DFAS vs XSD: Holdings Overlap
DFASDimensional U.S. Small Cap ETF
Dimensional · 2121 holdings · $15.3B · as of 2026-04-30
XSDState Street® SPDR® S&P® Semiconductor ETF
State Street (SPDR) · 46 holdings · $2.9B · as of 2026-08-06
Holdings snapshots are 98 days apart (DFAS: 2026-04-30, XSD: 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 DFAS and XSD?
Dimensional U.S. Small Cap ETF (DFAS, by Dimensional) holds 2121 positions; State Street® SPDR® S&P® Semiconductor ETF (XSD, by State Street (SPDR)) holds 46. They have 23 holdings in common, and by portfolio weight the two funds are 2.0% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 2.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 23DFAS holds 2121 · XSD holds 46
- Weight in Shared Holdings
- DFAS 2%·XSD 48%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 DFAS
2098 of 2121 positions (97.8% of the fund) are not held by XSD. Showing the top 30 by weight.
Sector Breakdown
| Sector | DFAS | XSD |
|---|---|---|
| Information Technology | 12.0% | 95.2% |
| Industrials | 20.6% | 1.8% |
| Financials | 19.2% | 0.0% |
| Consumer Discretionary | 12.4% | 0.0% |
| Health Care | 11.1% | 0.0% |
| Other Sectors | 21.9% | 0.0% |
| Unclassified | 2.7% | 2.9% |
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. “Unclassified” is weight we could not classify (3% of DFAS, 3% of XSD).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| DFAS | +3.2% | +20.5% | +31.3% | +14.8% | +9.1% | — | 0.95% |
| XSD | +1.8% | +69.5% | +104.0% | +35.6% | +22.7% | +27.6% | 0.14% |
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 DFAS vs XSD →
Shared Holdings(23)
The top 10 shared positions account for 73% of the overlap, led by RMBS, CRUS and SWKS.
 RMBSRambus Inc. COM | 0.24% | 1.82% | 0.24% |
|---|---|---|---|
 CRUSCirrus Logic, Inc. COM | 0.18% | 2.01% | 0.18% |
 SWKSSkyworks Solutions, Inc. COM | 0.17% | 2.44% | 0.17% |
 QRVOQorvo Inc COM | 0.16% | 2.58% | 0.16% |
 ALGMAllegro MicroSystems Inc COM | 0.16% | 2.45% | 0.16% |
 MXLMaxlinear Inc COM | 0.14% | 2.50% | 0.14% |
 DIODDiodes Incorporated COM | 0.12% | 2.52% | 0.12% |
 SLABSilicon Laboratories, Inc. COM | 0.11% | 2.57% | 0.11% |
 POWIPower Integrations Inc. COM | 0.09% | 2.03% | 0.09% |
 LSCCLattice Semiconductor Corporation COM | 0.09% | 2.49% | 0.09% |
 OLEDUniversal Display Corporation | 0.09% | 2.56% | 0.09% |
 SYNASynaptics Incorporated COM | 0.09% | 2.03% | 0.09% |
 MTSIMACOM Technology Solutions Holdings Inc. COM | 0.08% | 2.19% | 0.08% |
 AMBAAmbarella Inc COM USD0.00045 | 0.07% | 3.44% | 0.07% |
 SITMSitime Corporation COM | 0.04% | 2.66% | 0.04% |
 PENGPenguin Solutions Inc COM | 0.04% | 2.47% | 0.04% |
 SMTCSemtech Corporation COM | 0.03% | 2.24% | 0.03% |
 AOSLAlpha & Omega Semiconductor Ltd. COM USD0.002 | 0.03% | 1.61% | 0.03% |
 NVTSNavitas Semiconductor Corporation COM | 0.03% | 1.55% | 0.03% |
 CEVACeva Inc COM | 0.02% | 0.88% | 0.02% |
 INDIIndie Semiconductor Inc. CLASS A COM | 0.02% | 1.48% | 0.02% |
 MRAMEVERSPIN TECHNOLOGIES INC | 0.01% | 0.49% | 0.01% |
 NVECNVE Corp. COM NEW | 0.01% | 0.60% | 0.01% |
Frequently Asked Questions
How much do DFAS and XSD overlap?
DFAS and XSD overlap by 2.0% of portfolio weight. They share 23 holdings (DFAS holds 2121 positions and XSD holds 46), based on each fund's latest SEC-reported holdings.
Is it redundant to own both DFAS and XSD?
The two portfolios are 2.0% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of DFAS and XSD?
The largest positions held by both funds are RMBS, CRUS, SWKS, QRVO and ALGM. Together the top 10 shared positions account for 73% of the total overlap.
What does DFAS own that XSD doesn't?
2098 positions (97.8% of DFAS) are unique to DFAS, led by AMKR, TTMI and AEIS. In the other direction, 23 positions (52.4% of XSD) are unique to XSD.