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 | -10.81% | -1.93 | -2pp | +2.08pp | Confirming ↓ |
| 1 month | -17.56% | -2.19 | +9pp | +4.90pp | Confirming ↓ |
| 1 quarter | +1.49% | +0.02 | +14pp | +8.57pp | Confirming ↑ |
Over the last 126 sessions: price up +33.37%, breadth up (+5.65/name) · % beating 51→56 · median−ETF +0.30pp→+3.66pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | -4.33% | -4.87% | -0.54pp | 7 / 36 | 19 / 24 | 7 of 43 | ±3.78% |
| 5d | -10.81% | -10.70% | +0.12pp | 4 / 38 | 21 / 21 | 1 of 42 | ±8.6% |
| 21d | -17.56% | -13.95% | +3.61pp | 4 / 38 | 23 / 19 | 0 of 42 | ±14.12% |
| YTD | +46.69% | +41.73% | -4.96pp | 33 / 8 | 18 / 23 | 1 of 41 | ±47.29% |
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+2.10%+0.04pp
- QRVO+2.23%+0.04pp
- SWKS+1.95%+0.04pp
- AMBA+1.08%+0.02pp
- OLED+0.91%+0.01pp
- MXL-9.13%-0.53pp
- NVTS-12.27%-0.38pp
- MRVL-7.77%-0.38pp
- ALAB-7.89%-0.36pp
- MU-8.85%-0.33pp
This month (21d)
- AMBA+11.01%+0.21pp
- AVGO+4.35%+0.07pp
- NVDA+2.33%+0.04pp
- PI+0.38%+0.01pp
- MXL-38.99%-2.25pp
- MRVL-34.60%-1.71pp
- ALAB-33.57%-1.51pp
- NVTS-42.14%-1.32pp
- INTC-32.75%-1.26pp
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+11.01%
- AVGO+4.35%
- NVDA+2.33%
- PI+0.38%
- SLAB-0.54%
- WOLF-52.40%
- NVTS-42.14%
- MXL-38.99%
- MRVL-34.60%
- AOSL-34.42%
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% | 58.94 | -9.13% | -31.51% | -38.99% | — | 5 |
| MRVL Marvell Technology Inc | 4.93% | 174.47 | -7.77% | -16.10% | -34.60% | +105.56% | 7 |
| ALAB Astera Labs Inc | 4.50% | 260.23 | -7.89% | -18.62% | -33.57% | +56.43% | 12 |
| AMD Adv Micro Devices | 3.84% | 454.62 | -8.15% | -16.50% | -12.84% | +112.28% | 55 |
| INTC Intel Corp | 3.84% | 86.30 | -5.86% | -18.16% | -32.75% | +133.88% | 14 |
| MU Micron Technology | 3.75% | 820.53 | -8.85% | -15.48% | -27.52% | +187.61% | 19 |
| CRDO Credo Technology Group Holding Ltd | 3.23% | 192.28 | -7.62% | -14.11% | -19.21% | +33.63% | 43 |
| NVTS Navitas Semiconductor Corp | 3.13% | 10.01 | -12.27% | -21.95% | -42.14% | +40.20% | 2 |
| ON On Semiconductor | 3.06% | 84.39 | -5.22% | -7.32% | -6.91% | +55.84% | 69 |
| SITM Sitime Corp | 3.05% | 491.10 | -6.04% | -16.79% | -26.94% | +39.05% | 21 |
| SMTC Semtech Corp | 2.93% | 111.30 | -8.41% | -19.25% | -25.68% | +51.04% | 24 |
| PENG Penguin Solutions Inc | 2.75% | 48.13 | -8.31% | -17.16% | -22.72% | +146.06% | 38 |
| SYNA Synaptics Inc | 2.64% | 110.87 | -4.77% | -7.08% | -8.37% | +49.78% | 62 |
| POWI Power Integratn | 2.56% | 59.20 | -6.64% | -20.42% | -25.41% | +67.73% | 26 |
| MTSI Macom Technology S | 2.49% | 249.23 | -5.26% | -11.94% | -32.49% | +45.51% | 17 |
| ALGM Allegro Microsystems Inc | 2.40% | 44.52 | -4.87% | -9.79% | -23.10% | +68.76% | 33 |
| QCOM Qualcomm Inc | 2.37% | 162.88 | -4.21% | -6.12% | -14.00% | -4.17% | 48 |
| LSCC Lattice Semicond | 2.36% | 120.06 | -2.32% | -11.61% | -13.48% | +63.17% | 52 |
| TXN Texas Instruments | 2.27% | 277.07 | -0.84% | -4.88% | -2.93% | +60.75% | 81 |
| NXPI Nxp Semiconductors | 2.27% | 259.12 | -3.19% | -5.14% | -6.46% | +20.00% | 71 |
| RMBS Rambus Inc | 2.23% | 87.75 | -8.99% | -17.05% | -23.52% | -4.51% | 31 |
| MPWR Monolithic Power Sys | 2.22% | 1282.01 | -4.26% | -7.32% | -2.24% | +41.73% | 86 |
| MCHP Microchip Technology | 2.20% | 75.71 | -2.81% | -9.20% | -13.90% | +19.52% | 50 |
| PI Impinj Inc | 1.99% | 133.03 | +2.10% | -2.21% | +0.38% | -23.55% | 90 |
| SWKS Skyworks Solutions | 1.98% | 64.68 | +1.95% | +2.75% | -4.88% | +4.12% | 79 |
| FSLR First Solar Inc | 1.97% | 202.59 | -1.57% | -1.68% | -15.26% | -22.45% | 45 |
| RGTI Rigetti Computing Inc | 1.93% | 14.52 | -7.16% | -4.97% | -20.92% | -34.45% | 40 |
| ADI Analog Devices | 1.93% | 365.83 | -1.63% | -4.44% | -5.45% | +35.32% | 76 |
| AMBA Ambarella Inc | 1.87% | 68.97 | +1.08% | -3.27% | +11.01% | -2.64% | 98 |
| QRVO Qorvo Inc | 1.86% | 91.76 | +2.23% | +3.18% | -2.26% | +8.58% | 83 |
| CRUS Cirrus Logic Inc | 1.77% | 136.16 | +0.03% | -2.34% | -7.06% | +14.90% | 67 |
| DIOD Diodes Inc | 1.72% | 80.29 | -6.53% | -14.36% | -22.90% | +62.73% | 36 |
| AVGO Broadcom Ltd | 1.66% | 380.91 | -0.60% | -1.45% | +4.35% | +10.29% | 95 |
| NVDA Nvidia Corp | 1.65% | 197.01 | +0.25% | -4.96% | +2.33% | +5.76% | 93 |
| SLAB Silicon Labs Inc | 1.58% | 217.25 | -0.02% | -0.07% | -0.54% | +66.22% | 88 |
| OLED Universal Display | 1.36% | 82.29 | +0.91% | +0.13% | -5.59% | -29.16% | 74 |
| WOLF Wolfspeed Inc | 1.21% | 21.88 | -8.07% | -31.04% | -52.40% | +25.67% | 0 |
| CEVA Ceva Inc | 1.06% | 31.70 | -9.87% | -22.15% | -25.09% | +47.30% | 29 |
| INDI Indie Semiconductor Cl A | 0.95% | 3.21 | -6.69% | -16.84% | -9.58% | -9.07% | 60 |
| SKYT Skywater Technology Inc | 0.90% | 31.18 | -1.30% | +0.23% | -10.71% | +71.70% | 57 |
| KOPN Kopin Corp | 0.75% | 3.53 | -4.85% | -13.05% | -7.59% | +50.85% | 64 |
| AOSL Alpha and Omega Semi | 0.72% | 28.85 | -6.39% | -17.55% | -34.42% | +45.63% | 10 |
| NVEC Nve Corp | 0.28% | 116.61 | -0.66% | — | — | — | — |
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.