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 | -6.98% | -1.21 | -9pp | -0.85pp | Confirming ↓ |
| 1 month | -13.15% | -2.19 | +0pp | +2.60pp | Confirming ↓ |
| 1 quarter | +67.34% | +9.4 | +0pp | -0.26pp | Confirming ↑ |
Over the last 126 sessions: price up +72.94%, breadth up (+9.12/name) · % beating 51→40 · median−ETF +0.06pp→-1.61pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | -6.74% | -5.49% | +1.24pp | 0 / 43 | 26 / 17 | 4 of 43 | ±4.16% |
| 5d | -6.98% | -8.47% | -1.49pp | 7 / 36 | 17 / 26 | 4 of 43 | ±9% |
| 21d | -13.15% | -14.77% | -1.61pp | 5 / 38 | 17 / 26 | 5 of 43 | ±13.19% |
| YTD | +72.94% | +68.29% | -4.65pp | 38 / 4 | 17 / 25 | 0 of 42 | ±66.3% |
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)
- MXL-17.15%-0.99pp
- MRVL-9.84%-0.48pp
- SITM-14.52%-0.44pp
- NVTS-12.52%-0.39pp
- PENG-10.67%-0.29pp
This month (21d)
- ALAB+14.24%+0.64pp
- INTC+11.51%+0.44pp
- MXL+4.91%+0.28pp
- ALGM+10.24%+0.25pp
- CRDO+5.64%+0.18pp
- NVTS-44.08%-1.38pp
- ON-29.09%-0.89pp
- MRVL-15.65%-0.77pp
- RMBS-32.29%-0.72pp
- RGTI-33.26%-0.64pp
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)
- ALAB+14.24%
- INTC+11.51%
- ALGM+10.24%
- CRDO+5.64%
- MXL+4.91%
- NVTS-44.08%
- KOPN-36.07%
- WOLF-34.49%
- RGTI-33.26%
- RMBS-32.29%
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% | 93.12 | -17.15% | -1.43% | +4.91% | — | 88 |
| MRVL Marvell Technology Inc | 4.93% | 245.29 | -9.84% | -12.79% | -15.65% | +189.00% | 42 |
| ALAB Astera Labs Inc | 4.50% | 406.42 | -5.67% | +2.12% | +14.24% | +144.30% | 98 |
| AMD Adv Micro Devices | 3.84% | 517.82 | -4.26% | -2.77% | -0.71% | +141.79% | 81 |
| INTC Intel Corp | 3.84% | 120.35 | -5.25% | -9.42% | +11.51% | +226.15% | 95 |
| MU Micron Technology | 3.75% | 975.56 | -5.49% | -19.61% | -8.32% | +241.95% | 74 |
| CRDO Credo Technology Group Holding Ltd | 3.23% | 241.91 | -6.63% | -9.75% | +5.64% | +68.12% | 91 |
| NVTS Navitas Semiconductor Corp | 3.13% | 14.46 | -12.52% | -18.31% | -44.08% | +102.52% | 0 |
| ON On Semiconductor | 3.06% | 91.22 | -3.60% | -23.18% | -29.09% | +68.46% | 14 |
| SITM Sitime Corp | 3.05% | 601.66 | -14.52% | -10.96% | -14.18% | +70.35% | 56 |
| SMTC Semtech Corp | 2.93% | 135.27 | -8.00% | -16.64% | -18.82% | +83.57% | 28 |
| PENG Penguin Solutions Inc | 2.75% | 61.47 | -10.67% | -7.94% | -12.99% | +214.26% | 60 |
| SYNA Synaptics Inc | 2.64% | 119.52 | -5.65% | -4.86% | -18.16% | +61.47% | 33 |
| POWI Power Integratn | 2.56% | 72.99 | -9.07% | -13.94% | -13.30% | +106.80% | 58 |
| MTSI Macom Technology S | 2.49% | 322.26 | -8.09% | -17.41% | -15.72% | +88.15% | 37 |
| ALGM Allegro Microsystems Inc | 2.40% | 55.49 | -12.21% | -7.77% | +10.24% | +110.33% | 93 |
| QCOM Qualcomm Inc | 2.37% | 176.25 | -3.12% | -13.98% | -26.55% | +3.70% | 19 |
| LSCC Lattice Semicond | 2.36% | 136.53 | -6.68% | -5.32% | -9.79% | +85.55% | 72 |
| TXN Texas Instruments | 2.27% | 293.08 | -1.79% | -6.01% | -4.88% | +70.03% | 77 |
| NXPI Nxp Semiconductors | 2.27% | 273.36 | -2.08% | -8.47% | -15.53% | +26.59% | 44 |
| RMBS Rambus Inc | 2.23% | 112.92 | -8.81% | -8.71% | -32.29% | +22.89% | 9 |
| MPWR Monolithic Power Sys | 2.22% | 1288.16 | -3.27% | -10.30% | -20.73% | +42.41% | 26 |
| MCHP Microchip Technology | 2.20% | 84.64 | -4.57% | -10.07% | -12.71% | +33.61% | 63 |
| PI Impinj Inc | 1.99% | 141.58 | -1.41% | +5.41% | -1.17% | -18.64% | 79 |
| SWKS Skyworks Solutions | 1.98% | 62.56 | -5.11% | -10.55% | -20.93% | +0.70% | 23 |
| FSLR First Solar Inc | 1.97% | 224.57 | -3.24% | -9.68% | -27.79% | -14.03% | 16 |
| RGTI Rigetti Computing Inc | 1.93% | 17.94 | -3.96% | -2.55% | -33.26% | -19.01% | 7 |
| ADI Analog Devices | 1.93% | 377.16 | -3.04% | -9.76% | -10.88% | +39.51% | 70 |
| AMBA Ambarella Inc | 1.87% | 78.36 | -11.30% | +22.23% | -0.03% | +10.62% | 86 |
| QRVO Qorvo Inc | 1.86% | 87.57 | -3.64% | -8.18% | -14.77% | +3.62% | 49 |
| CRUS Cirrus Logic Inc | 1.77% | 146.24 | -0.12% | -5.03% | -14.29% | +23.41% | 51 |
| DIOD Diodes Inc | 1.72% | 96.25 | -8.67% | -16.28% | -15.67% | +95.07% | 40 |
| AVGO Broadcom Ltd | 1.66% | 360.45 | -2.41% | -4.87% | -25.15% | +4.36% | 21 |
| NVDA Nvidia Corp | 1.65% | 194.83 | -1.39% | -0.46% | -12.46% | +4.47% | 67 |
| SLAB Silicon Labs Inc | 1.58% | 218.22 | -0.07% | +0.12% | -0.24% | +66.96% | 84 |
| OLED Universal Display | 1.36% | 78.70 | -5.24% | -10.10% | -16.09% | -32.25% | 35 |
| WOLF Wolfspeed Inc | 1.21% | 40.00 | -10.23% | -16.30% | -34.49% | +129.75% | 5 |
| CEVA Ceva Inc | 1.06% | 40.42 | -11.18% | -7.93% | -18.52% | +87.83% | 30 |
| INDI Indie Semiconductor Cl A | 0.95% | 4.33 | -4.63% | +17.34% | -15.10% | +22.66% | 47 |
| SKYT Skywater Technology Inc | 0.90% | 34.24 | -1.67% | -1.55% | -14.21% | +88.55% | 53 |
| KOPN Kopin Corp | 0.75% | 3.90 | -7.58% | +2.90% | -36.07% | +66.67% | 2 |
| AOSL Alpha and Omega Semi | 0.72% | 37.11 | -14.73% | -18.80% | -30.40% | +87.33% | 12 |
| NVEC Nve Corp | 0.28% | 98.22 | -7.31% | +4.13% | -12.63% | +69.93% | 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.