SPSM
State Street SPDR Portfolio S&P 600 Small Cap ETF
SMB
Adj. R2
0.978
Rel. Sharpe
1.027
Mkt beta
0.98
AUM
US$14.7B
MER
0.03%
Valuation
117
ETF comparison
Verified factor-similar pair
SPSM vs VIOO
These two ETFs meet the same FF6 US comparison criteria: US-listed equity ETFs, the same USD model basis, at least one material non-market factor, and 100% overlap in statistically significant material factor exposure.
SMB
Similarity score
96
Near substitute
The score combines exposure-level distance, factor-vector shape, market-beta closeness, and a small backtested relative-Sharpe term.
Quick Read
- VIOO has the higher backtested relative Sharpe (1.191 vs 1.027).
- SPSM has the lower published fee (0.03% vs 0.07%).
- VIOO is cheaper on dividend valuation (100 vs 117, where 100 is each fund's historical median).
These are screening signals, not a complete review of portfolio construction, turnover, taxes, or trading quality.
VIOO
Vanguard S&P Small-Cap 600 ETF
SMB
Adj. R2
0.979
Rel. Sharpe
1.191
Mkt beta
0.98
AUM
US$3.6B
MER
0.07%
Valuation
100
Factor Exposure Match
Blue bars compare raw factor beta magnitude. Green bars compare absolute t-stat strength. Dim bars indicate the t-stat is below 1.96.
SMB
diff +0.00
HML
diff -0.03
RMW
diff -0.05
CMA
diff -0.01
UMD
diff +0.00
Why This Pair Matches
Exposure level
96
Exposure shape
100
Mkt beta diff
0.00
Rel. Sharpe diff
0.164
This comparison focuses on measured factor exposure. It does not compare holdings methodology, turnover, tax handling, or issuer process. Backtested relative Sharpe is a secondary signal rather than a stand-alone forecast. See methodology.
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