Constituent dispersion · breadth vs the ETF
XLB — Materials Select Sector
Broad advance - breadth is rising with price. Last 21 sessions — price +1.61% · A/D +31 (+1.19/name)
XLB 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 |
|---|---|---|---|---|---|---|
| 1d | +0.61% | +0.61% | +0.00pp | 17 / 9 | 13 / 13 | 10 of 26 |
| 5d | +5.08% | +5.90% | +0.81pp | 22 / 4 | 15 / 11 | 4 of 26 |
| 21d | +1.61% | +2.36% | +0.75pp | 18 / 8 | 16 / 10 | 5 of 26 |
| YTD | +16.28% | +14.79% | -1.50pp | 19 / 7 | 12 / 14 | 2 of 26 |
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.
Leaders & laggards (21-day)
- IP+16.87%
- STLD+15.98%
- PPG+14.74%
- SW+12.49%
- NUE+11.37%
- DOW-13.44%
- CF-12.71%
- LYB-12.70%
- ALB-11.62%
- CTVA-8.90%
Other ETFs & indices
Dispersion is computed across the constituents we cover in our data lake (see coverage badge). Decision-support, not investment advice.