FFSM
Fidelity Fundamental Small-Mid Cap ETF
SMB
Adj. R2
0.916
Rel. Sharpe
1.190
Mkt beta
1.05
AUM
US$1.2B
MER
0.43%
Valuation
133
ETF comparison
Verified factor-similar pair
FFSM vs PSC
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
88
Verified similar
The score combines exposure-level distance, factor-vector shape, market-beta closeness, and a small backtested relative-Sharpe term.
Quick Read
- FFSM has the higher backtested relative Sharpe (1.190 vs 0.970).
- PSC has the lower published fee (0.38% vs 0.43%).
- FFSM is cheaper on dividend valuation (133 vs 237, where 100 is each fund's historical median).
- PSC has the stronger regression fit (adjusted R-squared 0.952 vs 0.916).
These are screening signals, not a complete review of portfolio construction, turnover, taxes, or trading quality.
PSC
Principal U.S. Small-Cap ETF
SMB
Adj. R2
0.952
Rel. Sharpe
0.970
Mkt beta
1.01
AUM
US$1.9B
MER
0.38%
Valuation
237
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 -0.12
HML
diff -0.05
RMW
diff +0.10
CMA
diff +0.07
UMD
diff +0.05
Why This Pair Matches
Exposure level
86
Exposure shape
99
Mkt beta diff
0.04
Rel. Sharpe diff
0.220
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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