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 | -1.88% | -0.38 | +5pp | -0.30pp | Confirming ↓ |
| 1 month | +16.04% | +0.64 | -28pp | -10.66pp | Confirming ↑ |
| 1 quarter | +3.22% | -3.14 | -8pp | -3.32pp | Weakening |
Over the last 126 sessions: price up +13.97%, breadth down (-1.17/name) · % beating 44→36 · median−ETF -2.59pp→-5.76pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | -3.19% | -2.93% | +0.26pp | 9 / 33 | 24 / 18 | 12 of 42 | ±3.16% |
| 5d | -1.88% | -1.22% | +0.66pp | 17 / 25 | 25 / 17 | 7 of 42 | ±4.26% |
| 21d | +16.04% | +10.28% | -5.76pp | 33 / 9 | 15 / 27 | 1 of 42 | ±17.91% |
| YTD | +9.97% | +6.78% | -3.19pp | 24 / 17 | 17 / 24 | 4 of 41 | ±74.61% |
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)
- AMZN+3.97%+0.1pp
- ROKU+0.91%+0.04pp
- GOOG+1.53%+0.03pp
- BABA+2.23%+0.03pp
- RBLX+1.00%+0.03pp
- TEM-9.41%-0.46pp
- CRCL-7.53%-0.26pp
- HOOD-5.01%-0.25pp
- TWST-7.66%-0.24pp
- COIN-6.33%-0.23pp
This month (21d)
- TEM+44.59%+2.2pp
- TWST+54.80%+1.75pp
- PLTR+52.37%+1.52pp
- TSLA+12.92%+1.35pp
- CRCL+35.65%+1.24pp
- RBLX-20.83%-0.54pp
- VCYT-27.50%-0.29pp
- AMD-4.08%-0.21pp
- CBRS-11.81%-0.13pp
- BWXT-7.69%-0.06pp
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)
- TWST+54.80%
- PLTR+52.37%
- BLSH+45.60%
- TEM+44.59%
- CRCL+35.65%
- VCYT-27.50%
- RBLX-20.83%
- CBRS-11.81%
- CERS-8.30%
- BWXT-7.69%
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% | 348.75 | -1.71% | -3.89% | +12.92% | -22.45% | 57 |
| AMD Adv Micro Devices | 5.06% | 465.58 | -2.33% | -1.62% | -4.08% | +117.40% | 17 |
| HOOD Robinhood Markets Inc Cl A | 4.95% | 104.26 | -5.01% | -3.58% | +20.39% | -7.82% | 69 |
| TEM Tempus AI Cl A | 4.94% | 64.04 | -9.41% | -11.90% | +44.59% | +8.45% | 90 |
| CRSP Crispr Therapeutics Ag | 4.77% | 57.72 | -2.78% | -2.99% | +19.16% | +10.07% | 67 |
| ROKU Roku Inc | 4.72% | 157.68 | +0.91% | +0.12% | +8.67% | +45.34% | 40 |
| SHOP Shopify Inc | 4.34% | 152.90 | -0.93% | +2.45% | +24.92% | -5.01% | 81 |
| COIN Coinbase Global Cl A | 3.70% | 178.64 | -6.33% | -4.21% | +9.21% | -21.00% | 43 |
| CRCL Circle Internet Group Inc Cl A | 3.48% | 87.14 | -7.53% | -0.95% | +35.65% | +9.89% | 88 |
| TWST Twist Bioscience Corp | 3.19% | 141.38 | -7.66% | -2.89% | +54.80% | +345.71% | 98 |
| BEAM Beam Therapeutics Inc | 3.00% | 29.32 | -3.81% | -1.48% | +10.68% | +5.77% | 50 |
| PLTR Palantir Technologies Cl A | 2.90% | 186.29 | +0.19% | +3.53% | +52.37% | +4.80% | 95 |
| TXG 10X Genomics Inc | 2.82% | 61.54 | -5.10% | -5.50% | +24.50% | +277.31% | 79 |
| RBLX Roblox Corp Cl A | 2.57% | 38.53 | +1.00% | +0.42% | -20.83% | -52.45% | 2 |
| AMZN Amazon.com Inc | 2.51% | 266.43 | +3.97% | +3.02% | +13.13% | +15.43% | 60 |
| CRWV Coreweave Inc Cl A | 2.47% | 84.23 | -2.96% | -4.12% | +13.98% | +17.62% | 62 |
| GOOG Alphabet Cl C | 1.91% | 342.88 | +1.53% | +0.33% | +2.76% | +9.34% | 26 |
| BLSH Bullish Ord Shs | 1.80% | 32.89 | -2.00% | +8.16% | +45.60% | -13.15% | 93 |
| NVDA Nvidia Corp | 1.73% | 217.55 | -4.57% | +1.32% | +11.54% | +16.79% | 52 |
| BMNR Bitmine Immersion Technologies | 1.54% | 23.80 | -7.14% | +4.25% | +31.64% | -12.34% | 86 |
| XYZ Block Inc | 1.52% | 83.57 | -1.51% | +1.72% | +1.19% | +28.39% | 21 |
| ILMN Illumina Inc | 1.44% | 215.59 | -5.31% | -1.74% | +5.12% | +64.37% | 33 |
| NTRA Natera Inc | 1.26% | 326.26 | -3.67% | -1.74% | +20.99% | +42.42% | 71 |
| BABA Alibaba Group Holding ADR | 1.25% | 118.90 | +2.23% | -0.37% | +2.22% | -18.88% | 24 |
| DE Deere & Company | 1.20% | 630.33 | +1.23% | -2.65% | +5.15% | +35.78% | 36 |
| ACHR Archer Aviation Inc | 1.17% | 5.75 | -3.04% | -8.73% | +21.31% | -23.54% | 76 |
| AVGO Broadcom Ltd | 1.15% | 368.79 | -0.74% | +0.09% | -4.91% | +6.78% | 14 |
| CBRS Cerebras Systems Inc Cl A | 1.10% | 179.08 | -4.07% | -8.69% | -11.81% | — | 5 |
| NTLA Intellia Thera CS | 1.10% | 12.87 | -1.83% | +0.23% | +16.05% | +43.16% | 64 |
| VCYT Veracyte Inc | 1.04% | 43.34 | -4.22% | +2.43% | -27.50% | +2.95% | 0 |
| KTOS Kratos Defense & Security Inc | 1.01% | 52.00 | -3.15% | -9.04% | +12.63% | -31.50% | 55 |
| TSM Taiwan Semiconductor ADR | 1.00% | 417.52 | -2.29% | -0.34% | +3.52% | +37.70% | 29 |
| TER Teradyne Inc | 1.00% | 354.97 | -4.59% | -5.53% | -2.88% | +83.47% | 19 |
| RXRX Recursion Pharmaceuticals Inc Cl A | 0.99% | 3.34 | -2.91% | -4.57% | +9.87% | -18.34% | 48 |
| META META Platforms Inc | 0.94% | 578.02 | +1.21% | +5.11% | +7.23% | -12.36% | 38 |
| WGS Genedx Holdings Corp | 0.89% | 86.34 | -3.26% | -0.84% | +25.20% | -33.62% | 83 |
| BWXT Bwx Technologies Inc | 0.84% | 152.85 | -1.92% | -2.51% | -7.69% | -11.44% | 10 |
| SOFI Sofi Technologies Inc | 0.56% | 18.06 | -5.84% | -4.49% | +9.65% | -31.02% | 45 |
| GOOGL Alphabet Cl A | 0.52% | 346.59 | +1.74% | +0.51% | +3.88% | +10.81% | 31 |
| FIG Figma Inc Cl A | 0.50% | 28.82 | -5.88% | +6.35% | +21.30% | -22.88% | 74 |
| CERS Cerus Corp | 0.36% | 2.65 | -2.57% | -5.69% | -8.30% | +28.64% | 7 |
| PACB Pacific Biosciences | 0.29% | 1.40 | -9.68% | +3.70% | -5.41% | -25.13% | 12 |
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 2026-08-28: over 21 sessions the fund returned +16.04% while its median constituent returned +10.28% — a dispersion of 17.91 pp; 36% of 42 members beat the fund. Broad advance - breadth is rising with price.
How did ARKK's members trade in the last session?
As of 2026-08-28: fund -3.19%, median member -2.93%, 9 advancers vs 33 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.