Constituent dispersion · breadth vs the index
XLC — Communication Services 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 | +2.71% | +0.3 | +0pp | +0.32pp | Confirming ↑ |
| 1 month | +2.24% | +0.74 | -19pp | -6.50pp | Confirming ↑ |
| 1 quarter | +3.34% | +2.39 | -9pp | -2.45pp | Confirming ↑ |
Over the last 126 sessions: price down -1.34%, breadth up (+1.22/name) · % beating 48→52 · median−ETF -0.48pp→+0.42pp.
Stocks above their moving average — participation breadth
Of the 23 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 2026-09-14.
New highs & new lows — by horizon
How many of the 23 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 | 16 (70%) | 2 (9%) | +14 |
| 1-Month | 5 (22%) | 1 (4%) | +4 |
| 3-Month | 2 (9%) | 1 (4%) | +1 |
| 6-Month | 1 (4%) | 1 (4%) | +0 |
| 52-Week | 1 (5%) | 0 (0%) | +1 |
| YTD | 1 (4%) | 1 (4%) | +0 |
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | +2.19% | +2.55% | +0.35pp | 19 / 3 | 12 / 11 | 8 of 23 | ±2.18% |
| 5d | +2.71% | +2.29% | -0.42pp | 17 / 6 | 10 / 13 | 6 of 23 | ±3.88% |
| 21d | +2.24% | +2.35% | +0.11pp | 15 / 8 | 12 / 11 | 5 of 23 | ±8.06% |
| YTD | -1.94% | -4.55% | -2.61pp | 10 / 13 | 10 / 13 | 1 of 23 | ±18.85% |
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)
- META+2.71%+0.35pp
- GOOGL+3.22%+0.31pp
- GOOG+3.06%+0.24pp
- TTWO+3.45%+0.17pp
- NFLX+3.77%+0.14pp
- SATS-4.14%-0.18pp
- CHTR-1.66%-0.05pp
- CMCSA-1.27%-0.05pp
This month (21d)
- META+11.87%+1.55pp
- T+7.85%+0.28pp
- VZ+6.37%+0.27pp
- DIS+3.62%+0.17pp
- NWSA+5.60%+0.15pp
- SATS-26.16%-1.11pp
- LYV-7.83%-0.4pp
- TTWO-7.85%-0.38pp
- OMC-8.25%-0.37pp
- CHTR-8.42%-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)
- META+11.87%
- PSKY+9.03%
- T+7.85%
- VZ+6.37%
- NWSA+5.60%
- SATS-26.16%
- CHTR-8.42%
- OMC-8.25%
- TTWO-7.85%
- LYV-7.83%
XLC — constituent leadership race
$100 in each covered XLC 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 — 23 covered · click a column to sort
| Symbol | Weight | Last | 1d | 5d | 21d | YTD | RS rank |
|---|---|---|---|---|---|---|---|
| META META Platforms Inc | 13.05% | 665.60 | +2.71% | +7.92% | +11.87% | +0.92% | 96 |
| GOOGL Alphabet Cl A | 9.72% | 349.39 | +3.22% | +3.23% | +0.87% | +11.70% | 39 |
| GOOG Alphabet Cl C | 7.80% | 345.71 | +3.06% | +3.10% | +0.51% | +10.25% | 35 |
| LYV Live Nation Entertainment | 5.06% | 171.49 | +0.79% | -1.16% | -7.83% | +20.34% | 17 |
| TTWO Take-Two Interactive | 4.79% | 222.91 | +3.45% | +3.83% | -7.85% | -12.94% | 13 |
| DIS Walt Disney Company | 4.63% | 108.59 | +1.91% | +3.11% | +3.62% | -4.55% | 65 |
| OMC Omnicom Group Inc | 4.44% | 81.07 | +2.61% | -1.88% | -8.25% | +1.40% | 9 |
| EA Electronic Arts Inc | 4.38% | 209.70 | +0.00% | +0.05% | +2.35% | +2.73% | 48 |
| WBD Discovery Inc Series A | 4.35% | 28.10 | +0.21% | -0.53% | +1.26% | -2.50% | 43 |
| SATS Echostar Corp | 4.24% | 92.03 | -4.14% | -8.74% | -26.16% | -15.34% | 0 |
| VZ Verizon Communications | 4.17% | 51.29 | +1.34% | +2.29% | +6.37% | +30.04% | 83 |
| TMUS T-Mobile US | 3.86% | 182.90 | +0.31% | +0.76% | -0.26% | -9.49% | 30 |
| NFLX Netflix Inc | 3.77% | 80.32 | +3.77% | +2.65% | +2.66% | -14.33% | 52 |
| TKO Tko Group Holdings Cl A | 3.70% | 193.72 | +1.79% | +4.14% | -2.98% | -6.94% | 26 |
| CMCSA Comcast Corp A | 3.70% | 24.88 | -1.27% | -6.08% | -4.97% | -9.10% | 22 |
| T AT&T Inc | 3.57% | 26.51 | +1.73% | +3.23% | +7.85% | +9.10% | 87 |
| FOXA Fox Corp Cl A | 2.96% | 68.53 | +3.93% | +4.75% | +4.71% | -5.75% | 70 |
| CHTR Charter Communications | 2.88% | 143.35 | -1.66% | -5.68% | -8.42% | -31.33% | 4 |
| NWSA News Corp Cl A | 2.62% | 30.56 | +3.80% | +0.90% | +5.60% | +17.49% | 78 |
| TTD Trade Desk Inc | 2.34% | 14.97 | +4.39% | +3.74% | +2.82% | -60.56% | 57 |
| FOX Fox Corp Cl B | 1.87% | 61.14 | +4.60% | +4.66% | +5.23% | -5.33% | 74 |
| NWS News Corp Cl B | 0.99% | 33.86 | +3.52% | +0.18% | +2.82% | +14.70% | 61 |
| PSKY Paramount Skydance Corp Cl B | 0.89% | 10.87 | +2.55% | +0.09% | +9.03% | -18.46% | 91 |
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
XLC dispersion — data Q&A
Is XLC's move broad or carried by a few names (21 sessions)?
As of 2026-09-14: over 21 sessions the fund returned +2.24% while its median constituent returned +2.35% — a dispersion of 8.06 pp; 52% of 23 members beat the fund. Broad advance - breadth is rising with price.
How did XLC's members trade in the last session?
As of 2026-09-14: fund +2.19%, median member +2.55%, 19 advancers vs 3 decliners.
What does the dispersion page for XLC 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. 23 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.