MDYG
State Street SPDR S&P 400 Mid Cap Growth ETF
SMB
Adj. R2
0.909
Rel. Sharpe
0.890
Mkt beta
1.03
AUM
US$2.6B
MER
0.15%
Valuation
170
ETF comparison
Verified factor-similar pair
MDYG vs SMMD
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
85
Verified similar
The score combines exposure-level distance, factor-vector shape, market-beta closeness, and a small backtested relative-Sharpe term.
Quick Read
- MDYG has the higher backtested relative Sharpe (0.890 vs 0.773).
- MDYG has the lower published fee (0.15% vs 0.23%).
- SMMD is cheaper on dividend valuation (135 vs 170, where 100 is each fund's historical median).
- SMMD has the stronger regression fit (adjusted R-squared 0.975 vs 0.909).
These are screening signals, not a complete review of portfolio construction, turnover, taxes, or trading quality.
SMMD
iShares Russell 2500 ETF
SMB
Adj. R2
0.975
Rel. Sharpe
0.773
Mkt beta
1.03
AUM
US$2.9B
MER
0.23%
Valuation
135
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 -0.15
HML
diff -0.21
RMW
diff +0.18
CMA
diff +0.01
UMD
diff -0.00
Why This Pair Matches
Exposure level
82
Exposure shape
94
Mkt beta diff
0.00
Rel. Sharpe diff
0.117
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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