SPY vs VB: Holdings Overlap
SPYState Street® SPDR® S&P 500® ETF Trust
State Street (SPDR) · 504 holdings · $812.0B · as of 2026-08-06
VBVanguard Small-cap Index Fund
Vanguard · 1312 holdings · $82.5B · as of 2026-03-31
Holdings snapshots are 128 days apart (SPY: 2026-08-06, VB: 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 SPY and VB?
State Street® SPDR® S&P 500® ETF Trust (SPY, by State Street (SPDR)) holds 504 positions; Vanguard Small-cap Index Fund (VB, by Vanguard) holds 1312. They have 118 holdings in common, and by portfolio weight the two funds are 3.1% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 3.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 118SPY holds 504 · VB holds 1312
- Weight in Shared Holdings
- SPY 3%·VB 22%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 SPY
386 of 504 positions (96.8% of the fund) are not held by VB. Showing the top 30 by weight.
Sector Breakdown
| Sector | SPY | VB |
|---|---|---|
| Information Technology | 37.6% | 13.8% |
| Industrials | 8.8% | 21.2% |
| Financials | 12.3% | 13.4% |
| Health Care | 8.9% | 11.6% |
| Consumer Discretionary | 9.3% | 10.5% |
| Other Sectors | 23.1% | 28.5% |
| Unclassified | 0.0% | 0.7% |
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 SPY, 1% of VB).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| SPY | +3.4% | +14.0% | +23.7% | +21.2% | +13.3% | +15.3% | 0.97% |
| VB | +2.5% | +19.5% | +29.1% | +15.9% | +8.1% | +11.3% | 1.18% |
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 SPY vs VB →
Shared Holdings(118)
The top 10 shared positions account for 23% of the overlap, led by COHR, LITE and FIX.
 COHRCoherent Corp COM | 0.10% | 0.31% | 0.10% |
|---|---|---|---|
 LITELumentum Holdings Inc. COM | 0.10% | 0.35% | 0.10% |
 FIXComfort Systems USA Inc. COM | 0.09% | 0.34% | 0.09% |
 CIENCiena Corporation COM NEW | 0.09% | 0.38% | 0.09% |
 FLEXFlex Ltd. COM USD0.01 | 0.07% | 0.34% | 0.07% |
 JBLJabil Inc COM | 0.05% | 0.37% | 0.05% |
 EMEEmcor Group Inc COM | 0.05% | 0.46% | 0.05% |
 STLDSteel Dynamics, Inc. COM | 0.05% | 0.17% | 0.05% |
 TPRTapestry Inc COM | 0.05% | 0.40% | 0.05% |
 EQTEQT Corporation COM | 0.05% | 0.28% | 0.05% |
 CASYCasey'S General Stores Inc. COM | 0.05% | 0.38% | 0.05% |
 CNCCentene Corp. COM | 0.05% | 0.11% | 0.05% |
 WSMWilliams-Sonoma Inc. COM | 0.04% | 0.30% | 0.04% |
 ATOAtmos Energy Corp. COM | 0.04% | 0.43% | 0.04% |
 QQnity Electronics Inc. COMMON STOCK | 0.04% | 0.17% | 0.04% |
 HUBBHubbell Incorporated COM | 0.04% | 0.18% | 0.04% |
 FSLRFirst Solar Inc COM | 0.04% | 0.14% | 0.04% |
 NRGNRG Energy, Inc. COM NEW | 0.04% | 0.43% | 0.04% |
 SWSmurfit WestRock plc COM USD0.001 | 0.04% | 0.29% | 0.04% |
 OMCOmnicom Group Inc COM | 0.04% | 0.33% | 0.04% |
 FFIVF5 Inc COM | 0.04% | 0.23% | 0.04% |
 EXEExpand Energy Corp. COM | 0.03% | 0.37% | 0.03% |
 DOWDow Inc COM | 0.03% | 0.21% | 0.03% |
 NINiSource Inc. COM | 0.03% | 0.16% | 0.03% |
 TPLTexas Pacific Land Corporation COM | 0.03% | 0.19% | 0.03% |
Frequently Asked Questions
How much do SPY and VB overlap?
SPY and VB overlap by 3.1% of portfolio weight. They share 118 holdings (SPY holds 504 positions and VB holds 1312), based on each fund's latest SEC-reported holdings.
Is it redundant to own both SPY and VB?
The two portfolios are 3.1% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of SPY and VB?
The largest positions held by both funds are COHR, LITE, FIX, CIEN and FLEX. Together the top 10 shared positions account for 23% of the total overlap.
What does SPY own that VB doesn't?
386 positions (96.8% of SPY) are unique to SPY, led by NVDA, AAPL and MSFT. In the other direction, 1194 positions (78.0% of VB) are unique to VB.