IVV vs SPSM: Holdings Overlap
iShares · 503 holdings · $901.0B · as of 2026-03-31
SPSMState Street® SPDR® Portfolio S&P 600™ Small Cap ETF
State Street (SPDR) · 604 holdings · $17.3B · as of 2026-08-06
Holdings snapshots are 128 days apart (IVV: 2026-03-31, SPSM: 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 IVV and SPSM?
iShares Core S&P 500 ETF (IVV, by iShares) holds 503 positions; State Street® SPDR® Portfolio S&P 600™ Small Cap ETF (SPSM, by State Street (SPDR)) holds 604. They have 4 holdings in common, and by portfolio weight the two funds are 0.1% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 4IVV holds 503 · SPSM holds 604
- Weight in Shared Holdings
- IVV 0%·SPSM 1%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
499 of 503 positions (99.7% of the fund) are not held by SPSM. Showing the top 30 by weight.
Only in SPSM
600 of 604 positions (98.5% of the fund) are not held by IVV. Showing the top 30 by weight.
Sector Breakdown
| Sector | IVV | SPSM |
|---|---|---|
| Information Technology | 32.6% | 12.8% |
| Financials | 12.6% | 19.0% |
| Industrials | 9.0% | 17.4% |
| Consumer Discretionary | 9.8% | 13.9% |
| Health Care | 9.4% | 10.6% |
| Other Sectors | 26.3% | 25.1% |
| Unclassified | 0.0% | 0.9% |
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 (0% of IVV, 1% of SPSM).
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% |
| SPSM | +2.4% | +24.5% | +36.5% | +14.6% | +7.7% | +10.9% | 1.36% |
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 SPSM →
Shared Holdings(4)
The top 4 shared positions account for 93% of the overlap, led by CAG, EPAM and POOL.
Frequently Asked Questions
How much do IVV and SPSM overlap?
IVV and SPSM overlap by 0.1% of portfolio weight. They share 4 holdings (IVV holds 503 positions and SPSM holds 604), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IVV and SPSM?
The two portfolios are 0.1% 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 SPSM?
The largest positions held by both funds are CAG, EPAM, POOL and CPB. Together the top 4 shared positions account for 93% of the total overlap.
What does IVV own that SPSM doesn't?
499 positions (99.7% of IVV) are unique to IVV, led by NVDA, AAPL and MSFT. In the other direction, 600 positions (98.5% of SPSM) are unique to SPSM.