DFSV vs IYM: Holdings Overlap
DFSVDimensional US Small Cap Value ETF
Dimensional · 1029 holdings · $8.2B · as of 2026-04-30
IYMiShares U.S. Basic Materials ETF
iShares · 38 holdings · $1.1B · as of 2026-04-30
How similar are DFSV and IYM?
Dimensional US Small Cap Value ETF (DFSV, by Dimensional) holds 1029 positions; iShares U.S. Basic Materials ETF (IYM, by iShares) holds 38. They have 11 holdings in common, and by portfolio weight the two funds are 2.8% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 2.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 11DFSV holds 1029 · IYM holds 38
- Weight in Shared Holdings
- DFSV 3%·IYM 8%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 DFSV
1018 of 1029 positions (97.0% of the fund) are not held by IYM. Showing the top 30 by weight.
Sector Breakdown
| Sector | DFSV | IYM |
|---|---|---|
| Materials | 6.1% | 88.4% |
| Financials | 26.4% | 0.0% |
| Industrials | 14.9% | 11.4% |
| Consumer Discretionary | 12.7% | 0.0% |
| Energy | 12.6% | 0.0% |
| Other Sectors | 23.4% | 0.0% |
| Unclassified | 3.6% | 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. “Unclassified” is weight we could not classify (4% of DFSV, 0% of IYM).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| DFSV | +4.5% | +23.4% | +37.6% | +15.2% | — | — | 1.33% |
| IYM | +5.2% | +23.1% | +34.0% | +13.6% | +9.2% | +10.8% | 1.24% |
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 DFSV vs IYM →
Shared Holdings(11)
The top 10 shared positions account for 95% of the overlap, led by MOS, EMN and TKR.
 MOSThe Mosaic Company COM | 0.49% | 0.82% | 0.49% |
|---|---|---|---|
 EMNEastman Chemical Company COM | 0.48% | 0.92% | 0.48% |
 TKRThe Timken Company COM | 0.30% | 0.77% | 0.30% |
 AAAlcoa Corporation COM | 0.26% | 1.83% | 0.26% |
 WLKWestlake Corporation COM | 0.23% | 0.43% | 0.23% |
 OLNOlin Corporation COM PAR $1 | 0.22% | 0.36% | 0.22% |
 CECelanese Corporation COM | 0.19% | 0.82% | 0.19% |
 HUNHuntsman Corporation COM | 0.17% | 0.26% | 0.17% |
 ASHAshland Inc. COM | 0.17% | 0.27% | 0.17% |
 ESIElement Solutions Inc COM | 0.14% | 1.07% | 0.14% |
 CLFCleveland-Cliffs Inc COM | 0.13% | 0.64% | 0.13% |
Frequently Asked Questions
How much do DFSV and IYM overlap?
DFSV and IYM overlap by 2.8% of portfolio weight. They share 11 holdings (DFSV holds 1029 positions and IYM holds 38), based on each fund's latest SEC-reported holdings.
Is it redundant to own both DFSV and IYM?
The two portfolios are 2.8% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of DFSV and IYM?
The largest positions held by both funds are MOS, EMN, TKR, AA and WLK. Together the top 10 shared positions account for 95% of the total overlap.
What does DFSV own that IYM doesn't?
1018 positions (97.0% of DFSV) are unique to DFSV, led by DINO, OVV and APA. In the other direction, 27 positions (91.6% of IYM) are unique to IYM.