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 | -1.74% | -0.69 | +9pp | +3.26pp | Confirming ↓ |
| 1 month | +2.58% | -1.93 | -12pp | -2.24pp | Weakening |
| 1 quarter | +11.99% | -2.12 | -17pp | -4.18pp | Weakening |
Over the last 126 sessions: price up +17.59%, breadth down (-1.6/name) · % beating 29→40 · median−ETF -7.24pp→-2.15pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | +1.36% | +1.91% | +0.54pp | 30 / 12 | 24 / 18 | 10 of 42 | ±4.59% |
| 5d | -1.74% | -2.23% | -0.49pp | 14 / 27 | 19 / 23 | 5 of 42 | ±6.53% |
| 21d | +2.58% | +0.43% | -2.15pp | 22 / 20 | 17 / 25 | 3 of 42 | ±16.38% |
| YTD | +10.14% | +0.99% | -9.15pp | 22 / 19 | 17 / 24 | 2 of 41 | ±77.63% |
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)
- COIN+9.24%+0.34pp
- RBLX+12.73%+0.33pp
- TEM+5.42%+0.27pp
- CRCL+7.53%+0.26pp
- TWST+5.92%+0.19pp
- AMD-4.40%-0.22pp
- TSLA-1.77%-0.18pp
- CRWV-6.75%-0.17pp
- TER-13.30%-0.13pp
- CBRS-5.59%-0.06pp
This month (21d)
- CRCL+29.24%+1.02pp
- RBLX+35.15%+0.9pp
- COIN+24.40%+0.9pp
- HOOD+15.05%+0.75pp
- TEM+14.59%+0.72pp
- SHOP-15.54%-0.67pp
- CRWV-21.93%-0.54pp
- BEAM-9.02%-0.27pp
- ACHR-20.95%-0.25pp
- KTOS-24.22%-0.24pp
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)
- BMNR+40.84%
- BLSH+36.90%
- RBLX+35.15%
- CRCL+29.24%
- COIN+24.40%
- KTOS-24.22%
- CRWV-21.93%
- CBRS-21.56%
- ACHR-20.95%
- TER-19.81%
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% | 358.97 | -1.77% | +1.38% | +5.59% | -20.18% | 62 |
| AMD Adv Micro Devices | 5.06% | 493.41 | -4.40% | +3.32% | +2.15% | +130.39% | 55 |
| HOOD Robinhood Markets Inc Cl A | 4.95% | 114.33 | +1.56% | -6.37% | +15.05% | +1.09% | 81 |
| TEM Tempus AI Cl A | 4.94% | 62.21 | +5.42% | -3.73% | +14.59% | +5.35% | 79 |
| CRSP Crispr Therapeutics Ag | 4.77% | 52.96 | +2.40% | -5.07% | -1.91% | +0.99% | 45 |
| ROKU Roku Inc | 4.72% | 157.45 | +1.63% | +1.20% | +2.19% | +45.13% | 57 |
| SHOP Shopify Inc | 4.34% | 133.89 | +3.96% | -7.72% | -15.54% | -16.82% | 14 |
| COIN Coinbase Global Cl A | 3.70% | 191.45 | +9.24% | +3.69% | +24.40% | -15.34% | 88 |
| CRCL Circle Internet Group Inc Cl A | 3.48% | 97.42 | +7.53% | -4.54% | +29.24% | +22.85% | 90 |
| TWST Twist Bioscience Corp | 3.19% | 134.75 | +5.92% | +8.04% | +7.55% | +324.81% | 64 |
| BEAM Beam Therapeutics Inc | 3.00% | 24.12 | +0.54% | -18.68% | -9.02% | -12.99% | 26 |
| PLTR Palantir Technologies Cl A | 2.90% | 173.31 | +3.64% | -0.59% | -3.18% | -2.50% | 40 |
| TXG 10X Genomics Inc | 2.82% | 70.11 | +2.22% | +11.91% | +20.57% | +329.86% | 86 |
| RBLX Roblox Corp Cl A | 2.57% | 51.29 | +12.73% | +18.43% | +35.15% | -36.70% | 93 |
| AMZN Amazon.com Inc | 2.51% | 253.54 | -1.26% | -1.92% | -4.37% | +9.84% | 31 |
| CRWV Coreweave Inc Cl A | 2.47% | 82.98 | -6.75% | -7.14% | -21.93% | +15.88% | 2 |
| GOOG Alphabet Cl C | 1.91% | 345.71 | +3.06% | +3.10% | +0.51% | +10.25% | 50 |
| BLSH Bullish Ord Shs | 1.80% | 37.62 | +7.12% | +4.50% | +36.90% | -0.66% | 95 |
| NVDA Nvidia Corp | 1.73% | 210.96 | -3.36% | -8.32% | -6.36% | +13.25% | 29 |
| BMNR Bitmine Immersion Technologies | 1.54% | 25.76 | +2.92% | +3.16% | +40.84% | -5.12% | 98 |
| XYZ Block Inc | 1.52% | 79.49 | +0.35% | -3.95% | -4.33% | +22.12% | 33 |
| ILMN Illumina Inc | 1.44% | 208.21 | +0.85% | -4.59% | +8.08% | +58.75% | 67 |
| NTRA Natera Inc | 1.26% | 341.79 | +3.91% | +4.15% | +9.98% | +49.19% | 69 |
| BABA Alibaba Group Holding ADR | 1.25% | 109.23 | -0.06% | -3.54% | -10.58% | -25.48% | 19 |
| DE Deere & Company | 1.20% | 681.46 | +0.85% | -1.74% | +11.28% | +46.80% | 71 |
| ACHR Archer Aviation Inc | 1.17% | 5.51 | -1.25% | -3.50% | -20.95% | -26.73% | 7 |
| AVGO Broadcom Ltd | 1.15% | 344.72 | -4.77% | -3.68% | -17.50% | -0.19% | 12 |
| CBRS Cerebras Systems Inc Cl A | 1.10% | 181.21 | -5.59% | -13.73% | -21.56% | — | 5 |
| NTLA Intellia Thera CS | 1.10% | 11.87 | +1.11% | -6.83% | +0.34% | +32.04% | 48 |
| VCYT Veracyte Inc | 1.04% | 41.21 | +0.83% | -3.10% | -3.26% | -2.11% | 38 |
| KTOS Kratos Defense & Security Inc | 1.01% | 47.58 | +1.91% | -0.50% | -24.22% | -37.32% | 0 |
| TSM Taiwan Semiconductor ADR | 1.00% | 418.01 | -3.52% | -2.54% | -2.90% | +37.86% | 43 |
| TER Teradyne Inc | 1.00% | 329.20 | -13.30% | -7.79% | -19.81% | +70.15% | 10 |
| RXRX Recursion Pharmaceuticals Inc Cl A | 0.99% | 3.41 | +6.56% | -6.06% | +3.02% | -16.63% | 60 |
| META META Platforms Inc | 0.94% | 665.60 | +2.71% | +7.92% | +11.87% | +0.92% | 74 |
| WGS Genedx Holdings Corp | 0.89% | 89.74 | +5.25% | +4.36% | +13.38% | -31.00% | 76 |
| BWXT Bwx Technologies Inc | 0.84% | 148.53 | -1.06% | -5.75% | -12.67% | -13.95% | 17 |
| SOFI Sofi Technologies Inc | 0.56% | 17.65 | +1.91% | -3.13% | -4.23% | -32.58% | 36 |
| GOOGL Alphabet Cl A | 0.52% | 349.39 | +3.22% | +3.23% | +0.87% | +11.70% | 52 |
| FIG Figma Inc Cl A | 0.50% | 23.91 | +3.06% | -0.87% | -9.26% | -36.02% | 24 |
| CERS Cerus Corp | 0.36% | 2.55 | +2.41% | -1.54% | -10.21% | +23.79% | 21 |
| PACB Pacific Biosciences | 0.29% | 1.35 | +3.85% | +0.00% | +17.39% | -27.81% | 83 |
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 2026-09-14: over 21 sessions the fund returned +2.58% while its median constituent returned +0.43% — a dispersion of 16.38 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 2026-09-14: fund +1.36%, median member +1.91%, 30 advancers vs 12 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.