Asked Questions
How much do ITB and XLB overlap?
ITB and XLB overlap by 4.7% of portfolio weight. They share 1 holdings (ITB holds 46 positions and XLB holds 25), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ITB and XLB?
The two portfolios are 4.7% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of ITB and XLB?
The largest positions held by both funds are SHW. Together the top 1 shared positions account for 100% of the total overlap.
What does ITB own that XLB doesn't?
45 positions (95.1% of ITB) are unique to ITB, led by DHI, PHM and LEN. In the other direction, 24 positions (94.6% of XLB) are unique to XLB.