Constituent dispersion · breadth vs the index
XLB — Materials Select Sector
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 | +1.28% | +0.04 | -4pp | -0.24pp | Confirming ↑ |
| 1 month | -5.17% | -3.31 | +15pp | +2.40pp | Confirming ↓ |
| 1 quarter | -0.86% | -2.46 | -12pp | -2.32pp | Weakening |
Over the last 126 sessions: price down -1.35%, breadth down (-4.69/name) · % beating 35→46 · median−ETF -4.33pp→-0.13pp.
Stocks above their moving average — participation breadth
Of the 26 covered constituents, the share trading above each simple moving average — the classic breadth gauge. A firm index price with a low %-above-MA is a narrow, top-heavy tape. As of 2026-10-06.
New highs & new lows — by horizon
How many of the 26 covered constituents closed today at a new high (or low) over each window, and the net. A shrinking net as the index holds up = fewer names leading.
| Horizon | New highs | New lows | Net |
|---|---|---|---|
| 5-Day | 14 (54%) | 4 (15%) | +10 |
| 1-Month | 3 (12%) | 2 (8%) | +1 |
| 3-Month | 0 (0%) | 1 (4%) | -1 |
| 6-Month | 0 (0%) | 0 (0%) | +0 |
| 52-Week | 0 (0%) | 0 (0%) | +0 |
| YTD | 0 (0%) | 0 (0%) | +0 |
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | +0.46% | +0.52% | +0.06pp | 16 / 9 | 14 / 12 | 18 of 26 | ±2.52% |
| 5d | +1.28% | +0.47% | -0.81pp | 14 / 11 | 11 / 14 | 7 of 25 | ±3.16% |
| 21d | -5.17% | -5.25% | -0.08pp | 3 / 22 | 12 / 13 | 4 of 25 | ±5.24% |
| YTD | +10.15% | +11.63% | +1.48pp | 16 / 8 | 13 / 11 | 0 of 24 | ±23.95% |
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)
- CTVA+12.27%+0.51pp
- LIN+1.57%+0.23pp
- VMC+1.34%+0.06pp
- ECL+1.35%+0.06pp
- CRH+1.15%+0.05pp
- STLD-1.19%-0.06pp
- DOW-1.23%-0.04pp
- MOS-1.64%-0.01pp
- AVY-0.91%-0.01pp
- LYB-0.49%-0.01pp
This month (21d)
- LIN+2.59%+0.38pp
- DD+1.28%+0.03pp
- ECL+0.55%+0.02pp
- NEM-9.13%-0.6pp
- CRH-11.31%-0.5pp
- ALB-15.50%-0.37pp
- IP-13.69%-0.31pp
- APD-6.73%-0.29pp
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)
- LIN+2.59%
- DD+1.28%
- ECL+0.55%
- FCX-0.23%
- STLD-1.61%
- MOS-18.31%
- ALB-15.50%
- IP-13.69%
- CF-13.00%
- CRH-11.31%
XLB — constituent leadership race
$100 in each covered XLB constituent at 2025-12-24, 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 — 26 covered · click a column to sort
| Symbol | Weight | Last | 1d | 5d | 21d | YTD | RS rank |
|---|---|---|---|---|---|---|---|
| LIN Linde Plc | 14.61% | 489.95 | +1.57% | +3.50% | +2.59% | +15.29% | 96 |
| NUE Nucor Corp | 6.64% | 251.07 | -0.14% | +6.53% | -3.83% | +54.45% | 60 |
| NEM Newmont Mining Corp | 6.53% | 116.39 | +0.49% | -0.60% | -9.13% | +17.07% | 20 |
| FCX Freeport-Mcmoran Inc | 5.87% | 72.56 | -0.06% | +2.50% | -0.23% | +43.53% | 84 |
| STLD Steel Dynamics Inc | 4.67% | 238.17 | -1.19% | +7.59% | -1.61% | +40.99% | 80 |
| VMC Vulcan Materials Company | 4.55% | 248.85 | +1.34% | +2.51% | -5.25% | -12.41% | 48 |
| CRH CRH Plc ADR | 4.38% | 83.60 | +1.15% | -1.10% | -11.31% | -32.53% | 16 |
| SHW Sherwin-Williams Company | 4.37% | 321.16 | +0.85% | -2.81% | -3.76% | -0.67% | 68 |
| APD Air Products and Chemicals | 4.34% | 281.00 | +0.55% | +1.31% | -6.73% | +15.30% | 40 |
| CTVA Corteva Inc | 4.15% | 13.91 | +12.27% | — | — | — | — |
| MLM Martin Marietta Materials | 4.14% | 489.01 | +0.72% | +2.07% | -5.00% | -21.26% | 52 |
| ECL Ecolab Inc | 4.10% | 280.82 | +1.35% | +1.06% | +0.55% | +7.26% | 88 |
| PPG PPG Industries | 3.22% | 106.52 | +1.19% | +0.47% | -5.34% | +5.24% | 44 |
| DOW Dow Inc | 2.92% | 28.16 | -1.23% | +1.99% | -4.35% | +23.11% | 56 |
| SW Smurfit Westrock Plc | 2.72% | 42.39 | -0.05% | -4.48% | -7.51% | +11.85% | 28 |
| PKG Packaging Corp of America | 2.44% | 229.74 | +0.19% | -1.52% | -3.17% | +12.05% | 72 |
| ALB Albemarle Corp | 2.41% | 106.35 | +1.90% | -1.18% | -15.50% | -24.62% | 4 |
| IFF International Flavors & Fragrances | 2.41% | 83.92 | +0.79% | -1.56% | -2.81% | +25.26% | 76 |
| DD Dupont Denemours Inc | 2.37% | 133.28 | +1.98% | +2.43% | +1.28% | +11.40% | 92 |
| IP International Paper Company | 2.29% | 32.14 | +0.28% | -3.54% | -13.69% | -16.36% | 8 |
| AMCR Amcor Plc | 2.26% | 41.77 | -0.07% | -1.63% | -7.49% | — | 32 |
| CF Cf Industries Holdings | 2.05% | 116.02 | +0.00% | +0.27% | -13.00% | +51.43% | 12 |
| LYB Lyondellbasell Industries NV | 2.00% | 58.93 | -0.49% | +1.29% | -7.23% | +39.19% | 36 |
| BALL Ball Corporation | 1.84% | 57.43 | +0.56% | +1.38% | -8.36% | +9.14% | 24 |
| AVY Avery Dennison Corp | 1.48% | 168.45 | -0.91% | -1.36% | -3.78% | -6.33% | 64 |
| MOS Mosaic Company | 0.87% | 20.94 | -1.64% | -6.60% | -18.31% | -11.45% | 0 |
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
XLB dispersion — data Q&A
Is XLB's move broad or carried by a few names (21 sessions)?
As of 2026-10-06: over 21 sessions the fund returned -5.17% while its median constituent returned -5.25% — a dispersion of 5.24 pp; 48% of 25 members beat the fund. Broad decline - breadth is falling with price.
How did XLB's members trade in the last session?
As of 2026-10-06: fund +0.46%, median member +0.52%, 16 advancers vs 9 decliners.
What does the dispersion page for XLB 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. 26 constituents covered, re-baked nightly from the Closelooknet lake.
Is this investment advice?
No — a data surface in an investment research diary. It describes breadth inside a fund; it makes no recommendation.