Constituent dispersion · breadth vs the index
ARKK — ARK Innovation
Divergence over time — price vs breadth, by horizon
The hero read is the 1-month picture; here the same price↔breadth divergence across 1 week / 1 month / 1 quarter, computed over the 126-session history. A/D /name is net advancers-minus-decliners per covered constituent; % beating Δ and median−ETF Δ show how participation shifted. Price rising while those fall = the move is narrowing under the surface.
| Horizon | Price | A/D /name | % beating Δ | Median−ETF Δ | Read |
|---|---|---|---|---|---|
| 1 week | +4.65% | +1.26 | +4pp | -2.98pp | Confirming ↑ |
| 1 month | +9.82% | -0.31 | -10pp | -5.83pp | Weakening |
| 1 quarter | +10.74% | -1.95 | -10pp | -5.98pp | Weakening |
Over the last 126 sessions: price up +22.30%, breadth down (-0.9/name) · % beating 39→40 · median−ETF -4.08pp→-6.41pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | +4.50% | +2.99% | -1.50pp | 37 / 5 | 18 / 24 | 5 of 42 | ±3.76% |
| 5d | +4.65% | +1.46% | -3.19pp | 28 / 14 | 15 / 27 | 3 of 42 | ±9.18% |
| 21d | +9.82% | +3.41% | -6.41pp | 24 / 18 | 17 / 25 | 0 of 42 | ±19.11% |
| YTD | +13.00% | +3.45% | -9.55pp | 22 / 19 | 14 / 27 | 0 of 41 | ±90.02% |
Median − ETF below zero means the typical name is lagging the cap-weighted index — the move is top-heavy. "Beat" counts constituents outperforming the ETF over the window. Dispersion is the cross-sectional standard deviation of constituent returns — high = a stock-picker's tape, low = pure beta.
What drove the move — contribution = weight × return
Today (1d)
- TEM+14.85%+0.73pp
- CRSP+9.80%+0.47pp
- AMD+6.36%+0.32pp
- TWST+8.73%+0.28pp
- HOOD+5.16%+0.26pp
- CRWV-4.36%-0.11pp
- SHOP-1.05%-0.05pp
- ROKU-0.67%-0.03pp
- SOFI-0.65%0pp
- XYZ-0.21%0pp
This month (21d)
- TEM+62.80%+3.1pp
- TWST+33.99%+1.08pp
- TXG+38.36%+1.08pp
- HOOD+19.97%+0.99pp
- TSLA+8.71%+0.91pp
- SHOP-12.27%-0.53pp
- CRWV-14.44%-0.36pp
- KTOS-23.12%-0.23pp
- BEAM-7.15%-0.21pp
- BABA-15.30%-0.19pp
Each name's contribution = its index weight × its return — the percentage points it added to (green) or subtracted from (red) the ETF's move. Computed across covered names.
Leaders & laggards (21-day)
- TEM+62.80%
- BLSH+41.80%
- TXG+38.36%
- WGS+37.48%
- TWST+33.99%
- KTOS-23.12%
- BABA-15.30%
- ACHR-14.56%
- CRWV-14.44%
- TER-12.65%
ARKK — constituent leadership race
$100 in each covered ARKK constituent at 2025-12-30, rebased to 100. Watch leadership change hands.
Each covered constituent started at $100 at the window open; the bars race by total return (top 12 shown). Decision-support, not investment advice.
Constituents — 42 covered · click a column to sort
| Symbol | Weight | Last | 1d | 5d | 21d | YTD | RS rank |
|---|---|---|---|---|---|---|---|
| TSLA Tesla Inc | 10.43% | 366.20 | +2.27% | +0.73% | +8.71% | -18.57% | 57 |
| AMD Adv Micro Devices | 5.06% | 545.09 | +6.36% | +8.24% | +12.53% | +154.52% | 60 |
| HOOD Robinhood Markets Inc Cl A | 4.95% | 109.81 | +5.16% | -3.11% | +19.97% | -2.91% | 74 |
| TEM Tempus AI Cl A | 4.94% | 80.36 | +14.85% | +36.81% | +62.80% | +36.09% | 98 |
| CRSP Crispr Therapeutics Ag | 4.77% | 57.33 | +9.80% | +9.69% | +8.22% | +9.32% | 55 |
| ROKU Roku Inc | 4.72% | 154.08 | -0.67% | -0.03% | -2.35% | +42.02% | 36 |
| SHOP Shopify Inc | 4.34% | 128.60 | -1.05% | +1.58% | -12.27% | -20.11% | 12 |
| COIN Coinbase Global Cl A | 3.70% | 173.97 | +5.75% | +0.98% | +18.97% | -23.07% | 71 |
| CRCL Circle Internet Group Inc Cl A | 3.48% | 85.09 | +5.77% | -5.79% | +18.63% | +7.30% | 69 |
| TWST Twist Bioscience Corp | 3.19% | 155.56 | +8.73% | +22.63% | +33.99% | +390.42% | 88 |
| BEAM Beam Therapeutics Inc | 3.00% | 24.67 | +6.80% | +1.23% | -7.15% | -11.00% | 24 |
| PLTR Palantir Technologies Cl A | 2.90% | 176.24 | +1.09% | +6.26% | +2.74% | -0.85% | 48 |
| TXG 10X Genomics Inc | 2.82% | 76.97 | +5.90% | +15.95% | +38.36% | +371.92% | 93 |
| RBLX Roblox Corp Cl A | 2.57% | 47.50 | +0.15% | +5.84% | +26.10% | -41.38% | 81 |
| AMZN Amazon.com Inc | 2.51% | 251.19 | +2.13% | -0.28% | -3.18% | +8.83% | 33 |
| CRWV Coreweave Inc Cl A | 2.47% | 79.72 | -4.36% | -10.55% | -14.44% | +11.33% | 7 |
| GOOG Alphabet Cl C | 1.91% | 343.68 | +1.27% | +4.02% | +0.70% | +9.60% | 43 |
| BLSH Bullish Ord Shs | 1.80% | 34.91 | +8.82% | +3.04% | +41.80% | -7.82% | 95 |
| NVDA Nvidia Corp | 1.73% | 219.34 | +2.54% | +0.45% | -0.18% | +17.75% | 40 |
| BMNR Bitmine Immersion Technologies | 1.54% | 23.89 | +4.73% | -1.28% | +30.69% | -12.01% | 86 |
| XYZ Block Inc | 1.52% | 76.47 | -0.21% | -3.29% | -3.73% | +17.48% | 29 |
| ILMN Illumina Inc | 1.44% | 245.18 | +7.10% | +21.82% | +30.21% | +86.93% | 83 |
| NTRA Natera Inc | 1.26% | 366.31 | +6.07% | +12.32% | +17.52% | +59.90% | 67 |
| BABA Alibaba Group Holding ADR | 1.25% | 108.54 | +1.18% | -0.02% | -15.30% | -25.95% | 2 |
| DE Deere & Company | 1.20% | 685.63 | +2.41% | +1.13% | +16.46% | +47.70% | 64 |
| ACHR Archer Aviation Inc | 1.17% | 5.40 | +3.45% | -0.92% | -14.56% | -28.19% | 5 |
| AVGO Broadcom Ltd | 1.15% | 347.30 | +2.29% | -3.75% | -8.61% | +0.56% | 21 |
| CBRS Cerebras Systems Inc Cl A | 1.10% | 194.14 | +1.93% | +1.46% | -11.76% | — | 14 |
| NTLA Intellia Thera CS | 1.10% | 12.26 | +6.70% | +2.77% | +5.69% | +36.37% | 52 |
| VCYT Veracyte Inc | 1.04% | 40.57 | +5.38% | -3.47% | -0.27% | -3.63% | 38 |
| KTOS Kratos Defense & Security Inc | 1.01% | 47.66 | +0.15% | +1.45% | -23.12% | -37.22% | 0 |
| TSM Taiwan Semiconductor ADR | 1.00% | 430.26 | +3.00% | +0.79% | +4.08% | +41.90% | 50 |
| TER Teradyne Inc | 1.00% | 353.13 | +3.51% | -4.61% | -12.65% | +82.52% | 10 |
| RXRX Recursion Pharmaceuticals Inc Cl A | 0.99% | 3.55 | +11.29% | +12.34% | +14.89% | -13.20% | 62 |
| META META Platforms Inc | 0.94% | 682.31 | +1.34% | +5.89% | +25.50% | +3.45% | 79 |
| WGS Genedx Holdings Corp | 0.89% | 104.95 | +7.73% | +25.00% | +37.48% | -19.31% | 90 |
| BWXT Bwx Technologies Inc | 0.84% | 146.35 | +0.47% | -4.03% | -11.31% | -15.21% | 17 |
| SOFI Sofi Technologies Inc | 0.56% | 16.73 | -0.65% | -2.79% | -5.27% | -36.10% | 26 |
| GOOGL Alphabet Cl A | 0.52% | 347.33 | +1.30% | +4.43% | +0.91% | +11.05% | 45 |
| FIG Figma Inc Cl A | 0.50% | 23.29 | +1.00% | +5.19% | -10.46% | -37.68% | 19 |
| CERS Cerus Corp | 0.36% | 2.66 | +5.14% | +8.13% | -3.62% | +29.13% | 31 |
| PACB Pacific Biosciences | 0.29% | 1.38 | +2.99% | +8.66% | +21.05% | -26.20% | 76 |
RS rank = the constituent's 21-day return percentile within the index (100 = strongest of the covered names). Weight is the index weight; returns use adjusted closes. Default sort: weight.
Other ETFs & indices
Dispersion is computed across the constituents we cover in our data lake (see coverage badge). Decision-support, not investment advice.
FAQ · from the current data
ARKK dispersion — data Q&A
Is ARKK's move broad or carried by a few names (21 sessions)?
As of 2026-09-17: over 21 sessions the fund returned +9.82% while its median constituent returned +3.41% — a dispersion of 19.11 pp; 40% of 42 members beat the fund. Weakening below the surface - the A/D line is falling while price holds up; leadership is narrowing.
How did ARKK's members trade in the last session?
As of 2026-09-17: fund +4.50%, median member +2.99%, 37 advancers vs 5 decliners.
What does the dispersion page for ARKK measure?
It splits the fund into its members: the fund's own return against the median constituent, how many members beat the fund, advancers vs decliners, and a cumulative advance/decline line that tends to lead price. A firm fund price with a weak median and a falling A/D line is a narrow, top-heavy tape; a broad move shows the median keeping up. 42 constituents covered, re-baked nightly from the Closelook lake.
Is this investment advice?
No — a data surface in an investment research diary. It describes breadth inside a fund; it makes no recommendation.