ETF comparison
VBK vs VIOO
Both US Small Cap.
Vanguard Morningstar Small-Cap Growth ETF · Vanguard S&P Small-Cap 600 Index Fund ETF Shares
Holdings overlap
160 positions appear in both funds. Buying equal dollars of VBK and VIOO would leave roughly 17.0% 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
VBK is 2 bps cheaper than VIOO. On a $100,000 position that's about $20/yr more in fees for VIOO.
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 VBK vs VIOO.
Top shared holdings
160 shared in total| # | Holding | In VBK | In VIOO | Overlap |
|---|---|---|---|---|
| 1 | Semtech Corp | 0.42% | 0.83% | 0.42% |
| 2 | FormFactor Inc | 0.35% | 0.57% | 0.35% |
| 3 | BrightSpring Health Services Inc | 0.32% | 0.48% | 0.32% |
| 4 | MaxLinear Inc | 0.31% | 0.44% | 0.31% |
| 5 | Argan Inc | 0.30% | 0.54% | 0.30% |
| 6 | Krystal Biotech Inc | 0.29% | 0.47% | 0.29% |
| 7 | ESCO Technologies Inc | 0.25% | 0.44% | 0.25% |
| 8 | Match Group Inc | 0.25% | 0.50% | 0.25% |
| 9 | Alkermes PLC | 0.25% | 0.35% | 0.25% |
| 10 | Everus Construction Group Inc | 0.24% | 0.45% | 0.24% |
| 11 | StoneX Group Inc | 0.24% | 0.47% | 0.24% |
| 12 | Powell Industries Inc | 0.23% | 0.47% | 0.23% |
Only in VBK
383 total- Credo Technology Group Holding Ltd 1.27%
- REVOLUTION Medicines Inc 1.06%
- Astera Labs Inc 1.05%
- Natera Inc 1.04%
- Twilio Inc 0.88%
- Casey's General Stores Inc 0.83%
- Carpenter Technology Corp 0.82%
- Curtiss-Wright Corp 0.79%
- FTAI Aviation Ltd 0.78%
- nVent Electric PLC 0.77%
Only in VIOO
443 total- Viasat Inc 0.64%
- Element Solutions Inc 0.57%
- Enphase Energy Inc 0.53%
- Molina Healthcare Inc 0.53%
- Qorvo Inc 0.51%
- Eastman Chemical Co 0.51%
- Jackson Financial Inc 0.43%
- Plexus Corp 0.42%
- Ralliant Corp 0.41%
- Zurn Elkay Water Solutions Corp 0.41%
Related comparisons
More comparisons with VBK
- VBK vs SPSM · State Street SPDR Portfolio S&P 600 Small Cap ETF 16.5%
- VBK vs IJR · iShares Core S&P Small-Cap ETF 16.4%
- VBK vs VIOG · Vanguard S&P Small-Cap 600 Growth Index Fund ETF Shares 15.4%
- VBK vs IJT · iShares S&P Small-Cap 600 Growth ETF 14.6%
- VBK vs VIOV · Vanguard S&P Small-Cap 600 Value Index Fund ETF Shares 7.6%
- VBK vs IWN · iShares Russell 2000 Value ETF 7.5%
More comparisons with VIOO
- VIOO vs CALF · Pacer US Small Cap Cash Cows 100 ETF 10.8%
- VIOO vs ITOT · iShares Core S&P Total U.S. Stock Market ETF 2.5%
- VIOO vs VTI · Vanguard Morningstar Total Stock Market ETF 2.5%
- VIOO vs SCHB · Schwab U.S. Broad Market ETF 2.3%
- VIOO vs VYM · Vanguard High Dividend Yield Index Fund ETF Shares 1.9%
- VIOO vs SCHD · Schwab U.S. Dividend Equity ETF 1.2%
Percentages are holdings overlap with the named fund.
Open VBK or VIOO 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.