ETF comparison
SPSM vs VIOG
Both US Small Cap.
State Street SPDR Portfolio S&P 600 Small Cap ETF · Vanguard S&P Small-Cap 600 Growth Index Fund ETF Shares
Holdings overlap
332 positions appear in both funds. Buying equal dollars of SPSM and VIOG would leave roughly 61.3% of each dollar exposed to the same underlying securities.
Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
SPSM is 7 bps cheaper than VIOG. On a $100,000 position that's about $70/yr more in fees for VIOG.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with SPSM vs VIOG.
Top shared holdings
332 shared in total| # | Holding | In SPSM | In VIOG | Overlap |
|---|---|---|---|---|
| 1 | FormFactor Inc | 0.68% | 1.14% | 0.68% |
| 2 | Viasat Inc | 0.66% | 1.30% | 0.66% |
| 3 | Argan Inc | 0.60% | 1.10% | 0.60% |
| 4 | BrightSpring Health Services Inc | 0.60% | 0.97% | 0.60% |
| 5 | Element Solutions Inc | 0.59% | 0.57% | 0.57% |
| 6 | Krystal Biotech Inc | 0.53% | 0.94% | 0.53% |
| 7 | ESCO Technologies Inc | 0.49% | 0.89% | 0.49% |
| 8 | Alkermes PLC | 0.47% | 0.82% | 0.47% |
| 9 | Everus Construction Group Inc | 0.46% | 0.90% | 0.46% |
| 10 | StoneX Group Inc | 0.45% | 0.94% | 0.45% |
| 11 | Corcept Therapeutics Inc | 0.45% | 0.77% | 0.45% |
| 12 | Glaukos Corp | 0.45% | 0.48% | 0.45% |
Only in SPSM
272 total- Molina Healthcare Inc 0.65%
- Match Group Inc 0.48%
- Eastman Chemical Co 0.42%
- CarMax Inc 0.41%
- Jackson Financial Inc 0.39%
- Kulicke & Soffa Industries Inc 0.38%
- Pool Corp 0.37%
- LKQ Corp 0.36%
- Vishay Intertechnology Inc 0.36%
- Victoria's Secret & Co 0.36%
Only in VIOG
10 total- Sanmina Corp 1.68%
- Viavi Solutions Inc 1.33%
- Semtech Corp 1.17%
- ProAssurance Corp 0.07%
- Vital Farms Inc 0.04%
- Gogo Inc 0.04%
- Universal Health Realty Income Trust 0.04%
- Cytek Biosciences Inc 0.04%
- OmniAb Inc 0.00%
- OmniAb Inc 0.00%
Related comparisons
More comparisons with SPSM
- SPSM vs VIOV · Vanguard S&P Small-Cap 600 Value Index Fund ETF Shares 61.1%
- SPSM vs IJT · iShares S&P Small-Cap 600 Growth ETF 60.5%
- SPSM vs BBSC · JPMorgan BetaBuilders U.S. Small Cap Equity ETF 52.4%
- SPSM vs IWM · iShares Russell 2000 ETF 47.1%
- SPSM vs IWN · iShares Russell 2000 Value ETF 43.5%
- SPSM vs IWO · iShares Russell 2000 Growth ETF 40.6%
More comparisons with VIOG
- VIOG vs IJR · iShares Core S&P Small-Cap ETF 60.5%
- VIOG vs IWO · iShares Russell 2000 Growth ETF 36.9%
- VIOG vs BBSC · JPMorgan BetaBuilders U.S. Small Cap Equity ETF 34.8%
- VIOG vs IWM · iShares Russell 2000 ETF 30.7%
- VIOG vs VIOV · Vanguard S&P Small-Cap 600 Value Index Fund ETF Shares 28.1%
- VIOG vs VTWO · Vanguard Russell 2000 Index Fund ETF Shares 27.9%
Percentages are holdings overlap with the named fund.
Open SPSM or VIOG at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.