Data as of Nov 4, 2026.
ARKK vs BULD: Holdings Overlap & Returns
Over the year to Nov 4, 2026, ARKK returned −3.7% to BULD's +23.8%; 1% of their weight is in the same names.
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Net assets: $5.9bn on Nov 2, 2026 for ARK Innovation ETF, and $8.6m on Nov 3, 2026 for Pacer BlueStar Engineering the Future ETF.
36% of ARKK's weight is in S&P 500 companies and 64% is outside the index. Holdings as of Nov 2, 2026.
36% of BULD's weight is in S&P 500 companies and 64% is outside the index. Holdings as of Jul 31, 2026.
Pair scorecard
BULD costs 0.26 points a year less; their one-year returns differ by 27.5 points; ARKK is far larger, $5.9bn against $8.6m.
Points (pts) are percentage points.
| Measure | ARKK | BULD |
|---|---|---|
| Return | ||
| Total return, 1 year | −3.7% | +23.8% |
| Drawdown | ||
| Below its all-time high | 48.0%, high on Feb 12, 2021 | 14.4%, high on Jun 30, 2026 |
| Against its benchmark | ||
| What it tracks | Broad innovation and megatrends | Broad innovation and megatrends |
| Against the S&P 500, 1 year | behind by 18.5 pts | |
| Its benchmark, total return, 1 year | +14.8% | |
| Against its benchmark, 1 year | behind by 18.5 pts | |
| Cost and size | ||
| Expense ratio | 0.75% | 0.49% |
| Net assets, as of Nov 2, 2026 | $5.9bn | $8.6m |
| Holdings | ||
| Holdings in common | 1% | |
Risk and return
May 13, 2022 to Oct 30, 2026 · 233 weekly returnsFrom May 2022 to Oct 2026, ARKK returned slightly more: +86.7% to +78.5%. BULD swung less: 27.6% to 42.8%. BULD fell less at its worst: −26.5% to −40.5%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | ARKK | BULD | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +86.7% | +78.5% | ARKK (slight) | Price change plus distributions, reinvested. |
| Annualized | +15.0% | +13.8% | ARKK (slight) | Total return as a yearly rate. |
| Price return | +85.2% | +75.4% | ARKK | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 42.8% | 27.6% | BULD | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 27.4% | 18.4% | BULD | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −40.5% | −26.5% | BULD | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | 0.43 | 0.45 | BULD (slight) | Return above Treasury bills per unit of volatility. |
| Sortino | 0.68 | 0.67 | Tie | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.37 | 0.52 | BULD | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 233 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, ARKK and BULD hold 1% of their money in the same securities at the same weight. Holdings dated Jul 31, 2026 and Nov 2, 2026.
half
1% in common
Only in one fund ↓
Window by window
| Total return | vs its benchmark | |||
|---|---|---|---|---|
| Window | ARKK | BULD | ARKK | BULD |
| 3 months | +5.5% | −9.7% | +5.6 pts vs VOO | not measured |
| 6 months | +1.0% | +0.8% | −4.0 pts vs VOO | not measured |
| 1 year | −3.7% | +23.8% | −18.5 pts vs VOO | not measured |
| 3 years | +98.7% | +76.7% | +15.4 pts vs VOO | not measured |
| Since launchNot the same days: ARKK Oct 2014 · BULD May 2022 | +336.0% | +67.9% | −31.3 pts vs VOO | not measured |
Side by side
As of Nov 4, 2026. Source: ETFIQ.
1% of the two portfolios are the same securities at the same weight.
Client brief:
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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 86%. The top ten holdings are 50% of the fund across 46 positions, as published by its issuer for Nov 2, 2026. Over the year to Nov 4, 2026 the fund returned −3.7% with distributions reinvested against +14.8% for its benchmark, the S&P 500 Index, so a holder was behind by 18.5 pts. It sits 48.0% below its all-time high of Feb 12, 2021.
BULD
By weight, 36% of BULD's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 97%. The top ten holdings are 64% of the fund across 60 positions, as filed for Jul 31, 2026. Over the year to Nov 4, 2026 the fund returned +23.8% with distributions reinvested. It sits 14.4% below its all-time high of Jun 30, 2026.
Questions people ask
- Do ARKK and BULD hold the same stocks?
- By their latest filings, 1% 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 BULD, data as of Nov 4, 2026. https://etfiq.com/compare/themes/arkk-vs-buld
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