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 | -1.18% | -0.12 | +3pp | +0.11pp | Confirming ↓ |
| 1 month | -16.22% | -2.05 | +9pp | +2.17pp | Confirming ↓ |
| 1 quarter | +9.61% | +0.81 | +9pp | +3.54pp | Confirming ↑ |
Over the last 126 sessions: price up +39.98%, breadth up (+6.58/name) · % beating 56→56 · median−ETF +1.23pp→+0.80pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | -5.55% | -4.67% | +0.87pp | 3 / 40 | 23 / 20 | 6 of 43 | ±4.34% |
| 5d | -1.18% | -0.93% | +0.25pp | 15 / 27 | 24 / 18 | 9 of 42 | ±5.48% |
| 21d | -16.22% | -15.55% | +0.67pp | 3 / 39 | 23 / 19 | 6 of 42 | ±11.63% |
| YTD | +53.79% | +52.94% | -0.85pp | 33 / 8 | 19 / 22 | 2 of 41 | ±55.38% |
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+0.58%+0.01pp
- CRUS+0.06%+0pp
- SLAB+0.06%+0pp
- MXL-21.54%-1.24pp
- ALAB-10.82%-0.49pp
- MRVL-7.21%-0.36pp
- CRDO-9.87%-0.32pp
- INTC-7.89%-0.3pp
This month (21d)
- AMBA+8.05%+0.15pp
- NVDA+3.94%+0.07pp
- AMD+0.43%+0.02pp
- MRVL-29.80%-1.47pp
- NVTS-40.39%-1.26pp
- ALAB-27.09%-1.22pp
- INTC-29.87%-1.15pp
- MXL-15.77%-0.91pp
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)
- AMBA+8.05%
- NVDA+3.94%
- AMD+0.43%
- AVGO-0.04%
- PI-0.34%
- WOLF-49.66%
- NVTS-40.39%
- INTC-29.87%
- MRVL-29.80%
- MTSI-28.44%
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% | 71.59 | -21.54% | -0.35% | -15.77% | — | 45 |
| MRVL Marvell Technology Inc | 4.93% | 194.23 | -7.21% | +2.94% | -29.80% | +128.84% | 7 |
| ALAB Astera Labs Inc | 4.50% | 291.58 | -10.82% | -3.97% | -27.09% | +75.27% | 14 |
| AMD Adv Micro Devices | 3.84% | 521.95 | -3.29% | +5.28% | +0.43% | +143.72% | 93 |
| INTC Intel Corp | 3.84% | 92.32 | -7.89% | -2.86% | -29.87% | +150.19% | 5 |
| MU Micron Technology | 3.75% | 920.95 | -6.99% | +8.48% | -12.17% | +222.81% | 62 |
| CRDO Credo Technology Group Holding Ltd | 3.23% | 213.15 | -9.87% | +5.17% | -20.76% | +48.13% | 29 |
| NVTS Navitas Semiconductor Corp | 3.13% | 10.92 | -9.23% | -4.71% | -40.39% | +52.94% | 2 |
| ON On Semiconductor | 3.06% | 86.81 | -3.68% | -0.64% | -25.00% | +60.31% | 19 |
| SITM Sitime Corp | 3.05% | 554.46 | -3.81% | -0.09% | -19.93% | +56.99% | 33 |
| SMTC Semtech Corp | 2.93% | 125.92 | -9.20% | +0.77% | -20.55% | +70.88% | 31 |
| PENG Penguin Solutions Inc | 2.75% | 53.85 | -7.81% | -10.86% | -16.80% | +175.31% | 43 |
| SYNA Synaptics Inc | 2.64% | 113.00 | -3.91% | -0.92% | -13.15% | +52.66% | 57 |
| POWI Power Integratn | 2.56% | 63.46 | -10.46% | -9.92% | -22.48% | +79.80% | 26 |
| MTSI Macom Technology S | 2.49% | 266.99 | -5.60% | -0.14% | -28.44% | +55.88% | 10 |
| ALGM Allegro Microsystems Inc | 2.40% | 46.03 | -8.07% | -0.97% | -16.94% | +74.49% | 40 |
| QCOM Qualcomm Inc | 2.37% | 166.97 | -2.42% | -2.80% | -15.42% | -1.76% | 50 |
| LSCC Lattice Semicond | 2.36% | 128.42 | -7.03% | +2.55% | -10.78% | +74.53% | 67 |
| TXN Texas Instruments | 2.27% | 279.58 | -1.90% | -1.56% | -7.76% | +62.20% | 76 |
| NXPI Nxp Semiconductors | 2.27% | 269.24 | -2.90% | +1.02% | -8.44% | +24.68% | 74 |
| RMBS Rambus Inc | 2.23% | 96.01 | -6.96% | -5.35% | -22.90% | +4.48% | 24 |
| MPWR Monolithic Power Sys | 2.22% | 1333.81 | -4.53% | +1.66% | -6.91% | +47.46% | 81 |
| MCHP Microchip Technology | 2.20% | 78.86 | -3.06% | -2.59% | -14.73% | +24.49% | 55 |
| PI Impinj Inc | 1.99% | 127.55 | +0.58% | -7.82% | -0.34% | -26.70% | 88 |
| SWKS Skyworks Solutions | 1.98% | 60.21 | -0.43% | +1.45% | -15.67% | -3.08% | 48 |
| FSLR First Solar Inc | 1.97% | 202.82 | -1.51% | -4.33% | -18.34% | -22.36% | 38 |
| RGTI Rigetti Computing Inc | 1.93% | 14.15 | -4.71% | +0.28% | -27.55% | -36.12% | 12 |
| ADI Analog Devices | 1.93% | 371.86 | -2.19% | -0.93% | -10.00% | +37.55% | 69 |
| AMBA Ambarella Inc | 1.87% | 68.06 | -3.47% | +10.06% | +8.05% | -3.92% | 98 |
| QRVO Qorvo Inc | 1.86% | 86.51 | -0.25% | +1.18% | -10.98% | +2.37% | 64 |
| CRUS Cirrus Logic Inc | 1.77% | 133.61 | +0.06% | -3.17% | -15.26% | +12.75% | 52 |
| DIOD Diodes Inc | 1.72% | 87.11 | -6.07% | +0.10% | -22.94% | +76.55% | 21 |
| AVGO Broadcom Ltd | 1.66% | 381.92 | -2.69% | +2.99% | -0.04% | +10.58% | 90 |
| NVDA Nvidia Corp | 1.65% | 206.84 | -0.92% | +1.99% | +3.94% | +11.04% | 95 |
| SLAB Silicon Labs Inc | 1.58% | 216.88 | +0.06% | -0.27% | -0.51% | +65.94% | 86 |
| OLED Universal Display | 1.36% | 79.27 | -0.19% | -1.13% | -9.47% | -31.76% | 71 |
| WOLF Wolfspeed Inc | 1.21% | 23.09 | -11.06% | -22.75% | -49.66% | +32.62% | 0 |
| CEVA Ceva Inc | 1.06% | 36.35 | -6.22% | -4.27% | -19.29% | +68.91% | 36 |
| INDI Indie Semiconductor Cl A | 0.95% | 3.47 | -4.67% | -9.40% | -2.80% | -1.70% | 83 |
| SKYT Skywater Technology Inc | 0.90% | 30.62 | -0.33% | -2.36% | -12.64% | +68.61% | 60 |
| KOPN Kopin Corp | 0.75% | 3.58 | -5.79% | -6.04% | -7.01% | +52.99% | 79 |
| AOSL Alpha and Omega Semi | 0.72% | 30.85 | -8.75% | -1.34% | -26.51% | +55.73% | 17 |
| NVEC Nve Corp | 0.28% | 117.55 | -12.41% | — | — | — | — |
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.