ETF comparison
SPY vs VB
US Large Cap vs US Small Cap.
State Street SPDR S&P 500 ETF Trust · Vanguard Morningstar Small-Cap ETF
Holdings overlap
128 positions appear in both funds. Buying equal dollars of SPY and VB would leave roughly 3.0% 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
VB is 6 bps cheaper than SPY. On a $100,000 position that's about $64/yr more in fees for SPY.
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 SPY vs VB.
Top shared holdings
128 shared in total| # | Holding | In SPY | In VB | Overlap |
|---|---|---|---|---|
| 1 | MODERNA INC | 0.11% | 0.30% | 0.11% |
| 2 | EVERPURE INC A | 0.07% | 0.30% | 0.07% |
| 3 | FLEX LTD | 0.06% | 0.36% | 0.06% |
| 4 | ILLUMINA INC | 0.06% | 0.31% | 0.06% |
| 5 | EMCOR GROUP INC | 0.05% | 0.45% | 0.05% |
| 6 | JABIL INC | 0.05% | 0.49% | 0.05% |
| 7 | EQT CORP | 0.05% | 0.20% | 0.05% |
| 8 | STEEL DYNAMICS INC | 0.05% | 0.19% | 0.05% |
| 9 | CENTENE CORP | 0.05% | 0.19% | 0.05% |
| 10 | QNITY ELECTRONICS INC | 0.04% | 0.21% | 0.04% |
| 11 | WILLIAMS SONOMA INC | 0.04% | 0.33% | 0.04% |
| 12 | ATMOS ENERGY CORP | 0.04% | 0.35% | 0.04% |
Only in SPY
377 total- NVIDIA CORP 8.50%
- APPLE INC 7.32%
- MICROSOFT CORP 5.77%
- AMAZON.COM INC 3.71%
- ALPHABET INC CL A 3.03%
- BROADCOM INC 2.54%
- ALPHABET INC CL C 2.43%
- META PLATFORMS INC CLASS A 2.41%
- MICRON TECHNOLOGY INC 1.82%
- TESLA INC 1.57%
Only in VB
1,181 total- Credo Technology Group Holding Ltd 0.55%
- REVOLUTION Medicines Inc 0.46%
- Astera Labs Inc 0.45%
- Natera Inc 0.45%
- Twilio Inc 0.38%
- MKS Instruments Inc 0.37%
- Carpenter Technology Corp 0.35%
- Curtiss-Wright Corp 0.34%
- FTAI Aviation Ltd 0.34%
- Entegris Inc 0.33%
Related comparisons
More comparisons with SPY
- SPY vs VBR · Vanguard Morningstar Small-Cap Value ETF 2.6%
- SPY vs PEY · Invesco High Yield Equity Dividend Achievers ETF 2.4%
- SPY vs SCHM · Schwab U.S. Mid-Cap ETF 2.4%
- SPY vs FNDA · Schwab Fundamental U.S. Small Company ETF 2.1%
- SPY vs BBMC · JPMorgan BetaBuilders U.S. Mid Cap Equity ETF 1.4%
- SPY vs SMLF · iShares U.S. Small-Cap Equity Factor ETF 1.0%
More comparisons with VB
- VB vs USMV · iShares MSCI USA Min Vol Factor ETF 2.9%
- VB vs QUAL · iShares MSCI USA Quality Factor ETF 2.9%
- VB vs SCHD · Schwab U.S. Dividend Equity ETF 2.8%
- VB vs SPLV · Invesco S&P 500 Low Volatility ETF 2.8%
- VB vs NOBL · ProShares S&P 500 Dividend Aristocrats ETF 2.8%
- VB vs CGGR · Capital Group Growth ETF 2.7%
Percentages are holdings overlap with the named fund.
Open SPY or VB 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.