Data as of Oct 28, 2026.
ARKK vs SOXX: Holdings Overlap & Returns
Over the year to Oct 28, 2026, ARKK returned −3.5% to SOXX's +72.0%; 9% of their weight is in the same names.
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Net assets on Oct 27, 2026: $6.6bn for ARK Innovation ETF and $48.3bn for iShares Semiconductor ETF.
36% of ARKK's weight is in S&P 500 companies and 64% is outside the index. Holdings as of Oct 27, 2026.
74% of SOXX's weight is in S&P 500 companies and 26% is outside the index. Holdings as of Oct 27, 2026.
Pair scorecard
SOXX costs 0.42 points a year less; their one-year returns differ by 75.5 points; SOXX is 7.3 times larger.
Points (pts) are percentage points.
| Measure | ARKK | SOXX |
|---|---|---|
| Return | ||
| Total return, 1 year | −3.5% | +72.0% |
| Drawdown | ||
| Below its all-time high | 44.2%, high on Feb 12, 2021 | 20.3%, high on Jun 22, 2026 |
| Against its benchmark | ||
| What it tracks | Broad innovation and megatrends | Semiconductors |
| Against the S&P 500, 1 year | behind by 17.2 pts | |
| Its benchmark, total return, 1 year | +13.7% | +13.3% |
| Against its benchmark, 1 year | behind by 17.2 pts | ahead by 58.7 pts |
| Cost and size | ||
| Expense ratio | 0.75% | 0.33% |
| Net assets, as of Oct 27, 2026 | $6.6bn | $48.3bn |
| Holdings | ||
| Holdings in common | 9% | |
Holdings in common uses holdings dated Oct 27, 2026. Method
Risk and return
Nov 7, 2014 to Oct 23, 2026 · 624 weekly returnsEach against its own benchmark: ARKK against VOO, Nov 7, 2014 to Oct 23, 2026; SOXX against PBUS, Sep 29, 2017 to Oct 23, 2026.
SOXX returned more: +1,775.4% to +350.6%. SOXX swung less: 29.7% to 37.4%. SOXX fell less at its worst: −44.4% to −80.1%.
Full scorecard
19 measures, with how each is measured Open ↓
| Measure | ARKK | SOXX | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +350.6% | +1,775.4% | SOXX | Price change plus distributions, reinvested. |
| Annualized | +13.4% | +27.7% | SOXX | Total return as a yearly rate. |
| Price return | +307.5% | +1,553.5% | SOXX | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 37.4% | 29.7% | SOXX | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 24.8% | 19.6% | SOXX | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −80.1% | −44.4% | SOXX | Deepest fall from a high to the low after it. |
| Upside capture | 236.0% | 212.4% | Share of its benchmark's rise caught in the weeks it rose. | |
| Downside capture | 139.9% | 123.4% | Share of its benchmark's fall taken in the weeks it fell. Lower is better. | |
| Beta | 1.68 | 1.38 | Not an edge | How far it moves for each 1% its benchmark moves. |
| R squared | 0.55 | 0.59 | Not an edge | Share of its weekly moves its benchmark explains. |
| Risk-adjusted | ||||
| Sharpe | 0.46 | 0.90 | SOXX | Return above Treasury bills per unit of volatility. |
| Sortino | 0.70 | 1.37 | SOXX | Return above Treasury bills per unit of downside deviation. |
| Treynor | 0.103 | 0.200 | Return above Treasury bills per unit of beta. | |
| Calmar | 0.17 | 0.62 | SOXX | Annualized return divided by the max drawdown. |
| Against the benchmark | ||||
| Benchmark | VOO | PBUS | The ETF each fund is measured against. | |
| Alpha | −2.7% a year | +10.2% a year | Not significant | Yearly return beyond what its beta to the benchmark predicts. |
| Alpha t-stat | −0.37 | 1.48 | Not an edge | How sure the alpha is. Below 2, it could be chance. |
| Alpha range | −17.0% to +11.6% | −3.3% to +23.7% | Includes zero | The 95% range for the yearly alpha. |
| Information ratio | 0.20 | 0.69 | Return against its benchmark per unit of tracking error. | |
| Tracking error | 27.5% | 21.7% | Not an edge | How far weekly returns stray from the benchmark, annualized. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 624 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, ARKK and SOXX hold 9% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
9% in common
Only in one fund ↓
Window by window
| Total return | vs its benchmark | |||
|---|---|---|---|---|
| Window | ARKK | SOXX | ARKK | SOXX |
| 3 months | +22.0% | +12.3% | +15.9 pts vs VOO | +6.3 pts vs PBUS |
| 6 months | +17.1% | +16.1% | +8.0 pts vs VOO | +7.0 pts vs PBUS |
| 1 year | −3.5% | +72.0% | −17.2 pts vs VOO | +58.7 pts vs PBUS |
| 3 years | +152.6% | +258.4% | +57.1 pts vs VOO | +162.6 pts vs PBUS |
| Since launchNot the same days: ARKK Oct 2014 · SOXX Jul 2001 | +367.2% | +2,543.8% | −3.5 pts vs VOO | not measured |
Side by side
As of Oct 28, 2026. Source: ETFIQ.
9% of the two portfolios are the same securities at the same weight.
ARKK and SOXX are built for the same job. How do they differ in cost, holdings and results?
- Theme. ARKK covers Broad innovation and megatrends and SOXX covers Semiconductors.
- Concentration. The top ten holdings are 49.4% of ARKK and 62.4% of SOXX, a gap of 13.0 points.
- What each follows. ARKK follows Broad innovation and megatrends and SOXX follows Semiconductors.
Data as of Oct 28, 2026.
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ARKK
By weight, 36% of ARKK's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 85%. The top ten holdings are 49% of the fund across 46 positions, as published by its issuer for Oct 27, 2026. Over the year to Oct 28, 2026 the fund returned −3.5% with distributions reinvested against +13.7% for its benchmark, the S&P 500 Index, so a holder was behind by 17.2 pts. It sits 44.2% below its all-time high of Feb 12, 2021.
SOXX
By weight, 74% of SOXX's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 82%. The top ten holdings are 62% of the fund across 31 positions, as published by its issuer for Oct 27, 2026. Over the year to Oct 28, 2026 the fund returned +72.0% with distributions reinvested against +13.3% for its benchmark, the MSCI USA Index, so a holder was ahead by 58.7 pts. It sits 20.3% below its all-time high of Jun 22, 2026.
Questions people ask
- Do ARKK and SOXX hold the same stocks?
- By their latest filings, 9% of their books are the same securities at the same weight. Overlap is the sum of the smaller weight of every security they share.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
Every number is an ETFIQ calculation with distributions reinvested.
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ETFIQ, ARKK against SOXX, data as of Oct 28, 2026. https://etfiq.com/compare/themes/arkk-vs-soxx
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