VIOG vs SPSM: Holdings Overlap
VIOGVanguard S&P Small-cap 600 Growth Index Fund
Vanguard · 342 holdings · $1.1B · as of 2026-05-31
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 67 days apart (VIOG: 2026-05-31, 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 VIOG and SPSM?
Vanguard S&P Small-cap 600 Growth Index Fund (VIOG, by Vanguard) holds 342 positions; State Street® SPDR® Portfolio S&P 600™ Small Cap ETF (SPSM, by State Street (SPDR)) holds 604. They have 326 holdings in common, and by portfolio weight the two funds are 58.9% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 58.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 326VIOG holds 342 · SPSM holds 604
- Weight in Shared Holdings
- VIOG 92%·SPSM 60%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 VIOG
16 of 342 positions (7.6% of the fund) are not held by SPSM.
Sector Breakdown
| Sector | VIOG | SPSM |
|---|---|---|
| Industrials | 21.8% | 17.4% |
| Financials | 14.2% | 19.0% |
| Information Technology | 18.4% | 12.8% |
| Health Care | 14.7% | 10.6% |
| Consumer Discretionary | 10.8% | 13.9% |
| Other Sectors | 19.9% | 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 VIOG, 1% of SPSM).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| VIOG | +1.1% | +25.9% | +33.8% | +15.2% | +6.8% | +11.2% | 0.75% |
| 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 VIOG vs SPSM →
Shared Holdings(326)
The top 10 shared positions account for 8% of the overlap, led by VSAT, CORT and EAT.
 VSATViaSat, Inc. COM | 1.30% | 0.61% | 0.61% |
|---|---|---|---|
 CORTCorcept Therapeutics Inc. COM | 0.77% | 0.56% | 0.56% |
 EATBrinker International, Inc. COM | 0.73% | 0.53% | 0.53% |
 FORMFormfactor Inc COM | 1.14% | 0.49% | 0.49% |
 GKOSGlaukos Corp. COM | 0.48% | 0.55% | 0.48% |
 PTGXProtagonist Therapeutics Inc COM | 0.69% | 0.48% | 0.48% |
 ESIElement Solutions Inc COM | 0.57% | 0.48% | 0.48% |
 ESEESCO Technologies Inc. COM | 0.89% | 0.46% | 0.46% |
 AGXArgan Inc COM | 1.10% | 0.45% | 0.45% |
 ALKSAlkermes PLC COM USD0.01 | 0.82% | 0.44% | 0.44% |
 RHPRyman Hospitality Properties Inc COM | 0.86% | 0.43% | 0.43% |
 AWIArmstrong World Industries, Inc. COM | 0.81% | 0.43% | 0.43% |
 ETSYEtsy Inc COM | 0.79% | 0.43% | 0.43% |
 FSSFederal Signal Corp. COM | 0.77% | 0.43% | 0.43% |
 ZWSZurn Elkay Water Solutions Corporation COM | 0.83% | 0.42% | 0.42% |
 QRVOQorvo Inc COM | 0.65% | 0.42% | 0.42% |
 RALRalliant Corp. COM | 0.43% | 0.40% | 0.40% |
 TRNOTerreno Realty Corporation COM | 0.57% | 0.40% | 0.40% |
 ECGEverus Construction Group Inc. COM | 0.90% | 0.39% | 0.39% |
 ACAArcosa Inc COM | 0.47% | 0.39% | 0.39% |
 NPOEnpro Inc COM | 0.77% | 0.39% | 0.39% |
 SNEXStoneX Group Inc COM | 0.94% | 0.39% | 0.39% |
 MSGSMadison Square Garden Sports Corp. CL A | 0.80% | 0.39% | 0.39% |
 PLXSPlexus Corp COM | 0.37% | 0.39% | 0.37% |
 LTHLife Time Group Holdings Inc COMMON STOCK | 0.43% | 0.37% | 0.37% |
Showing the top 250 of 326 shared holdings by overlap weight.
Frequently Asked Questions
How much do VIOG and SPSM overlap?
VIOG and SPSM overlap by 58.9% of portfolio weight. They share 326 holdings (VIOG holds 342 positions and SPSM holds 604), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VIOG and SPSM?
The two portfolios are 58.9% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of VIOG and SPSM?
The largest positions held by both funds are VSAT, CORT, EAT, FORM and GKOS. Together the top 10 shared positions account for 8% of the total overlap.
What does VIOG own that SPSM doesn't?
16 positions (7.6% of VIOG) are unique to VIOG, led by SANM, VIAV and SMTC. In the other direction, 278 positions (39.7% of SPSM) are unique to SPSM.