DFAC vs IWB: Holdings Overlap
DFACDimensional U.S. Core Equity 2 ETF
Dimensional · 2546 holdings · $47.9B · as of 2026-04-30
iShares · 1005 holdings · $49.9B · as of 2026-03-31
Holdings snapshots are 30 days apart (DFAC: 2026-04-30, IWB: 2026-03-31). 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 DFAC and IWB?
Dimensional U.S. Core Equity 2 ETF (DFAC, by Dimensional) holds 2546 positions; iShares Russell 1000 ETF (IWB, by iShares) holds 1005. They have 890 holdings in common, and by portfolio weight the two funds are 71.7% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 71.7%Sum of the smaller weight of each shared holding
- Shared Holdings
- 890DFAC holds 2546 · IWB holds 1005
- Weight in Shared Holdings
- DFAC 88%·IWB 97%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 DFAC
1656 of 2546 positions (11.8% of the fund) are not held by IWB. Showing the top 30 by weight.
Sector Breakdown
| Sector | DFAC | IWB |
|---|---|---|
| Information Technology | 27.1% | 30.9% |
| Financials | 14.6% | 12.9% |
| Industrials | 13.6% | 9.9% |
| Consumer Discretionary | 10.2% | 10.0% |
| Communication Services | 8.4% | 10.2% |
| Other Sectors | 25.4% | 26.0% |
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 |
|---|---|---|---|---|---|---|---|
| DFAC | +3.7% | +16.6% | +26.8% | +19.5% | +12.3% | — | 0.88% |
| IWB | +3.4% | +13.9% | +23.1% | +20.9% | +12.6% | +15.0% | 0.89% |
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 DFAC vs IWB →
Shared Holdings(890)
The top 10 shared positions account for 36% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 5.60% | 6.81% | 5.60% |
|---|---|---|---|
 AAPLApple Inc. COM | 4.68% | 6.10% | 4.68% |
 MSFTMicrosoft Corp. COM | 3.92% | 4.58% | 3.92% |
 AMZNAmazon.com, Inc. COM | 3.06% | 3.33% | 3.06% |
 GOOGLAlphabet Inc. CAP STK CL A | 2.14% | 2.79% | 2.14% |
 METAMeta Platforms, Inc., Class A | 1.87% | 2.08% | 1.87% |
 GOOGAlphabet Inc. CAP STK CL C | 1.69% | 2.27% | 1.69% |
 JPMJPMorgan Chase & Co. COM | 1.00% | 1.33% | 1.00% |
 AVGOBroadcom Inc COM | 0.95% | 2.39% | 0.95% |
 XOMExxon Mobil Corp. COM | 0.88% | 1.20% | 0.88% |
 LLYEli Lilly & Co. COM | 0.87% | 1.23% | 0.87% |
 JNJJohnson & Johnson COM | 0.82% | 0.98% | 0.82% |
 BRK-BBerkshire Hathaway, Inc., Class B | 0.71% | 1.47% | 0.71% |
 VVisa, Inc., Class A | 0.65% | 0.85% | 0.65% |
 MUMicron Technology Inc. COM | 0.71% | 0.63% | 0.63% |
 CVXChevron Corp. COM | 0.56% | 0.65% | 0.56% |
 PGThe Procter & Gamble Co. COM | 0.50% | 0.57% | 0.50% |
 CATCaterpillar Inc COM | 0.49% | 0.55% | 0.49% |
 MAMasterCard Incorporated CL A | 0.48% | 0.67% | 0.48% |
 COSTCostco Wholesale Corporation COM | 0.47% | 0.74% | 0.47% |
 CSCOCisco Systems, Inc. COM | 0.46% | 0.52% | 0.46% |
 NFLXNetflix, Inc. COM | 0.41% | 0.68% | 0.41% |
 ABBVAbbVie Inc. COM | 0.40% | 0.64% | 0.40% |
 KOCoca-Cola Co (The) COM | 0.39% | 0.49% | 0.39% |
 HDHome Depot, Inc. (The) | 0.38% | 0.55% | 0.38% |
Showing the top 250 of 890 shared holdings by overlap weight.
Frequently Asked Questions
How much do DFAC and IWB overlap?
DFAC and IWB overlap by 71.7% of portfolio weight. They share 890 holdings (DFAC holds 2546 positions and IWB holds 1005), based on each fund's latest SEC-reported holdings.
Is it redundant to own both DFAC and IWB?
The two portfolios are 71.7% identical by weight. Owning both mostly doubles down on the shared core rather than diversifying: the same large positions drive both funds.
What are the biggest shared holdings of DFAC and IWB?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and GOOGL. Together the top 10 shared positions account for 36% of the total overlap.
What does DFAC own that IWB doesn't?
1656 positions (11.8% of DFAC) are unique to DFAC, led by NXPI, STX and TEL. In the other direction, 115 positions (2.9% of IWB) are unique to IWB.