Data as of Oct 28, 2026.
BAI vs QTUM: Holdings Overlap & Returns
Over the year to Oct 28, 2026, BAI returned +19.6% to QTUM's +28.9%; 22% of their weight is in the same names.
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Net assets: $13.6bn on Oct 28, 2026 for iShares A.I. Innovation and Tech Active ETF, and $5.4bn on Oct 27, 2026 for Defiance Quantum ETF.
55% of BAI's weight is in S&P 500 companies and 45% is outside the index. Holdings as of Oct 27, 2026.
38% of QTUM's weight is in S&P 500 companies and 63% is outside the index. Holdings as of Oct 28, 2026.
Pair scorecard
QTUM costs 0.15 points a year less; their one-year returns differ by 9.3 points; BAI is 2.4 times larger.
Points (pts) are percentage points.
| Measure | BAI | QTUM |
|---|---|---|
| Return | ||
| Total return, 1 year | +19.6% | +28.9% |
| Drawdown | ||
| Below its all-time high | 19.6%, high on Jun 22, 2026 | 14.3%, high on Jun 2, 2026 |
| Against its benchmark | ||
| What it tracks | Artificial intelligence | Quantum computing |
| Its benchmark, total return, 1 year | +47.8% | |
| Against its benchmark, 1 year | behind by 28.2 pts | |
| Cost and size | ||
| Expense ratio | 0.55% | 0.40% |
| Net assets, as of Oct 27, 2026 | $13.2bn | $5.4bn |
| Holdings | ||
| Holdings in common | 22% | |
| Top ten holdings, share of the fund | 42% | 18% |
Holdings in common uses holdings dated Oct 27, 2026 and Oct 28, 2026. Method
Risk and return
Nov 1, 2024 to Oct 23, 2026 · 103 weekly returnsQTUM returned more: +123.4% to +67.0%. QTUM swung less: 29.1% to 34.4%. QTUM fell less at its worst: −21.9% to −33.3%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | BAI | QTUM | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +67.0% | +123.4% | QTUM | Price change plus distributions, reinvested. |
| Annualized | +29.5% | +50.1% | QTUM | Total return as a yearly rate. |
| Price return | +64.0% | +119.3% | QTUM | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 34.4% | 29.1% | QTUM | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 23.4% | 18.5% | QTUM | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −33.3% | −21.9% | QTUM | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | 0.81 | 1.41 | QTUM | Return above Treasury bills per unit of volatility. |
| Sortino | 1.19 | 2.21 | QTUM | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.89 | 2.29 | QTUM | Annualized return divided by the max drawdown. |
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, BAI and QTUM hold 22% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026 and Oct 28, 2026.
half
22% in common
Only in one fund ↓
Window by window
| Total return | vs its benchmark | |||
|---|---|---|---|---|
| Window | BAI | QTUM | BAI | QTUM |
| 3 months | +16.3% | +9.1% | −5.1 pts vs ARTY | not measured |
| 6 months | +5.1% | +11.2% | −17.8 pts vs ARTY | not measured |
| 1 year | +19.6% | +28.9% | −28.2 pts vs ARTY | not measured |
| 3 years | – | +229.7% | – | not measured |
| Since launchNot the same days: BAI Oct 2024 · QTUM Sep 2018 | +77.2% | +522.8% | −33.5 pts vs ARTY | not measured |
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Side by side
As of Oct 28, 2026. Source: ETFIQ.
22% of the two portfolios are the same securities at the same weight.
BAI and QTUM are built for the same job. How do they differ in cost, holdings and results?
- Theme. BAI covers Artificial intelligence and QTUM covers Quantum computing.
- Concentration. The top ten holdings are 42.5% of BAI and 18.5% of QTUM, a gap of 24.0 points.
- What each follows. BAI follows Artificial intelligence and QTUM follows Quantum computing.
Data as of Oct 28, 2026.
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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.
QTUM
By weight, 38% of QTUM'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 18% of the fund across 85 positions, as published by its issuer for Oct 28, 2026. Over the year to Oct 28, 2026 the fund returned +28.9% with distributions reinvested. It sits 14.3% below its all-time high of Jun 2, 2026.
Questions people ask
- Do BAI and QTUM hold the same stocks?
- By their latest filings, 22% 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, BAI against QTUM, data as of Oct 28, 2026. https://etfiq.com/compare/themes/bai-vs-qtum
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