Constituent dispersion · breadth vs the index
XSD — SPDR S&P Semiconductor (EW)
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 | -11.98% | -2.35 | +3pp | +0.40pp | Confirming ↓ |
| 1 month | +0.50% | +0.72 | +9pp | +2.15pp | Improving |
| 1 quarter | -4.76% | -0.4 | +3pp | -0.71pp | Confirming ↓ |
Over the last 126 sessions: price up +19.47%, breadth up (+3.51/name) · % beating 44→54 · median−ETF -0.80pp→+0.51pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | -5.31% | -4.42% | +0.89pp | 4 / 38 | 25 / 18 | 11 of 43 | ±4.24% |
| 5d | -11.98% | -12.21% | -0.23pp | 2 / 41 | 21 / 22 | 5 of 43 | ±7.8% |
| 21d | +0.50% | +1.01% | +0.51pp | 24 / 19 | 23 / 20 | 4 of 43 | ±13.33% |
| YTD | +50.18% | +35.48% | -14.70pp | 35 / 6 | 15 / 26 | 1 of 41 | ±67.03% |
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)
- PI+4.77%+0.09pp
- SKYT+6.15%+0.06pp
- SWKS+0.43%+0.01pp
- CRUS+0.32%+0.01pp
- MXL-11.08%-0.64pp
- MRVL-8.73%-0.43pp
- PENG-13.57%-0.37pp
- ALAB-7.72%-0.35pp
- NVTS-10.48%-0.33pp
This month (21d)
- PENG+42.29%+1.16pp
- MXL+17.43%+1.01pp
- ALAB+18.90%+0.85pp
- CRDO+19.17%+0.62pp
- SYNA+20.59%+0.54pp
- RGTI-22.60%-0.44pp
- NVTS-13.46%-0.42pp
- INDI-34.90%-0.33pp
- SWKS-14.57%-0.29pp
- FSLR-11.50%-0.23pp
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)
- PENG+42.29%
- MTSI+21.38%
- SYNA+20.59%
- CRDO+19.17%
- ALAB+18.90%
- INDI-34.90%
- RGTI-22.60%
- SWKS-14.57%
- NVTS-13.46%
- KOPN-11.98%
XSD — constituent leadership race
$100 in each covered XSD 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 — 43 covered · click a column to sort
| Symbol | Weight | Last | 1d | 5d | 21d | YTD | RS rank |
|---|---|---|---|---|---|---|---|
| MXL Maxlinear Inc | 5.77% | 78.82 | -11.08% | -26.58% | +17.43% | — | 86 |
| MRVL Marvell Technology Inc | 4.93% | 245.28 | -8.73% | -13.82% | +10.64% | +188.98% | 74 |
| ALAB Astera Labs Inc | 4.50% | 300.28 | -7.72% | -21.44% | +18.90% | +80.50% | 88 |
| AMD Adv Micro Devices | 3.84% | 570.82 | -5.73% | -11.62% | +13.21% | +166.54% | 81 |
| INTC Intel Corp | 3.84% | 98.12 | -4.56% | -13.26% | +1.01% | +165.91% | 49 |
| MU Micron Technology | 3.75% | 914.13 | -4.08% | -15.97% | -1.45% | +220.42% | 40 |
| CRDO Credo Technology Group Holding Ltd | 3.23% | 179.23 | -9.62% | -18.54% | +19.17% | +24.56% | 91 |
| NVTS Navitas Semiconductor Corp | 3.13% | 9.36 | -10.48% | -17.21% | -13.46% | +31.02% | 7 |
| ON On Semiconductor | 3.06% | 73.36 | -4.34% | -11.09% | +0.22% | +35.48% | 44 |
| SITM Sitime Corp | 3.05% | 524.93 | -9.44% | -21.08% | -4.63% | +48.63% | 26 |
| SMTC Semtech Corp | 2.93% | 160.26 | -7.25% | -17.30% | +6.20% | +117.48% | 60 |
| PENG Penguin Solutions Inc | 2.75% | 67.59 | -13.57% | -6.91% | +42.29% | +245.55% | 98 |
| SYNA Synaptics Inc | 2.64% | 117.36 | -1.74% | -1.76% | +20.59% | +58.55% | 93 |
| POWI Power Integratn | 2.56% | 44.78 | -4.11% | -12.88% | -7.23% | +26.87% | 19 |
| MTSI Macom Technology S | 2.49% | 291.33 | -5.64% | -13.27% | +21.38% | +70.09% | 95 |
| ALGM Allegro Microsystems Inc | 2.40% | 32.22 | -4.25% | -12.99% | -3.13% | +22.14% | 35 |
| QCOM Qualcomm Inc | 2.37% | 172.62 | -2.40% | -2.54% | -8.08% | +1.57% | 16 |
| LSCC Lattice Semicond | 2.36% | 115.00 | -5.08% | -12.21% | +7.99% | +56.29% | 67 |
| TXN Texas Instruments | 2.27% | 280.65 | -2.50% | -2.88% | +6.54% | +62.82% | 63 |
| NXPI Nxp Semiconductors | 2.27% | 220.83 | -2.43% | -6.12% | -2.00% | +2.26% | 37 |
| RMBS Rambus Inc | 2.23% | 92.11 | -6.17% | -17.38% | +10.83% | +0.24% | 77 |
| MPWR Monolithic Power Sys | 2.22% | 1243.11 | -5.79% | -12.82% | +8.81% | +37.43% | 70 |
| MCHP Microchip Technology | 2.20% | 71.25 | -3.92% | -8.68% | -0.34% | +12.48% | 42 |
| PI Impinj Inc | 1.99% | 192.14 | +4.77% | +0.58% | +10.18% | +10.42% | 72 |
| SWKS Skyworks Solutions | 1.98% | 76.89 | +0.43% | -7.84% | -14.57% | +23.77% | 5 |
| FSLR First Solar Inc | 1.97% | 179.08 | -4.03% | -0.58% | -11.50% | -31.45% | 12 |
| RGTI Rigetti Computing Inc | 1.93% | 11.68 | -8.61% | -19.95% | -22.60% | -47.27% | 2 |
| ADI Analog Devices | 1.93% | 403.57 | -2.68% | -1.59% | +11.68% | +49.27% | 79 |
| AMBA Ambarella Inc | 1.87% | 61.46 | -4.42% | -5.92% | -4.46% | -13.24% | 28 |
| QRVO Qorvo Inc | 1.86% | 114.17 | +0.00% | -1.83% | +13.74% | +35.10% | 84 |
| CRUS Cirrus Logic Inc | 1.77% | 108.34 | +0.32% | -3.85% | -11.35% | -8.57% | 14 |
| DIOD Diodes Inc | 1.72% | 86.71 | -4.42% | -13.85% | -3.94% | +75.74% | 30 |
| AVGO Broadcom Ltd | 1.66% | 346.25 | -3.10% | -8.04% | +2.24% | +0.25% | 51 |
| NVDA Nvidia Corp | 1.65% | 221.30 | -3.16% | -6.81% | +4.30% | +18.80% | 56 |
| SLAB Silicon Labs Inc | 1.58% | 221.09 | -0.03% | -0.39% | +0.51% | +69.16% | 47 |
| OLED Universal Display | 1.36% | 74.95 | -0.94% | -2.94% | -3.15% | -35.48% | 33 |
| WOLF Wolfspeed Inc | 1.21% | 24.58 | -13.97% | -21.64% | +2.33% | +41.18% | 53 |
| CEVA Ceva Inc | 1.06% | 29.23 | -5.28% | -17.62% | +4.73% | +35.83% | 58 |
| INDI Indie Semiconductor Cl A | 0.95% | 2.01 | -9.48% | -26.82% | -34.90% | -43.20% | 0 |
| SKYT Skywater Technology Inc | 0.90% | 32.46 | +6.15% | +5.66% | -6.78% | +78.74% | 21 |
| KOPN Kopin Corp | 0.75% | 3.82 | -9.48% | -16.41% | -11.98% | +63.25% | 9 |
| AOSL Alpha and Omega Semi | 0.72% | 23.47 | -9.24% | -19.73% | -5.21% | +18.48% | 23 |
| NVEC Nve Corp | 0.28% | 104.17 | -5.93% | -6.92% | +6.61% | — | 65 |
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
XSD dispersion — data Q&A
Is XSD's move broad or carried by a few names (21 sessions)?
As of 2026-10-14: over 21 sessions the fund returned +0.50% while its median constituent returned +1.01% — a dispersion of 13.33 pp; 53% of 43 members beat the fund. Improving below the surface - the A/D line is rising while price is flat-to-down; more names participating than the headline shows.
How did XSD's members trade in the last session?
As of 2026-10-14: fund -5.31%, median member -4.42%, 4 advancers vs 38 decliners.
What does the dispersion page for XSD 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. 43 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.