IVV vs IYM: Holdings Overlap
iShares · 503 holdings · $901.0B · as of 2026-03-31
IYMiShares U.S. Basic Materials ETF
iShares · 38 holdings · $1.1B · as of 2026-04-30
Holdings snapshots are 30 days apart (IVV: 2026-03-31, IYM: 2026-04-30). 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 IVV and IYM?
iShares Core S&P 500 ETF (IVV, by iShares) holds 503 positions; iShares U.S. Basic Materials ETF (IYM, by iShares) holds 38. They have 15 holdings in common, and by portfolio weight the two funds are 1.4% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 1.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 15IVV holds 503 · IYM holds 38
- Weight in Shared Holdings
- IVV 1%·IYM 73%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 IVV
488 of 503 positions (98.3% of the fund) are not held by IYM. Showing the top 30 by weight.
Sector Breakdown
| Sector | IVV | IYM |
|---|---|---|
| Materials | 2.1% | 88.4% |
| Information Technology | 32.6% | 0.0% |
| Financials | 12.6% | 0.0% |
| Industrials | 9.0% | 11.4% |
| Communication Services | 10.5% | 0.0% |
| Other Sectors | 33.0% | 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 |
|---|---|---|---|---|---|---|---|
| IVV | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.05% |
| 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 IVV vs IYM →
Shared Holdings(15)
The top 10 shared positions account for 90% of the overlap, led by LIN, NEM and FCX.
 LINLinde PLC COM EUR0.001 | 0.41% | 19.89% | 0.41% |
|---|---|---|---|
 NEMNewmont Corporation COM | 0.21% | 10.51% | 0.21% |
 FCXFreeport-McMoRan Inc. CL B | 0.15% | 7.25% | 0.15% |
 ECLEcolab Inc. COM | 0.12% | 5.80% | 0.12% |
 APDAir Products & Chemicals, Inc. COM | 0.12% | 4.75% | 0.12% |
 FASTFastenal Co. COM | 0.10% | 3.88% | 0.10% |
 NUENucor Corporation COM | 0.07% | 4.43% | 0.07% |
 STLDSteel Dynamics, Inc. COM | 0.04% | 3.38% | 0.04% |
 ALBAlbemarle Corp COM | 0.04% | 2.57% | 0.04% |
 LYBLyondellBasell Industries NV COM EUR0.04 CLASS 'A' | 0.04% | 2.13% | 0.04% |
 CFCF Industries Holdings, Inc. COM | 0.04% | 2.15% | 0.04% |
 IPInternational Paper Co. COM | 0.03% | 1.77% | 0.03% |
 IFFInternational Flavors & Fragrances Inc. COM | 0.03% | 2.00% | 0.03% |
 AVYAvery Dennison Corporation COM | 0.02% | 1.40% | 0.02% |
 MOSThe Mosaic Company COM | 0.01% | 0.82% | 0.01% |
Frequently Asked Questions
How much do IVV and IYM overlap?
IVV and IYM overlap by 1.4% of portfolio weight. They share 15 holdings (IVV holds 503 positions and IYM holds 38), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IVV and IYM?
The two portfolios are 1.4% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IVV and IYM?
The largest positions held by both funds are LIN, NEM, FCX, ECL and APD. Together the top 10 shared positions account for 90% of the total overlap.
What does IVV own that IYM doesn't?
488 positions (98.3% of IVV) are unique to IVV, led by NVDA, AAPL and MSFT. In the other direction, 23 positions (27.1% of IYM) are unique to IYM.