Constituent dispersion · breadth vs the index
ARKK — ARK Innovation
Concentration 32.09% in top 5 24.39 effective names · HHI 410
RS vs S&P 500 21d +1.20pp sector return − SPY
RS vs Nasdaq-100 21d -1.27pp sector return − QQQ
Weakening below the surface - the A/D line is falling while price holds up; leadership is narrowing. Last 21 sessions — price +2.09% · A/D -10 (-0.36/name)
ARKK price
Cumulative advance / decline of constituents — rises when more names are up than down; turns before price at inflections
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | +5.26% | +3.80% | -1.46pp | 24 / 4 | 9 / 19 | 7 of 28 | ±3.12% |
| 5d | +4.94% | +2.64% | -2.30pp | 23 / 5 | 9 / 19 | 3 of 28 | ±5.3% |
| 21d | +2.09% | +3.95% | +1.86pp | 17 / 11 | 15 / 13 | 0 of 28 | ±14.92% |
| YTD | +3.52% | +9.47% | +5.95pp | 15 / 13 | 15 / 13 | 0 of 28 | ±46.87% |
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+9.41%+0.46pp
- AMD+6.98%+0.35pp
- TXG+11.72%+0.33pp
- HOOD+5.29%+0.26pp
- COIN+6.16%+0.23pp
- ROKU-1.92%-0.09pp
- KTOS-1.26%-0.01pp
- DE-0.35%0pp
- BABA-0.24%0pp
This month (21d)
- TXG+49.72%+1.4pp
- AMD+21.69%+1.1pp
- HOOD+21.59%+1.07pp
- TEM+15.04%+0.74pp
- SHOP+15.47%+0.67pp
- TSLA-7.25%-0.76pp
- COIN-19.99%-0.74pp
- BABA-20.25%-0.25pp
- AMZN-7.93%-0.2pp
- NVDA-9.88%-0.17pp
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)
- TXG+49.72%
- AMD+21.69%
- HOOD+21.59%
- TER+21.32%
- ILMN+16.51%
- BABA-20.25%
- COIN-19.99%
- AVGO-10.43%
- NVDA-9.88%
- BWXT-7.94%
Other ETFs & indices
Dispersion is computed across the constituents we cover in our data lake (see coverage badge). Decision-support, not investment advice.