Data as of Oct 28, 2026.
ARKK vs BAI: Holdings Overlap & Returns
Over the year to Oct 28, 2026, ARKK returned −3.5% to BAI's +19.6%; 16% of their weight is in the same names.
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Net assets: $6.6bn on Oct 27, 2026 for ARK Innovation ETF, and $13.6bn on Oct 28, 2026 for iShares A.I. Innovation and Tech Active ETF.
36% of ARKK's weight is in S&P 500 companies and 64% is outside the index. Holdings as of Oct 27, 2026.
55% of BAI's weight is in S&P 500 companies and 45% is outside the index. Holdings as of Oct 27, 2026.
Pair scorecard
BAI costs 0.20 points a year less; their one-year returns differ by 23.1 points; BAI is 2.0 times larger.
Points (pts) are percentage points.
| Measure | ARKK | BAI |
|---|---|---|
| Return | ||
| Total return, 1 year | −3.5% | +19.6% |
| Drawdown | ||
| Below its all-time high | 44.2%, high on Feb 12, 2021 | 19.6%, high on Jun 22, 2026 |
| Against its benchmark | ||
| What it tracks | Broad innovation and megatrends | Artificial intelligence |
| Against the S&P 500, 1 year | behind by 17.2 pts | |
| Its benchmark, total return, 1 year | +13.7% | +47.8% |
| Against its benchmark, 1 year | behind by 17.2 pts | behind by 28.2 pts |
| Cost and size | ||
| Expense ratio | 0.75% | 0.55% |
| Net assets, as of Oct 27, 2026 | $6.6bn | $13.2bn |
| Holdings | ||
| Holdings in common | 16% | |
| Top ten holdings, share of the fund | 49% | 42% |
Holdings in common uses holdings dated Oct 27, 2026. Method
Risk and return
Nov 1, 2024 to Oct 23, 2026 · 103 weekly returnsEach against its own benchmark: ARKK against VOO, Nov 7, 2014 to Oct 23, 2026; BAI against ARTY, Nov 1, 2024 to Oct 23, 2026.
ARKK returned more: +75.8% to +67.0%. BAI swung less: 34.4% to 39.6%. BAI fell less at its worst: −33.3% to −37.4%.
Full scorecard
19 measures, with how each is measured Open ↓
| Measure | ARKK | BAI | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +75.8% | +67.0% | ARKK | Price change plus distributions, reinvested. |
| Annualized | +33.0% | +29.5% | ARKK | Total return as a yearly rate. |
| Price return | +75.8% | +64.0% | ARKK | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 39.6% | 34.4% | BAI | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 24.3% | 23.4% | BAI (slight) | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −37.4% | −33.3% | BAI | Deepest fall from a high to the low after it. |
| Upside capture | 236.0% | 91.9% | Share of its benchmark's rise caught in the weeks it rose. | |
| Downside capture | 139.9% | 102.9% | Share of its benchmark's fall taken in the weeks it fell. Lower is better. | |
| Beta | 1.68 | 0.98 | Not an edge | How far it moves for each 1% its benchmark moves. |
| R squared | 0.55 | 0.89 | Not an edge | Share of its weekly moves its benchmark explains. |
| Risk-adjusted | ||||
| Sharpe | 0.81 | 0.81 | Tie | Return above Treasury bills per unit of volatility. |
| Sortino | 1.33 | 1.19 | ARKK | Return above Treasury bills per unit of downside deviation. |
| Treynor | 0.103 | 0.283 | Return above Treasury bills per unit of beta. | |
| Calmar | 0.88 | 0.89 | Tie | Annualized return divided by the max drawdown. |
| Against the benchmark | ||||
| Benchmark | VOO | ARTY | The ETF each fund is measured against. | |
| Alpha | −2.7% a year | −9.4% a year | Not significant | Yearly return beyond what its beta to the benchmark predicts. |
| Alpha t-stat | −0.37 | −1.15 | Not an edge | How sure the alpha is. Below 2, it could be chance. |
| Alpha range | −17.0% to +11.6% | −25.5% to +6.8% | Includes zero | The 95% range for the yearly alpha. |
| Information ratio | 0.20 | −0.88 | Return against its benchmark per unit of tracking error. | |
| Tracking error | 27.5% | 11.3% | Not an edge | How far weekly returns stray from the benchmark, annualized. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 103 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, ARKK and BAI hold 16% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
16% in common
Only in one fund ↓
Window by window
| Total return | vs its benchmark | |||
|---|---|---|---|---|
| Window | ARKK | BAI | ARKK | BAI |
| 3 months | +22.0% | +16.3% | +15.9 pts vs VOO | −5.1 pts vs ARTY |
| 6 months | +17.1% | +5.1% | +8.0 pts vs VOO | −17.8 pts vs ARTY |
| 1 year | −3.5% | +19.6% | −17.2 pts vs VOO | −28.2 pts vs ARTY |
| 3 years | +152.6% | – | +57.1 pts vs VOO | – |
| Since launchNot the same days: ARKK Oct 2014 · BAI Oct 2024 | +367.2% | +77.2% | −3.5 pts vs VOO | −33.5 pts vs ARTY |
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Side by side
As of Oct 28, 2026. Source: ETFIQ.
16% of the two portfolios are the same securities at the same weight.
ARKK and BAI are built for the same job. How do they differ in cost, holdings and results?
- Theme. ARKK covers Broad innovation and megatrends and BAI covers Artificial intelligence.
- What each follows. ARKK follows Broad innovation and megatrends and BAI follows Artificial intelligence.
- Holdings in common. 16% of the weight is in the same securities (holdings dated Oct 27, 2026).
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.
BAI
By weight, 55% of BAI's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 76%. The top ten holdings are 42% of the fund across 49 positions, as published by its issuer for Oct 27, 2026. Over the year to Oct 28, 2026 the fund returned +19.6% with distributions reinvested against +47.8% for its benchmark, the Morningstar Global Artificial Intelligence Select Index, so a holder was behind by 28.2 pts. It sits 19.6% below its all-time high of Jun 22, 2026.
Questions people ask
- Do ARKK and BAI hold the same stocks?
- By their latest filings, 16% 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 BAI, data as of Oct 28, 2026. https://etfiq.com/compare/themes/arkk-vs-bai
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