ETF comparison
SMLF vs SPY
Multi-Factor vs US Large Cap.
iShares U.S. Small-Cap Equity Factor ETF · State Street SPDR S&P 500 ETF Trust
Holdings overlap
40 positions appear in both funds. Buying equal dollars of SMLF and SPY would leave roughly 1.0% 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
SPY is 6 bps cheaper than SMLF. On a $100,000 position that's about $56/yr more in fees for SMLF.
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 SMLF vs SPY.
Top shared holdings
40 shared in total| # | Holding | In SMLF | In SPY | Overlap |
|---|---|---|---|---|
| 1 | Moderna, Inc. | 0.37% | 0.11% | 0.11% |
| 2 | Everpure, Inc. | 0.40% | 0.07% | 0.07% |
| 3 | Interactive Brokers Group, Inc. | 0.83% | 0.06% | 0.06% |
| 4 | EMCOR Group, Inc. | 0.95% | 0.05% | 0.05% |
| 5 | Jabil, Inc. | 0.75% | 0.05% | 0.05% |
| 6 | Williams-Sonoma, Inc. | 0.61% | 0.04% | 0.04% |
| 7 | Tapestry, Inc. | 0.66% | 0.04% | 0.04% |
| 8 | Casey's General Stores, Inc. | 0.32% | 0.03% | 0.03% |
| 9 | Reddit, Inc. | 0.30% | 0.03% | 0.03% |
| 10 | Expand Energy Corp. | 0.31% | 0.03% | 0.03% |
| 11 | Nordson Corp. | 0.14% | 0.03% | 0.03% |
| 12 | DuPont de Nemours, Inc. | 0.33% | 0.03% | 0.03% |
Only in SMLF
852 total- nVent Electric plc 0.80%
- Flex Ltd. 0.78%
- Astera Labs, Inc. 0.70%
- Natera, Inc. 0.62%
- Mueller Industries, Inc. 0.59%
- Reliance, Inc. 0.56%
- Popular, Inc. 0.54%
- Tenet Healthcare Corp. 0.52%
- Credo Technology Group Holding Ltd. 0.51%
- Guardant Health, Inc. 0.49%
Only in SPY
465 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%
Related comparisons
More comparisons with SMLF
- SMLF vs VUG · Vanguard Morningstar Growth ETF 0.5%
- SMLF vs QQQ · Invesco QQQ Trust 0.4%
- SMLF vs VTV · Vanguard Morningstar Value ETF 0.1%
- SMLF vs INTF · iShares International Equity Factor ETF 0.0%
- SMLF vs VB · Vanguard Morningstar Small-Cap ETF 49.8%
- SMLF vs IJH · iShares Core S&P Mid-Cap ETF 38.0%
More comparisons with SPY
- SPY vs DON · WisdomTree U.S. MidCap Dividend Fund 1.0%
- SPY vs DFAS · U.S. Small Cap Portfolio-ETF Class Shares 0.9%
- SPY vs VBK · Vanguard Morningstar Small-Cap Growth ETF 0.8%
- SPY vs DFAT · U.S. Targeted Value Portfolio-ETF Class Shares 0.7%
- SPY vs SCHA · Schwab U.S. Small-Cap ETF 0.5%
- SPY vs CALF · Pacer US Small Cap Cash Cows 100 ETF 0.4%
Percentages are holdings overlap with the named fund.
Open SMLF or SPY 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.