QuantLogix

SMH vs SOXX — ETF comparison

Two funds head-to-head: live engine reads, trailing performance, and holdings overlap from SEC filings. An engine-read comparison — not a recommendation.

engine lead
SMH
VanEck Semiconductor ETF
70/100
STRONG BUY
$569.77 · -4.65% · Technology
Full ETF page →
VS
SOXX
iShares Semiconductor ETF
66/100
BUY
$531.39 · -5.72% · Technology
Full ETF page →
Factor by factor — SMH (left) vs SOXX (right)
64
Technical
64
54
Momentum
55
50
Fundamental
50
26
Options
54
78
Microstructure
65
Trailing performance — SMH (left) vs SOXX (right)
+45.7%
6-month return
+57.6%
+100.9%
1-year return
+125.2%
+363.4%
5-year return
+277.2%
Holdings overlap — 53.6% by weight · 15 shared positions
19.64%
7.58%
4.68%
7.04%
4.61%
4.80%
4.60%
4.73%
4.59%
4.51%
4.99%
4.38%
4.34%
4.88%
4.23%
4.98%
Largest SMH-only positions: SNPS 2.50% · CDNS 2.43%
Largest SOXX-only positions: ENTG 1.37% · RMBS 1.09% · MTSI 0.79% · ASX 0.58%

From each fund's SEC N-PORT filing (2026-05-28 / 2026-07-13), computed on the 17 of 25 and 19 of 30 equity positions matched to the QuantLogix stock universe — a lower bound, never an estimate.

QuantLogix's 5-factor engine currently reads VanEck Semiconductor ETF (SMH) at 70/100 (strong buy) and iShares Semiconductor ETF (SOXX) at 66/100 (buy). SMH carries the stronger composite read by 4 points, led by microstructure at 78/100. SOXX's strongest leg is microstructure at 65/100. On trailing price performance, SOXX leads over the last year (+125.2% vs +100.9% for SMH). By filed portfolio weights, at least 53.6% of the two funds overlaps across 15 shared positions. Signals recompute throughout the trading day — the balance can shift with the tape.

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Educational market analysis, not investment advice. QuantLogix does not provide personalized recommendations. SMH ETF page · SOXX ETF page · ETF rankings · Equities Network · Verified track record