FNDX vs IWB: Holdings Overlap
FNDXSchwab Fundamental U.S. Large Company ETF
Schwab · 733 holdings · $27.4B · as of 2026-05-31
iShares · 1005 holdings · $49.9B · as of 2026-03-31
Holdings snapshots are 61 days apart (FNDX: 2026-05-31, 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 FNDX and IWB?
Schwab Fundamental U.S. Large Company ETF (FNDX, by Schwab) holds 733 positions; iShares Russell 1000 ETF (IWB, by iShares) holds 1005. They have 654 holdings in common, and by portfolio weight the two funds are 65.0% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 65.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 654FNDX holds 733 · IWB holds 1005
- Weight in Shared Holdings
- FNDX 97%·IWB 93%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 FNDX
79 of 733 positions (2.6% of the fund) are not held by IWB. Showing the top 30 by weight.
Only in IWB
351 of 1005 positions (6.6% of the fund) are not held by FNDX. Showing the top 30 by weight.
Sector Breakdown
| Sector | FNDX | IWB |
|---|---|---|
| Information Technology | 21.4% | 30.9% |
| Financials | 13.8% | 12.9% |
| Health Care | 11.8% | 9.6% |
| Communication Services | 9.9% | 10.2% |
| Consumer Discretionary | 8.7% | 10.0% |
| Other Sectors | 34.1% | 26.2% |
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 |
|---|---|---|---|---|---|---|---|
| FNDX | +3.1% | +19.7% | +33.0% | +20.0% | +14.0% | +14.3% | 1.43% |
| 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 FNDX vs IWB →
Shared Holdings(654)
The top 10 shared positions account for 30% of the overlap, led by AAPL, GOOGL and MSFT.
 AAPLApple Inc. COM | 4.63% | 6.10% | 4.63% |
|---|---|---|---|
 GOOGLAlphabet Inc. CAP STK CL A | 2.38% | 2.79% | 2.38% |
 MSFTMicrosoft Corp. COM | 2.32% | 4.58% | 2.32% |
 GOOGAlphabet Inc. CAP STK CL C | 1.89% | 2.27% | 1.89% |
 AMZNAmazon.com, Inc. COM | 1.85% | 3.33% | 1.85% |
 BRK-BBerkshire Hathaway, Inc., Class B | 1.41% | 1.47% | 1.41% |
 JPMJPMorgan Chase & Co. COM | 1.38% | 1.33% | 1.33% |
 METAMeta Platforms, Inc., Class A | 1.24% | 2.08% | 1.24% |
 XOMExxon Mobil Corp. COM | 2.28% | 1.20% | 1.20% |
 JNJJohnson & Johnson COM | 0.96% | 0.98% | 0.96% |
 WMTWalmart Inc COM | 1.01% | 0.90% | 0.90% |
 AVGOBroadcom Inc COM | 0.65% | 2.39% | 0.65% |
 CVXChevron Corp. COM | 1.48% | 0.65% | 0.65% |
 MUMicron Technology Inc. COM | 1.59% | 0.63% | 0.63% |
 PGThe Procter & Gamble Co. COM | 0.66% | 0.57% | 0.57% |
 NVDANVIDIA Corp. COM | 0.55% | 6.81% | 0.55% |
 CATCaterpillar Inc COM | 0.60% | 0.55% | 0.55% |
 BACBank of America Corp. COM | 0.87% | 0.53% | 0.53% |
 COSTCostco Wholesale Corporation COM | 0.53% | 0.74% | 0.53% |
 ABBVAbbVie Inc. COM | 0.53% | 0.64% | 0.53% |
 HDHome Depot, Inc. (The) | 0.52% | 0.55% | 0.52% |
 CSCOCisco Systems, Inc. COM | 0.90% | 0.52% | 0.52% |
 MRKMerck & Co., Inc COM | 0.68% | 0.50% | 0.50% |
 AMATApplied Materials Inc. COM | 0.47% | 0.45% | 0.45% |
 GSGoldman Sachs Group, Inc. (The) | 0.58% | 0.41% | 0.41% |
Showing the top 250 of 654 shared holdings by overlap weight.
Frequently Asked Questions
How much do FNDX and IWB overlap?
FNDX and IWB overlap by 65.0% of portfolio weight. They share 654 holdings (FNDX holds 733 positions and IWB holds 1005), based on each fund's latest SEC-reported holdings.
Is it redundant to own both FNDX and IWB?
The two portfolios are 65.0% 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 FNDX and IWB?
The largest positions held by both funds are AAPL, GOOGL, MSFT, GOOG and AMZN. Together the top 10 shared positions account for 30% of the total overlap.
What does FNDX own that IWB doesn't?
79 positions (2.6% of FNDX) are unique to FNDX, led by STX, LUMN and TEL. In the other direction, 351 positions (6.6% of IWB) are unique to IWB.